A state legislator wishes to survey residents of her district to see what proportion of the electorate is aware of her position on using state funds to pay for abortions. (Round your answers up to the nearest integer.) (a) What sample size is necessary if the 95% CI for p is to have a width of at most 0.12 irrespective of p? 263 people If the legislator has strong reason to believe that at least 6/7 of the electorate know of her position, how large a sample size would you recommend to maintain a width of at most 0.12?

A state legislator wishes to survey residents of her district to see what proportion of the electorate is aware of her position on using state funds to pay for abortions. (Round your answers up to the nearest integer.) (a) What sample size is necessary if the 95% CI for p is to have a width of at most 0.12 irrespective of p? 263 people If the legislator has strong reason to believe that at least 6/7 of the electorate know of her position, how large a sample size would you recommend to maintain a width of at most 0.12?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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1.
ch 11 end. 5 : The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?
Refer to the following scenario. A government official is in charge of allocating social programs throughout the city of Vancouver. He will decide where these social outreach programs should be located based on the percentage of residents living below the poverty line in each region of the city. He takes a simple random sample of 120 people living in Gastown and finds that 21 have an annual income that is below the poverty line. For each of the following statements, specify whether the statement is a correct interpretation of the 95% confidence interval for the true proportion of Gastown residents living below the poverty line. A. 17.50% (21/120) of Gastown residents are living below the poverty line. ? B. There is a 95% probability that the true proportion of Gastown residents who are living below the poverty line equals 21/120. C. If another random sample of 120 Gastown residents is drawn, there is a 95% probability that the sample proportion of Gastown residents who are living below…
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Administrators are certain about the effectiveness of the Clearwater Preschool spelling program. The average spelling score is 28 for children of comparative age. The data below are spelling scores from a sample of children from Clearwater Preschool. Scores range from 0 - 40 with higher scores indicating better spelling. What can be concluded with an α of 0.05? A)What is the population? B)What is the sample?
Can you please help on questions 6-8? Thank you