sample of 30 college students had left an average tip of $3.31, with a standard deviation of andom sample of 48 non-college-student adults had left an average tip of $4.29, with a standard of $1.12. est statistic (2 decimal places): -value (4 decimal places - if less than 0.001 answer 0): e correct result: ct the Null Hypothesis ot Reject the Null Hypothesis I be the appropriate conclusion? is significant evidence to suggest that college students tip less, on average, than their non- e-student adult counterparts. is not significant evidence to suggest that college students tip less, on average, than their llego.studer

sample of 30 college students had left an average tip of $3.31, with a standard deviation of andom sample of 48 non-college-student adults had left an average tip of $4.29, with a standard of $1.12. est statistic (2 decimal places): -value (4 decimal places - if less than 0.001 answer 0): e correct result: ct the Null Hypothesis ot Reject the Null Hypothesis I be the appropriate conclusion? is significant evidence to suggest that college students tip less, on average, than their non- e-student adult counterparts. is not significant evidence to suggest that college students tip less, on average, than their llego.studer

Name: A pizza delivery driver recently complained that the college students
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: A pizza delivery driver recently complained that the college students he delivers to don't tip as much otheradults. Test this complaint at the a = 0.10 tevel of significance, Let uc represent the average tip left bya college student and uo represent

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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Body Temperature ProblemThe mean body temperature used in the medical field is 98.6℉ with a standard deviation of σ=0.87℉. A family physician claims that the mean body temperature is less than 98.6℉. She measures the body temperature for 37 randomly selected patients. Their mean body temperature was 98.2℉. Test the claim using a significance level of 0.01. State the claim, null, and alternative hypothesis. Claim: μ 98.6℉ HO: μ 98.6℉ H1: μ 98.6℉
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Type an integer or decimal, do not round.
3
Among private universities in the United States, the mean ratio of students to professors is 35.2 (i.e., 35.2 students for each professor) with a standard deviation of 8.8. Suppose a random sample of 50 universities is selected and the observed mean student-to-professor ratio is 38. Is there evidence that the reported mean ratio actually exceeds 35.2? Use  = 0.05 and conduct the appropriate hypothesis test. ( See attached picture )
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Assume the average amount of days a patient spends in hospital is believed to be 24 days and a hospital claims that their experience suggests that the average is actually lower. They randomly selected and followed 33 patients and found that the mean number of days was 21.5 with a standard deviation of 7.8. What is the test statistic and your conclusion for a=0.05? O A. Test statistic: -1.841 Conclusion: Not enough evidence to reject the null hypothesis O B. Test statistic: 1.841 Conclusion: Not enough evidence to reject the null hypothesis O C. Test statistic: 1.841 Conclusion: Reject the null hypothesis D. Test statistic: -1.841 Conclusion: Reject the null hypothesis
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