The 95 percent confidence interval is wider than the 90 percent confidence interval because the 95 percent level of confidence includes more of the distribution. This means there is a greater level of certainty that the true value of the population mean is contained within the interval.
Explanation:The 90 percent confidence interval is (67.18, 68.82). The 95 percent confidence interval is (67.02, 68.98). The 95 percent confidence interval is wider. If you look at the graphs, because the area 0.95 is larger than the area 0.90, it makes sense that the 95 percent confidence interval is wider. For more certainty that the confidence interval actually does contain the true value of the population mean for all statistics exam scores, the confidence interval necessarily needs to be wider.
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This figure shows circle Z with chords AB and RS . mAR=55° mRB=66° AB=8 m RS=8 m What is mRS?
Answer:
The correct answer is, mRs = 121°
Step-by-step explanation:
From figure we get ,
mAR=55° mRB=66° AB=8 m RS=8 m
To find mRS
Using given information we can write,
mAB = mAR + mRB = 55 + 66 = 121°
Since AB=8 m RS=8 m,
AB = RS
⇒ mAB = mRS
mAB = 121°
Therefore mRS = 121°
The correct answer is given by,
mRS = 121°
At a local department store, pants have been reduced to $26. this price is at 68.4% of the original price for pants. given this, what was the original price of the pants?
The price of 6 pretzels is $5.10. Simon and Sofia bought 8 pretzels an shared the cost equally. How much did each person pay?
Answer:
$3.40
Step-by-step explanation:
To find out the amount each person paid, let's find the total cost of the pretzels first.
6 pretzels ----- $5.10
1 pretzel ----- $5.10 ÷6= $0.85
8 pretzels ----- 8($0.85)= $6.80
The total cost of 8 pretzels is thus $6.80.
Since the total cost was shared equally amongst two people, each person paid half of the total cost.
Amount each person paid
= $6.80 ÷2
= $3.40
By taking a quotient between the total cost and the number of people, we can see that each one pays $3.40
How much did each person pay?We know that the price of 6 pretzels is $5.10, then the price for each pretzel is given by the quotient:
$5.10/6 = $0.85
We know that Simon and Sofia bought 8 pretzels, so they pay:
P = 8*$0.85 = $6.80
And they divide that evenly between the two, so we can take the quotient:
p = $6.80/2 = $3.40
That is the amount that each person pays.
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Find the equation of the line with the given properties: slope of 2, contains the point ( 4, -3).
Answer:
y = 2x - 11
Step-by-step explanation:
We are given that a line has a slope of 2 and passes through the point (4, -3).
As the question doesn't specify, we can write the equation of the line in any format.
There are 3 ways to write the equation of the line. They are:
Slope-intercept form, which is y=mx+b, where m is the slope and b is the value of y at the y intercept.Standard form, which is ax+by=c, where a, b, and c are free integer coefficients, however a and b cannot be 0 and a cannot be negative. Point-slope form, which is [tex]y-y_1=m(x-x_1)[/tex], where m is the slope and [tex](x_1,y_1)[/tex] is a point.Although while all of these choices are valid, let's write the equation in slope-intercept form, as that is the most common way to write the equation of the line.
As we are already given the slope of the line, we can immediately plug it into the equation as m.
Replace m with 2.
y = 2x + b
Now we need to find b.
As the line contains the point (4, -3), we can use its values to help solve for b.
Substitute 4 as x and -3 as y.
-3 = 2(4) + b
Multiply.
-3 = 8 + b
Subtract 8 from both sides.
-11 = b
Substitute -11 as b in the equation.
y = 2x - 11
Topic: finding the equation of the line
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Below is the graph of f ′(x), the derivative of f(x), and has x-intercepts at x = –3, x = 1 and x = 2. There are horizontal tangents at x = –1.5 and x = 1.5. Which of the following statements is true?
