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
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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