An educator wants to construct a 99% confidence interval for the proportion of elementary school children in Michigan who are proficient in reading. Estimate the sample size needed to conduct this survey and assume that there there is no information available to be used from a previous study. Use a margin of error of 3%.   What is the sample size:   _________

Q: Use the Student's t distribution to find t, for a 0.95 confidence level when the sample is 27.

A: sample size=n=27 Degree of Freedom=n-1=27-1 =26 Confidence level is 0.95 Therefore the Level of…

Q: (a) What is the rat's sample proportion p? What is the large-sample 95% confidence interval for p?…

A: Given: Population size, n = 80 Sample size, x = 80 Sample proportion, p^: p^=8080=1

Q: In the following scenario for a hypothesis test for a population mean, decide whether the z-test is…

A: Here, population standard deviation is known and sample size, n=24 which is less than 30. Then,…

Q: Use the given confidence interval to find the margin of error and the sample mean. .734, .760

A: From the given information, the confidence interval is (0.734, 0.760). It can be expressed in,

Q: The formula P %3D n + 4 is describing the [Select ] method for calculating an approximate confidence…

A: Solution: X=no of successes  n=no of experiments  To find approximate confidence interval for a…

Q: In the construction of confidence intervals, if all other quantities are unchanged, a increase in…

A: Solution: The confidence interval is calculated by using the following formula

Q: Use the given confidence interval to find the margin of error and the sample mean. (13.2,20.2) The…

A: Given: confidence interval = (13.2, 20.2)

Q: A simple random sample of 400 individuals provides 100 Yes responses. a. What is the point estimate…

A: Given information x = 100 Sample size (n) = 400

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

A: Obtain the value of margin of error.   The value of margin of error is obtained below as follows:…

Q: find the margin of error for a sample mean, given n=16, s=4, Xbar=17. for a 95% confidence interval.

A: The margin of error for sample mean is given by,

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

A: The margin of error and the sample proportion are calculated by using the given confidence interval…

Q: Use the given confidence interval to find the margin of error and the sample mean. (13.5,20.7) The…

A:

Q: Use the given confidence interval to find the margin of error and the sample mean. (14.3,22.1) .....…

A:

Q: Construct the 94% confidence interval estimate of the population proportion ? if the sample size is…

A:

Q: Two competing airlines, Alpha and Beta, fly a route between Des Moines, lowa, and Wichita, Kansas.…

A:

Q: c. What is the margin of error for a 90% confidence interval estimate for the difference between the…

A: Given data: First round Final round 71 75 69 68 69 66 73 76 69 72 69 75 72 72 69…

Q: Use the given confidence interval to find the margin of error and the sample proportion. (0.741,0…

A:

Q: Determine the sample size necessary to construct a 85% confidence interval with an error of 0.07 if…

A: Given,margin of error (E)=0.07sample proportion…

Q: Construct the 95% confidence interval estimate of the population proportion ? if the sample size is…

A: Given Data Sample Size, n = 400 Number of successes, x = 52.0 confidence level,c=…

Q: When planning to construct a 95% confidence interval for a population mean such that it is within…

A: Given data, E=1/8=0.125 Let p=0.5 z-value at 95% confidence is Zc=1.96 n=?

Q: A national polling organization wishes to generate a 98% confidence interval for the proportion of…

A: We need to find the sample size for the given interval.

Q: 1. A simple random sample of 255 individuals provided 92 responses "Yes". (a) What is the point…

A: As per the guidelines we are allowed to solve maximum of 1 question, If you need help with other…

Q: A researcher in campaign finance law wants to estimate the proportion of elementary, middle, and…

A: Given, Margin of error, E = 0.05 Confidence level = 95%

Q: Do People Think the Sun Goes around the Earth? In the 2018 General Social Survey, people were asked…

A: According to our policy we can answer only first three part for remaining please repost the…

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

A: The confidence interval is CI = (0.589,0.619) CI = (LB,UB)

Q: In a previous study, it was found that p̂= .73 for a particular sample. Suppose we would like to…

A: Given information Error = 0.01 Confidence level = 0.98

Q: Determine the margin of error for the confidence interval for the proportion: 0.575 <p<0.722

A:

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

A: Given, Confidence interval (0.741, 0.767) Upper limit U = 0.767 Lower limit L = 0.741

Q: In June 2020, a Gallup Poll asked U.S. adults whether immigration was a good thing or a bad thing…

A: Given X=600 n=1000

Q: Use the given degree of confidence and sample data to construct a confidence interval for the…

A: Solution: From the given information, X=30 and n=56.

Q: Given the information: the sampled population is normally distributed, X– = 36.5, σ = 3, and n = 20.…

A: Given that

Q: An online seller of Yema Cake, surveyed several customers. Fifty-two percent (52%) of the customers…

A:

Q: Use the given confidence interval to find the margin of error and the sample mean.  (4.81, 8.09)

A: The confidence interval is given by (4.81, 8.09)

Q: In a random sample of 200 people, 154 said they watched educational television. We wish to construct…

A: Given there are 200 people, 154 said they watched educational television. a) Given confidence…

Q: Determine the margin of error for the confidence interval for the proportion: 0.518 <p<0.774 The…

A: We have to find margin of error

Q: Use the confidence interval to find the margin of error and the sample mean.   (.364,0.500)

A:

Q: a. What should the sample size be for a 98% confidence interval for p to have a margin of error of…

A: Given: σ=17.40

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

A: According to the given information, we have Given confidence interval = (0.675, 0.703)

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

A: Here, the confidence interval is (0.591, 0.621). The margin of error is given below: Margin of…

Q: a) Using a sample size of 75, construct a 95% confidence interval estimate of the mean birth weight…

A: here given ,  A study has been conducted to verify the mean of birth weight at Apple County. From…

Q: If no previous study has been done, give the sample size we should use to find p with a margin of…

A: From the provided information, Margin of error (E) = 0.02 The confidence level = 90% The sample…

Q: The U.S. Department of the Interior is checking cattle on the Windgate open range in Montana. A…

A:

Q: a. What is the best estimate for the standard error of the sampling distribution? b. What is the…

A:

Q: Use the given confidence interval to find the margin of error and the sample mean. (13.5,21.9)

A: Given confidence interval (13.5, 21.9)

Q: Suppose you are given the following information from a sample of data: variance is 484 the number…

A: Given that

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

A: Let the confidence interval for population proportion is (a, b) Margin of Error : E =b-a2 Sample…

Q: 7. use the given confidence interval to find the margin of error and the sample proportion.  a.…

A: The objective is to find the margin of error and the sample proportion for the given confidence…

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

A: Solution-: Given: C.I. is (0.702,0.728) Where, LL=0.702, UL=0.728  Find M.E. and  ,

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.