Help me Identify the Hypotheses • In a 2019 survey of 560 college students, 171 said they used illegal drugs duringthe previous year. In a recent survey of 720 college students, 263 said that theyused illegal drugs during the previous year (based on data from the National Centerfor Addiction and Substance Abuse at Colombia University). Use a 0.05 significancelevel to test the claim that the proportion of college students using illegal drugs in1993 was less than it is now.

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Answered: • In a 2019 survey of 560 college…

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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Please show step by step work: An original claim is made that 60% of American consumers are not comfortable with the use of drone delivery for merchandise. Hypothesis testing results in Rejection of the Null hypothesis. Using Figure 8-5 on page 366 of the text, clearly state the final conclusion reached from this hypothesis test.
You may need to use the appropriate appendix table or technology to answer this question. A study showed that 62% of supermarket shoppers believe supermarket brands to be as good as national name brands. To investigate whether this result applies to its own product, the manufacturer of a national name-brand ketchup asked a sample of shoppers whether they believed that supermarket ketchup was as good as the national brand ketchup. (a) Formulate the hypotheses that could be used to determine whether the percentage of supermarket shoppers who believe that the supermarket ketchup was as good as the national brand ketchup is less than 62%. H0: p = 0.62 Ha: p ≠ 0.62 H0: p ≥ 0.62 Ha: p < 0.62 H0: p < 0.62 Ha: p ≥ 0.62 H0: p > 0.62 Ha: p ≤ 0.62 H0: p ≤ 0.62 Ha: p > 0.62 (b) If a sample of 100 shoppers showed 51 stating that the supermarket brand was as good as the national brand, what is the p-value? Find the value of the test statistic. (Round your answer to two…
PLEASE HELP WITH THE PROBLEM BELOW Let pm and pf be the respective proportions of male and female white-crowned sparrows that return to their hatching site. We observed that 124 out of 894 males and 70 out of 700 females returned. Does your result agree that there is no difference between the proportions of male and female white-crowned sparrows that return to their hatching site with α = 0.05? Formulate the hypotheses Finish the hypothesis testing and draw your conclusion (use p-value to test the hypotheses)
In order for an airline to cancel a flight, there needs to be over 6 inches of snow on the ground. Suppose we want to do a test to prove there is over 6 inches of snow on the ground. (Hint: In order to answer this question, you should first write out the null and alternative hypotheses). What is the type I error I could make here? Describe it in terms of this situation, NOT a general а. definition.
Gender of Interviewer Man Woman Women who agree 578 314 Women who disagree 322 86 Identify the null and alternative hypotheses. Choose the correct answer below. A. H0: The response of the subject and the gender of the subject are independent. H1: The response of the subject and the gender of the subject are dependent. B. H0: The proportions of agree/disagree responses are different for the subjects interviewed by men and the subjects interviewed by women. H1: The proportions are the same. C. H0: The proportions of agree/disagree responses are the same for the subjects interviewed by men and the subjects interviewed by women. H1: The proportions are different. Compute the test statistic. Find the critical value(s). What is the conclusion based on the hypothesis test? Fail to reject/ Reject H0. There is/is not sufficient evidence to warrant rejection of the claim that the…
Let’s assume the average income for all majors in the School of Engineering is $80,000. However, the chair of the Computer Science department thinks their students earn more than that. Please choose the appropriate null and alternative hypotheses if the chair wanted to test this belief. a. H0: u <=80,000 Ha: u > 80,000 b. H0: u= 80000 Ha: u not= 80000 c. H0: u >80000 Ha: u < 80000 d. H0: u >80000 Ha: < 80000 e. None of the above.
I don't know which part I get wrong but I only have 6/10. Could you check my answer please
4
You watch people exiting Dodgers stadium after a game and you write down the number of males and the number of females that exit the stadium past you during the 20 minutes that you spend watching. You assumed that there would be a perfectly equal number of males and females attending a Dodgers game, but you look at the number of males and females that you actually counted, and you see if you still think that is actually true. What kind of hypothesis test would allow you to do this? a. One-Factor, Independent-Measures ANOVA b. Two-Factor ANOVA c. Correlation/Regression d. Chi-Square Goodness of Fit

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