A recent study showed that the average number of sticks of gum a person chews in a week is 14. A collegestudent believes that the guys in his dormitory chew less gum in a week. He conducts a study and samples25 of the guys in his dorm and finds that on average they chew 17 sticks of gum in a week with a standarddeviation of 3.1. Test the college student's claim at a=0.10.The correct hypotheses would be:Ο Η: μ < 14HA:14 (claim)Ο Η: μ > 14HA:14 (claim)Ho: μ = 14HA:The p-value is:14 (claim)Since the level of significance is 0.10 the critical value is -1.318The test statistic is:The decision can be made to:O reject Hodo not reject Ho(round to 3 places)(round to 3 places)The final conclusion is that:O There is enough evidence to reject the claim that less gum in a week.There is not enough evidence to reject the claim that less gum in a week.O There is enough evidence to support the claim that less gum in a week.O There is not enough evidence to support the claim that less gum in a week.

Givensample size(n)=25Mean(x)=17standard deviation(s)=3.1α=0.10

Answered: A recent study showed that the average…

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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Christin ently switched her primary doctor to one specializing in caring for elderly patients. On her new doctor's website, it says that the mean systolic blood pressure among elderly females is 115 millimeters of mercury (mmHg). Christine believes the value is actually higher. She bases her belief on a recently reported study of 14 randomly selected, elderly females. The sample mean systolic blood pressure was 129 mmHg, and the sample standard deviation was 22 Español mmHg. Assume that the systolic blood pressures of elderly females are approximately normally distributed. Based on the study, at the 0.05 level of significance, can it be concluded that u, the population mean systolic blood pressure among elderly females, is greater than 115 mmHg? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H . H, :0…
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