A) f has a relative minimum at x = 1.5
B) f has relative maximum at x = -1.5
C) f is decreasing on the interval from x = 1 to x = 2
D) none of these are true
https://seminole.flvs.net/webdav/assessment_images/educator_apcalcab_v14/08_01_04.gif
The only statement that is true as regards the graph of f ′(x) is;
C: f is decreasing on the interval from x = 1 to x = 2
We are told that the graph of f ′(x) has x-intercepts at x = –3, x = 1 and x = 2.Now, f'(x) is simply the derivative of f(x) and the derivative of f(x) is defined as the slope.
Since x-intercepts of the derivative are at x = –3, x = 1 and x = 2. It means that the values of x that will make the slope to be zero are x = –3, x = 1 and x = 2.Now, the minimum for the derivative graph usually happens when the the graph goes from negative to positive. This means that the graph is decreasing when the x-intercepts of the slope is positiveIn contrast the graph is increasing when the x-intercepts of the slope is negative.
Let us look at the options;
Option A; This is not correct because the derivative has to be zero at minimum point. Option B; This is not also correct because the derivative has to be zero at maximum point.Option C; This is correct because slope is positive when the graph is decreasing and from x = 1 to x = 2 is positive interval.Read more about graph of derivative of a function at; https://brainly.com/question/2284808
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What is the domain of the relation graphed below? GET 50 POINTS!
Answer:
Domain is the set of x values
so domain is {-5 , -4 , -3 , 1 , 2 , 5}
Which values are solutions to the inequality below?
Check all that apply.
√x ≤ 11
a) 121
b) 120
c) 111
d) -10
e) 122
f) no solutions
The values that are solutions to the inequality √x ≤ 11 are 121, 120, and 111.
Explanation:To find the values that are solutions to the inequality √x ≤ 11, we first need to square both sides of the inequality. This gives us x ≤ 121. So any value of x that is less than or equal to 121 will be a solution.
Now let's check each option:
a) 121: 121 is equal to 121, so it is a solution.b) 120: 120 is less than 121, so it is a solution.c) 111: 111 is less than 121, so it is a solution.d) -10: Negative numbers do not have real square roots, so -10 is not a solution.e) 122: 122 is greater than 121, so it is not a solution.f) no solutions: This option is not a valid solution.In summary, the values that are solutions to the inequality √x ≤ 11 are: 121, 120, and 111.
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Add the reciprocal of 1 1/5 to the sum of the numbers (+1.25) and (−1 3/4 ).
The answer would be 1/3 after adding the reciprocal of 1 1/5 to the sum of the numbers (+1.25) and (−1 3/4 ).
What is a fraction?Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.
It is given that:
The fraction is 1 1/5 = 6/5
The reciprocal of the above fraction = 5/6
= 1.25 - 1 3/4 + 5/6
= 1.25 - 7/4 + 5/6
= 1.25 - 11/12
= 4/12
= 1/3
Thus, the answer would be 1/3 after adding the reciprocal of 1 1/5 to the sum of the numbers (+1.25) and (−1 3/4 ).
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Johnny is five years older than his brother. the sum of their ages is 37. how old is Johnny
Anton must pay a co-pay of $30 for an office visit. His insurance company will then pay 85% of the cost of the visit. How much will Anton pay for an office visit that costs $270? (Points : 1) $36.00 $40.50 $56.00 $70.50
Given:
Anton must pay a co-pay of $30 for an office visit.
His insurance company will then pay 85% of the cost of the visit.
Office visit costs $270
Solution:
[tex] co-pay \; =\; \$30 [/tex]
[tex] Insurance \; Company \; pay = 85\% \; of\; 270 = \frac{85}{100} \cdot 270 = \frac{22950}{100}=\$ 22950\\ \\ Anton \; Pay\; remaining \; of\; what\; Insurance\; Company\; pay.\\ \\ So, \; Anton \; Pay = \$270 - \$229.50=\$40.5\\ \\ [/tex]
Conclusion:
Anton totally Pay = Remaining amount for office visit + Co-pay for office visit
[tex] Anton \; pay \; for\; an \; office \; visit \; that\; costs \; \$270\; = \; \$30 \; + \; \$40.5\; =\; \$70.5 [/tex]
A circle is divided into 18 equal parts how many degrees is the angel measure for part?
