Using the information from above, with p′=0.488, q′=0.512, and n=400, what is the 90% confidence interval for the proportion of the population who own a tablet computer? z0.10 z0.05 z0.025 z0.01 z0.005 1.282 1.645 1.960 2.326 2.576 Use the table of common z-scores above. Round the final answer to three decimal places.

Q: Use the given data to construct a 98%confidence interval for the population proportion p x = 52 , n…

A: We have given that,  Favorable cases (X) = 52 and sample size (n) = 69 Then,  We will find the 98%…

Q: The correct value of Z to use for an 80% confidence interval for is: O A. 1.96 О В. 1.28 O C. 2.33 O…

A:

Q: Calculate the lower 95% confidence interval for the population mean. (round to the nearest tenth)…

A: given data n = 31σ2 = 15∴σ = 15 = 3.873x¯ = 5695% ci for μ = ?

Q: Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 23.…

A: It is given that the sample size is 23 and the confidence level is 0.90.

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A: We are given that 95% confidence interval is correctly calculated from the given data as (0.12,…

Q: Use the Student's t distribution to find tc for a 0.99 confidence level when the sample is 20.…

A: From the given information, the sample size is n=20. The degree of freedom is, n – 1 = 20– 1 = 19.…

Q: Use the Student's t distribution to find tc for a 0.99 confidence level when the sample is 31.…

A:

Q: Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 4. (Round…

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Q: In a survey of 3700 TV viewers, 834 said they watch network news programs. Find the margin of error…

A: Solution

Q: In a study of 480 households, 168 households were found to have 4 cell phones. Find a 95% confidence…

A: Given: x=168 n=480 p^=xn=168480=0.35

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A: Given, sample size (n) = 37 sample mean ( d̄ ) = 4.132  Standard deviation ( Sd )  = 0.749…

Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…

A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.

Q: You are interested in finding a 98% confidence interval for the average commute that non-residential…

A: b. Using EXCEL function, “=AVERAGE(A1:A10)”, and “=STDEV.S(A1:A10)”, the values of sample mean and…

Q: Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 12.…

A:

Q: To estimate the proportion of smoker a sample of 100 men was selected. In the selected sample, 40…

A:

Q: Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 23.…

A:

Q: Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 8. (Round…

A:

Q: Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 10.…

A: 95% confidence level Sample size , n = 10 Degrees of freedom = n - 1 Degrees of freedom = 10 - 1 = 9

Q: 15 people were asked to measure their pulse rates after completing a 3 km run. The sample data are…

A: Step-by-step procedure to obtain the 98% confidence interval for them mean of the population  using…

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A: Level of significance ɑ=0.25

Q: listed below are the student evaluations ratings of a course, where a 5 is excellent. Ratings were…

A:

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: The confidence is between (0.698, 0.724). The (1-α) % confidence interval is as follows:

Q: Construct the 90% confidence interval for the difference p1-p2 when x1=45, n1=85, x2=20, and n2=65.…

A: Given Information: x1=45n1=85x2=20n2=65c=90%=0.90

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

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A: Given: Enter the give data in to excel sheet

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Q: What is z* for a 92% confidence level?

A: To find value of Z* for a 92% confidence level ??

Q: tc for a 0.95 confidence level when the sample is 19. (Round your answer to three decimal places.)

A: Given that,

Q: Construct a 90​% confidence interval of the population proportion using the given information.…

A:

Q: 20. Suppose a 90% confidence interval is stated as (0.3011, 0.4189). What is the sample proportion…

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Q: In a survey of 2206 adults in a recent year, 1441 say they have made a New Year's resolution.…

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Q: Keisha wants to estimate the percentage of managers at her company that hold an MBA. She surveys 320…

A: Givensample size(n)=320x=72sample proportion(p^)=xn=72320=0.225confidence level=90%

Q: Use the Student's t distribution to find tc for a 0.95 confidence level when the sample is 4. (Round…

A: Given information- Confidence level, c = 0.95 So, significance level, α = 0.05 Sample size, n = 4…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

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Q: Use the Student's t distribution to

A: From the given information, the confidence level is 0.95 Significance level is 1-0.95=0.05 Given…

Q: Use the Student's t distribution to find tc for a 0.90 confidence level when the sample is 6. (Round…

A: Given: Confidence level = 0.90 Sample size (n) = 6 Level of significance = 1- Confidence level =…

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Confidence interval=(0.729​,0.755​) Find margin of error=E

Q: Use the given confidence interval to find the margin of error and the sample proportion.…

A: Solution: From the given information, the confidence interval for the population proportion is…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.