A random sample of 100 high school students was asked, "Do you prefer to be a leader or a follower?"The responses were then classified according to grade level. Here is a bar graph of the results:Frequency3025201510сл50129thGrade and Leadership Preference1810th722511thGrade Level121612thLeaderFollowerBased on this sample, is there convincing evidence of an association between grade level and leadershippreference in the population of students at this large high school? Use a = 0.05. Provide statisticalevidence to support your answer.

Given that: Level of significance, α=0.05 Extracted the data from the bar-graph: Leadership…

Answered: A random sample of 100 high school…

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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Short Answer 3: Thirty students were surveyed as to their ethnicity, and the following was the data: Hisp. White Asian Hisp. Afr. White Afr. Hisp. Asian Hisp. Hisp. White White White Hisp. White Afr. Hisp. Hisp. Hisp. Hisp. White Hisp. White Afr. White Afr. Hisp. White Hisp. Graph a bar chart and a pie chart BY HAND, and upload them to this question using the "File Upload" feature!
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64 owners and a similar age group of pet owners. The pet owners are matched one to one with the non-pet owners for income, number of close friendships, and 0. A researcher uses a matched-subjects design to in- than singles without pets. A mood inventory survey vestigate whether single people with pets are happier happier is given to a group of 20- to 29-year-old non-p general health. The data follow: Non-Pet Owner Pet Owner Matched Pair 12 14 8. 10 13 9. 9. D 13 E 10 12 F a. Is there a significant difference in the mood scores for non-pet owners versus pet owners? Test with a = .05 for two tails. b. Construct the 95% confidence interval to estimate the size of the mean difference in mood between the population of pet owners and the population of non-pet owners. (You should find that a mean difference of p, = 0 is an acceptable value, which is consistent with the conclusion from the hypoth- esis test.) %3D D. AB
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