All side lengths of ΔJKL equal 2 units. A transformation maps ΔJKL to ΔJ'K'L'. The length of side J'K' is 5 units. Is this a rigid transformation?
No, there is no one-to-one mapping of all the points of the pre-image to the image.
No, at least one segment length is not preserved, making this a nonrigid transformation.
Yes, the vertices of the pre-image map to the vertices of the image.
Yes, all of the side lengths of the pre-image are proportionate to the image.
No, at least one segment length is not preserved, making this a nonrigid transformation. Option B is correct.
What is geometric transformation?It is defined as the change in coordinates and the shape of the geometrical body. It is also referred to as a two-dimensional transformation. In the geometric transformation, changes in the geometry can be possible by rotation, translation, reflection, and glide translation.
It is given that, all side lengths of ΔJKL equal 2 units. A transformation maps ΔJKL to ΔJ'K'L'. The length of side J'K' is 5 units.
A transformation that leaves a geometric figure's size or shapes unchanged is known as a rigid transformation. It is a unique type of metamorphosis in which a figure's size or shape is left unchanged.
From the definition, it is obtained that there is no rigid transformation because at least one segment length is not preserved.
Thus, no at least one segment length is not preserved, making this a nonrigid transformation. Option B is correct.
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How would paying off the lowest outstanding balance credit card first be beneficial over paying off the one with the highest interest rate?
Paying off the lowest outstanding balance credit card first can be beneficial for motivation and momentum, even if it's not the most mathematically efficient approach.
Explanation:When paying off credit card debt, it can be beneficial to start by paying off the credit card with the lowest outstanding balance. This approach is called the Snowball Method and is popularized by financial expert Dave Ramsey. The Snowball Method focuses on tackling the smallest debt first, regardless of the interest rate, as it provides a psychological boost and motivates individuals to continue paying off their debts.
By paying off the smallest debt first, you can quickly eliminate one of your credit card balances. This can give you a sense of accomplishment and momentum to continue paying off your other debts. It's important to note that while the Snowball Method may not be the most mathematically efficient approach in terms of saving on interest payments, it can be effective in helping individuals stay motivated and committed to paying off their debts.
A customer buys 3 bottles of water for ninety-nine cents each seven percent tax on each bottle what is the total bill
Calculus HELP PLEASE? A highway runs due north. A car traveling at 50 mph exits the highway at a 30° angle. After driving another 1.5 hours at the same speed and direction, how far away is the car from the highway?
Answer:
37.5 miles is the answer.
Step-by-step explanation:
Since car is travelling with a speed = 50 mph
Angle between the highway and the track on which the car is travelling = 30°
Now we know sin∅ = distance between highway and the car/Distance traveled by the car on the new track
Distance traveled by the car in 1.5 hours = speed × time
= 50 × 1.5 = 75 mi.
Therefore sin 30° = x/75
x = 75×sin30° = 75 × 1/2 = 37.5 mi.
Therefore the answer is 37.5 mi away.
the inverse of an exponential function is the quadratic function? true or false?
Use the chart above to determine the premium for 10-year term insurance. $10,000 policy for a 35-year-old male. Premium = _____?
6.11
61.10
611.00
6,110.00
Answer:
Option B 61.10
Step-by-step explanation:
Given is a chart giving the premium to be paid for 10 year term insurance for different age groups for an amount of 1000 policy.
We have to calculate the premium for a 35 year old man for 10 year term insurance for 10000 policy.
From the chart we find that for a 35 year old man premium = 6.11
This premium is for 1000 dollars.
Since here sum assured is 10000 dollars, we get the premium
=6.11(10) = 61.10 dollars
Option B is correct
Premium = 61.10 dollars
If a 16 in. by 24 in. window has a wooden frame 3 inches wide surrounding it, what is the total area of the window and frame?
Answer:
The CORRECT answer is 660 sq inches
Step-by-step explanation:
Find two numbers their sum is −7 and their difference is 14
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What is the smallest integer greater than -1/2 .
