A city ballot includes a local initiative that would legalizegambling. The issue is hotly contested, and two groups decide toconduct polls to predict the outcome. The local newspaper findsthat 46% of 800 randomly selected voters plan to vote "yes,"while a college Statistics class finds 47% of 2300 randomlyselected voters in support. Both groups will create 99%confidence intervals. Assume that all voters know how theyintend to vote and that the initiative requires a majority vote topass. Complete parts a through c below.a) Without finding the confidence intervals, explain which onewill have the larger margin of error.will have the larger margin of error, atleast mainly becauseb) Find both confidence intervals.The confidence interval for the local newspaper is (%,%).(Round to one decimal place as needed.)The confidence interval for the college Statistics class(%, %).(Round to one decimal place as needed.)c) Which group concludes that the outcome is too close to call?Why?that the outcome is too closeto call, since the interval(s) obtained by this/these group(s)

Answered: Image /qna-images/answer/0e91f49b-64a0-43e4-bce8-8a8760c6d435.jpg

Answered: legalize gambling. The issue is hotly…

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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A somewhat outdated study indicates that the mean number of hours worked per week by software developers is 44. We have good reason to suspect that the mean number of hours worked per week by software developers, μ, is now greater than 44 and wish to do a statistical test. We select a random sample of software developers and find that the mean of the sample is 49 hours and that the standard deviation is 4 hours. Based on this information, complete the parts below. (a) What are the null hypothesis H, and the alternative hypothesis H, that should be used for the test? μ x H₁ : H₁ (b) Suppose that we decide not to reject the null hypothesis. What sort of error might we be making? (Choose one)▼ (c) Suppose the true mean number of hours worked by software engineers is 51 hours. Fill in the blanks to describe a Type II error. A Type II error would be rejecting when, in fact, is equal to 44 ▼the hypothesis that is less than ▼ 44 O□ ロ=ロ G □≠□
I. PROBLEM SOLVING: Estimate the population proportions of each of the following data. Show complete solutions. 1. Who knows the game sipa? A Physical Education major sought to determine whether all Filipinos are familiar with this game. Among 1,500 respondents, 358 knew the game. Use 90% confidence to estimate the population proportion p and q. Interpret the sample data. 2. In a survey of 458 random households, people take pride in discussing their methods of environmental protection. 236 manage their trash by separating biodegradables from non- biodegradables. Biodegradables are converted into fertilizers while non-biodegradables are disposed properly. Use a 95% confidence to estimate the proportion of all households who are good practices of trash management. ADDLTA ATIODI
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K A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.01 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? 75 01 51 16 84 31 37 90 80 Male Female Click here to view the chi-square distribution table. 00 47 Human activity Natural patterns Don't know 58 56 Ho: H₁: 321 298 Identify the null and alternative hypotheses. The sex of the respondent Compute the test statistic. 163 164 (Round to three decimal places as needed.). Find the critical value(s). Area to the Right of the critical value Chi-square distribution table 0.95 0.004 0.103 0.352 0.711 1.145 1.635 2.167 2.733 3.325 3.940 and and 0.90 0.016 0.211…
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Part d, e, f only please
A father and his three children decide to hold a vote to select an after dinner activity. They will either see a play or a movie. If the majority of the family agrees on a preferred activity, then they will do that activity. If two family members vote to see a play and the other two family members vote to watch a movie, then (since the father will pay for the activity), the father's vote will be used to break the tie. (a) How many winning coalitions are there in this situation? (b) Find one of the children's Banzhaf power index.

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