Kala 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 bloodpressure among elderly females is 115 millimeters of mercury (mmHg). Kala believes the value is actually higher. She bases her belief on a recently reportedstudy of 21 randomly selected, elderly females. The sample mean systolic blood pressure was 124 mmHg, and the sample standard deviation was 20 mmHg.EAssume that the systolic blood pressures of elderly females are approximately normally distributed. Based on the study, at the 0.10 level of significance, can itbe concluded that μ, 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.)D(a) State the null hypothesis H, and the alternative hypothesis H₁LLOPРH:0H₁:0(b) Determine the type of test statistic to use.(Choose one) ▼(c) Find the value of the test statistic. (Round to three or more decimal places.)0ContinueacerOllC6esc1FNO@2W#3e$4r5%5tyDO&X-07SOSO²0<>0Ⓒ202U10

The following information has been given: The population mean is μ=115. The sample size is n=21. The…

Answered: Kala recently switched her primary…

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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Adult women in the U.S. have a mean height of 64.3", with a standard deviation of 2.58 inches. Determine the z-score of an adult female whose height is 61 inches. Round your answer to the nearest tenth.
The heights of adult men in America are normally distributed, with a mean of 69.5 inches and a standard deviation of 2.61 inches. The heights of adult women in America are also normally distributed, but with a mean of 64.6 inches and a standard deviation of 2.53 inches. If a man is 6 feet 3 inches tall, what is his z-score (to 4 decimal places)?z = If a woman is 5 feet 11 inches tall, what is her z-score (to 4 decimal places)?z =
Almost all medical schools require applicants to take the Medical College Admission Test (MCAT). To estimate the mean score of those who took the MCAT at WSSU, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 6.5. Suppose that (unknown to you) the mean score of those taking the MCAT at WSSU is 25.0. If you choose one student at random, what is the probability that the students scores is between 20 and 30?
Too much cholesterol in the blood increases the risk of heart disease. Young women typically have lower levels of cholesterol than other groups. The cholesterol levels for women aged 20 to 34 are approximately normally distributed with a mean of 185.0 milligrams per deciliter (mg/dl) and a standard deviation of 40/dl. What proportion of young women have a cholesterol level greater than 215.0 mg/dl?
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Please provide a clear and complete solution. Answer quickly for I have 30 minutes left. Thank you.
It takes an average of 9.1 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will decline if the patient is immediately told the truth about the injury. The EMT randomly selected 49 injured patients to immediately tell the truth about the injury and noticed that they averaged 8 minutes for their blood to begin clotting after their injury. Their standard deviation was 3.31 minutes. What can be concluded at the the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Hint: Ho: ? H₁: ? Select an answer Select an answer C c. The test statistic? is -2.326. Enter it here d. The p-value is 0.0121364015. Enter it here e. The p-value is ? a f. Based on this, we should Select an answer the null hypothesis. g. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) The data suggest the populaton mean is…
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It takes an average of 10.2 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will decline if the patient is immediately told the truth about the injury. The EMT randomly selected 60 injured patients to immediately tell the truth about the injury and noticed that they averaged 10.1 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.62 minutes. What can be concluded at the the a = 0.01 level of significance? a. For this study, we should use Select an answer b. The null and altemative hypotheses would be: Họ: Select an answer H1: ? Select an answer c. The test statistic (please show your answer to 3 decimal places.) d. The p-value = e. The p-value is (? va f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that .. (Please show your answer to 4 decimal places.) O The data suggest the population mean is not significantly less than 10.2 at a = 0.01, so there is…

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