rk, Chapter 7.2-Google Chrome-lluA mylab.pearson.com/Student/PlayerHomework.aspx?homeworkld3623493716&questionld%3D21&flushed%-true&cld%36887268¢erwin=yesMAT 209: StatisticsZakaria Ahmed04/08/22 1:23 AM EHomework: Homework, Chapter7.2HW Score: 31.94%, 7.67 of 24pointsO Points: 0 of 1Question 18, 7.2.31>SaveUse the given data to find the minimum sample size required to estimate a population proportion or percentage.Margin of error: seven percentage points; confidence level 95%; from a prior study, p is estimated by the decimal equivalent of 56%n =(Round up to the nearest integer.)Check answerClear allntact UGet more help -View an exampleHelp me solve this

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I only need part B
Use the given to find the minimum sample size required to estimate a population proportion or percentage. Margin of error :0.09, confidence level 95%; p and Q unknown
Two intervals are given, A and B, for the same value of the explanatory variable. A: 11 to 17; B: 8 to 20; (a) Which interval is the confidence interval for the mean response?A or B Which interval is the prediction interval for the response?A or B (b) What is the predicted value of the response variable for this value of the explanatory variable?Enter the exact answer.The predicted value is=
use the given data to find the minimum sample size required to estimate the population proportion. margin of error:0.07; confidence level: 95%; from a prior study, p is estimated by the decimal equivalents of 90%
Which store do you think is more expensive—physical or online? A recent survey found that 45% of people aged 20 to 40 thought that physical stores were more expensive. To conduct a follow-up study that would provide 95% confidence that the point estimate is correct to within 0.05 of the population proportion, how many people aged 20 to 40 need to be sampled? (PHStat) To conduct a follow-up study that would provide 99% confidence that the point estimate is correct to within 0.05 of the population proportion, how many people aged 20 to 40 need to be sampled? (PHStat) Compare the results of (a) and (b).
Determine whether the following statements are True or False: If we increase the confidence level C, then the width of the CI decreases, i.e., the CI becomes narrower. (Hint: think about what happens to the margin of error m) Suppose the mean of a population µ = 100. If we found that the margin of error is m = 2 for level of confidence 98%, then we can be 98% confident that a sample mean (computed from a sample of the same size used to compute m) is in the interval (98, 102).
Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96
also, what is the lower and upper limits ?

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