S-adenosyl methionine (SAM-e) is a naturally occurring compound in human cells that is thought to have an effect on depression symptoms. Suppose that a researcher is interested in testing SAM-e on patients who are struggling with Alzheimer's. She obtains a sample of n= 30 patients and asks each person to take the suggested dosage each day for 4 weeks. At the end of the 4-week period, each individual takes the Beck Depression Inventory (BDI), which is a 21-item, multiple-choice self-report inventory for measuring the severity of depression. The scores from the sample produced a mean of M = 26.2 with a standard deviation of s = 2.97. In the general population of Alzheimer's patients, the standardized test is known to have a population mean of u = 28.1. Because there are no previous studies using SAM-e with this population, the researcher doesn't know how it will affect these patients; therefore, she uses a two-tailed single-samplet test to test the hypothesis. From the following, select the correct null and alternative hypotheses for this study: O He: PSAM-e s 28.1; H: PSAMe > 28.1 O Hạ: MSAMe 2 28.1; H,: MSAM-e < 28.1 O Họ: HSAM e - 28.1; H: PSAMe 28.1 O He: MSAMe 2 28.1; H: MSAM-e > 28.1 Assume that the depression scores among patients taking SAM-e are normally distributed. You will first need to determine the degrees of freedom. There are v degrees of freedom. Use the t distribution table to find the critical region for a = 0.01. The t Distribution: Proportion in One Tail 0.25 0.10 0.05 0.025 0.01 0.005 Proportion in Two Tails Combined df 0.50 0.20 0.10 0.05 0.02 0.01
S-adenosyl methionine (SAM-e) is a naturally occurring compound in human cells that is thought to have an effect on depression symptoms. Suppose that a researcher is interested in testing SAM-e on patients who are struggling with Alzheimer's. She obtains a sample of n= 30 patients and asks each person to take the suggested dosage each day for 4 weeks. At the end of the 4-week period, each individual takes the Beck Depression Inventory (BDI), which is a 21-item, multiple-choice self-report inventory for measuring the severity of depression. The scores from the sample produced a mean of M = 26.2 with a standard deviation of s = 2.97. In the general population of Alzheimer's patients, the standardized test is known to have a population mean of u = 28.1. Because there are no previous studies using SAM-e with this population, the researcher doesn't know how it will affect these patients; therefore, she uses a two-tailed single-samplet test to test the hypothesis. From the following, select the correct null and alternative hypotheses for this study: O He: PSAM-e s 28.1; H: PSAMe > 28.1 O Hạ: MSAMe 2 28.1; H,: MSAM-e < 28.1 O Họ: HSAM e - 28.1; H: PSAMe 28.1 O He: MSAMe 2 28.1; H: MSAM-e > 28.1 Assume that the depression scores among patients taking SAM-e are normally distributed. You will first need to determine the degrees of freedom. There are v degrees of freedom. Use the t distribution table to find the critical region for a = 0.01. The t Distribution: Proportion in One Tail 0.25 0.10 0.05 0.025 0.01 0.005 Proportion in Two Tails Combined df 0.50 0.20 0.10 0.05 0.02 0.01
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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