At a local elementary school, a nurse istrying to determine whether the averageheight of fourth-grade students is morethan 50 inches. A sample of 30 fourthgraders had an average height of 51.4inches and a sample standard deviation of3.65 inches. At a = 0.01, is theaverage height actually more than fiftyinches?Please show all work below, includingyour null and alternative hypotheses,critical value, test value, and yourconclusion.

Answered: Image /qna-images/answer/dca45af9-f95d-44c6-9e89-17fe4ce0b1b0.jpg

Answered: At a local elementary school, a nurse…

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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Lucy recently 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 120 millimeters of mercury (mmHg). Lucy believes the value is actually higher. She bases her belief on a recently reported study of 19 randomly selected, elderly females. The sample mean systolic blood pressure was 132 mmHg, and the sample standard deviation was 24 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 μ, the population mean systolic blood pressure among elderly females, is greater than 120 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.) esc (a) State the null hypothesis H and the alternative hypothesis H₁. Ho: H₁:0 (b)…
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