In a randomized double-blind, placebo-controlled trial of children, an herb was tested as a treatment for upper respiratory infections in children. "Days of fever" was one criterion used to measure Question list K effects. Among 305 children treated with the herb, the mean number of days with fever was 0.94, with a standard deviation of 1.46 days. Among 395 children given a placebo, the mean number of days with fever was 0.78 with a standard deviation of 1.08 days. Use a 0.05 significance level to test the claim that the herb affects the number of days with fever. Based on these results, does the herb appear to be effective? Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Let population 1 be children treated with the herb. Question 1 Question 2 O Question 3 O Question 4 Identify the null and alternative hypotheses. OA. HO: My # H2 OB. HO: H1

H2 D. HO: H1 = H2 OE. HO: M1 = H2 OF. HO: H1 > H2 Hy: My # H2 Hy : My P2 H15P1P2 H11P1=P2 The test statistic is (Round to two decima places as needed.) KIN 200: Statistics for Health Sciences, Fall 2022 Jenna Maali 11/03/22 4:02 PM (? Homework: Unit 4 - Homework 1 (Chapter 9-2) Question 5, 9.2.8-T HW Score: 69%, 17.25 of 25 points Part 2 of 6 Points: 0 of 1 Save Question list K Treatment Sham Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) H2 group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples 13 13 selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. 0.56 0.37 Question 1 0.7' 1.08 Question 2 a. Use a 0.05 significance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment. What are the null and alternative hypotheses? Question 3 OA. HO: H1 # H2 OB. HO: M1 H 2 O Question 5 The test statistic, t, is . (Round to two decimal places as needed.) Question 6 O Question 7 O Question 8 O Question 9 O Question 10 Help me solve this View an example Get more help - Clear all Check answerTreatment Sham Question list K Researchers conducted a study to determine whether magnets are effective in treating back pain. The results are shown in the table for the treatment (with magnets) H1 group and the sham (or placebo) group. The results are a measure of reduction in back pain. Assume that the two samples are independent simple random samples 13 13 selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. 0.56 .37 Question 1 0.71 1.08 Question 2 Question 3 a. Use a 0.05 significance level to test the claim that those treated with magnets have a greater mean reduction in pain than those given a sham treatment. Question 4 What are the null and alternative hypotheses? OA. HO: My # H2 OB. HO: My

H2 The test statistic, t, is . (Round to two decimal places as needed.) O Question 7 O Question 8 O Question 9 Question 10 Help me solve this View an example Get more help - Clear all Check answerA person's body mass index (BMI) is computed by dividing the weight (kg) by the square of height (m). The accompanying table contains the BMI statistics for random samples of males and females. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Let population 1 be females. Complete parts (a) through ((2) below. @ Click the icon to view the table of statistics. a. Use a 0.05 signicance level to test the claim that females and males have the same mean BMI. Identify the null and alternative hypotheses. H0411 i6P2 H0411 =P2 v H03P1=P2 H1tu1=u2 H11u1P2 H03P1=P2 H13P1=P2 H15P1=P2 H11P1>P2 The test statistic is (Round to two decimal places as needed.) Listed below are the numbers of years that archbishops and monarchs in a certain country lived after their election or coronation. Treat the values as simple random samples from larger populations. Complete parts (a) and (b) below. All measurements are in years. @ Click the icon to view the table of longevities of archbishops and monarchs. a. Use a 0.05 signicance level to test the claim that the mean longevity for archbishops is less than the mean for monarchs after coronation. What are the null and alternative hypotheses? Assume that population 1 consists of the longevity of archbishops and population 2 consists of the longevity of monarchs. H03P1SP2 \"041175112 H11H1>P2 H15P1>l~l2 v H05P1=P2 H0411 =P2 H11P1