Group of kids rode horses to canyon. 20 eyes 30 legs between them. How many horses
Final answer:
To solve this problem, we set up equations based on the total number of eyes and legs. By solving the system, we find that the group consists of 5 horses.
Explanation:
The question asks us to solve a problem involving a group of kids and horses by using the given information about the total number of eyes and legs. Since humans have two eyes and two legs, and horses have two eyes and four legs, we can set up a system of equations to find the solution.
Let's denote the number of kids as 'k' and the number of horses as 'h'. Since each human and horse has two eyes, the total number of eyes is given by the equation: 2k + 2h = 20. Similarly, the total number of legs is given by the equation: 2k + 4h = 30. Solving these equations will give us the number of kids and horses in the group.
Solving for 'k' from the first equation gives us k = 10 - h. Substituting this into the second equation gives us 2(10 - h) + 4h = 30. Simplifying this equation results in 20 - 2h + 4h = 30, which further simplifies to 2h = 10, and thus h = 5. Therefore, there are 5 horses in the group.
The measure of dispersion which is not measured in the same units as the original data is the
a. variance
b. standard deviation
c. median
d. coefficient determination
Variance is not expressed in the same units as the original data.
Variance is measured by:
Finding the difference between the mean of a data set and the variables in the data set Squaring this difference Summing up the squaresBecause variance is squared, it is no longer the same units as the rest of the data set. For instance, if the data set is in centimeters, the variance will be in centimeters².
In conclusion, the variance of a data set is not measured in the same unit as the data set.
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Final answer:
The measure of dispersion which is not measured in the same units as the original data is the variance.
Explanation:
The measure of dispersion which is not measured in the same units as the original data is the variance. The variance is a squared measure and does not have the same units as the data. On the other hand, the standard deviation is derived from the variance and it measures the spread in the same units as the data.
Then again, the standard deviation, which is the square foundation of the fluctuation, is estimated in similar units as the first information. It gives a proportion of the spread of the information that is all the more effectively interpretable. The middle is a proportion of focal inclination and doesn't give data about the scattering or spread of the information.
The coefficient of assurance, otherwise called R-squared, is a proportion of how well the relapse line fits the information and isn't straightforwardly connected with scattering.
what is the approximate distance between the points (-5 1) and (-2 3) on a coordinate grid
Use the quadratic formula to determine the exact solutions to the equation.
x^2−2x−4=0
Enter your answers in the boxes.
x=__ or x=___
Given cos A = 0.25 find angle A in degrees. Round your answer to the nearest hundredth.
34.12°
123.98°
56.78°
75.52°
Which of the following equations is of a parabola with a vertex at (0, 3)?
y = (x - 3) ^2
y = (x + 3) ^2
y = x ^2 - 3
y = x^ 2 + 3
The General Equation of Parabola having vertex at (0,0) and Focus(a,0) and (0,a) is
[tex]y^{2}= 4ax[/tex] or [tex]x^2 =4ay[/tex]
Now ,the Given equation of parabola having vertex at (0,3) is
x^2=y-3
It is 3 unit above y axis. So the parabola will open in the upward direction.
Out of all the options provided which are
1.y = (x - 3) ^2
2.y = (x + 3) ^2
3.y = x ^2 - 3
4.y = x^ 2 + 3
Option 4. y = x^ 2 + 3 is correct.
Answer:
y = x^ 2 + 3
Step-by-step explanation:
Complete the statement If x/7 = 5/3, then x+7/7 =?
What are the approximate solutions of 4x2 + 3 = −12x to the nearest hundredth?
x ≈ −3.23 and x ≈ 0.23
x ≈ −2.72 and x ≈ −0.28
x ≈ 0.28 and x ≈ 2.72
x ≈ −0.23 and x ≈ 3.23
Compute the requested average. Tim Worker receives the following income monthly from a second job. Jan. Feb. Mar. Apr. May June $200 $150 $250 $260 $285 $380 What is his average pay? (To the nearest hundredth.)
254.17255.37257.83259.85