InkReplayReplay3. A survey taker randomly approached 344 individuals in the mall, hoping to asksome survey questions. Only 206 people agreed to participate. They were asked(1) their sex; (2) whether or not they exercise. The results are below.MenWomenDo not exercise16, 31.4%Do not exercise48, 31.0%Exercise35, 686%Exerci se"107 690%What proportion of the men exercise? -68.6%What proportion of the women exercise? -69.0%Do the two variables (sex and whether or not someone exercises) seem to beassociated? Explain.What proportion of those who exercise were women?What proportion of those who exercise were men?Do your answers d. and e. make you rethink your response to c.? Explain.Is it misleading that the two pies are the same size? Explain.D Focus

Total number of people participated in the survey = 206 Number of men = 35+16 = 51 Number of women =…

Answered: 3. A survey taker randomly approached…

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 survey was taken on course selection and gender. The results are represented in the table below. Воoys Girls ТОТAL Band 27 17 44 Team Sports 64 46 110 Neither 13 9. 22 ТОTAL 104 72 176 What percentage of those surveyed are boys OR taking band? Round to the nearest percent. % are boys or taking band
A website invited women to visit its site to complete a survey, and 1500 respondent responses were recorded. When asked whether they would rather have more money or more sleep; 88% responded more money and 12% responded more sleep. 1) Identify the variable in this study. 2) What is the sample in this study? 3) What is the implied population?
A 2010 survey asked 823 randomly sampled registered voters in California "Do you support or oppose drilling for oil and natural gas off the coast of California? Or, do you not know enough to say?" The responses were separated based on whether or not the respondent graduated from college. College Graduate Not a College Graduate Support 153 139 Oppose 190 124 Do Not Know 106 111 Total 449 374 (a) Find the following proportions: Pcollege grads; do not know = .23608 Pnoncollege grads; do not know = .29679 (b) Conduct a hypothesis test to determine if this difference is statistically significant (Pcollege grads; do not know Pnoncollege grads; do not know) and - thus determine whether the data provide strong evidence that the proportion of college graduates who do not have an opinion on this issue is different than that of non-college graduates. Test Statistic = P-Value =
E Tnfanticide an ove... In a certain school district, it was observed that 25% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 107 out of 336 students are only children. The school district administrators want to know if the proportion of only children in the special program is significantly different from the proportion for the school district. Test at the a 0.02 level of significance. What is the hypothesized population proportion for this test? (Report answer as a decimal accurate to 2 decimal places. Do not report using the percent symbol.) Based on the statement of this problem, how many tails would this hypothesis test have? O one-tailed test O two-tailed test Choose the correct pair of hypotheses for this situation: (A) (B) (C) Ho:p = 0.25 H:p 0.25 0.25 (D) (E) (F) 0.318 Ho:p Ha:p < 0.318 H:p# 0.318 Ha:p Ho:P 0.318 Ho:p 0.318 0.318 (A) (B) (C) (D) (E) (F) Using the normal…
Q2: The median age of the children is: 29 30.5 28.5 28
E NOLI Researchers conducted two surveys about teens are their use of social media. The first survey asked a random sample of 800 U.S. teens about their use of Instagram. A second survey asked the same questions to a random sample of 2253 Canadian teens. In these two studies, 73% of U.S. teens and 88% of Canadian teens said that they use Instagram. Use these results to answer the following questions about the proportion of U.S. and Canadian teens that use Instagram. Is there a statistically significant difference between the use of social media by U.S. teens and Canadian teens? No, there is no difference between the proportion of U.S. teens that use Instagram and the proportion of Canadian teens that use Instagram because both the lower limit and the upper limit of the confidence interval are negative values. Yes, the proportion of U.S. teens that use Instagram is significantly less than the proportion of Canadian teens that use Instagram difference because both the lower limit and the…
College Degree Recipients A survey of 800 recent degree recipients found that 158 received associate degrees; 451, bachelor degrees, 21 first-professional degrees; 154, master degrees; and 16, doctorates. Is there sufficient evidence to conclude that at least one of the proportions differs from a report which stated that 23.3% were associate degrees; 51.1%, bachelor degrees; 3%, first professional degrees; 20.6%, master degrees; and 2%, doctorates? Use =α0.10.
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A survey was taken on course selection and gender. The results are represented in the table below. Вoys Girls TOTAL Band 27 17 44 Team Sports 64 46 110 Neither 13 9 22 ΤΟTAL 104 72 176 What percentage of those surveyed are boys AND taking Team Sports? Round to the nearest percent. % are boys and taking team sports.
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You create three versions of a survey, each with different ways of phrasing the questions (positive, negative, or neutral). You randomly assign participants to one of the three surveys, each of which has 20 items for which participants rate their agreement. After collecting the surveys, you calculate an average agreement score for each participant. If testing hypotheses about question phrasing on agreement, it would be most appropriate to calculate a. 1) O One-way (independent) ANOVA ›2)Repeated measures ANOVA 3) factorial ANOVA Factorial ANOVA

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