2. Monosodium Glutamate (MSG) had been considered to induce obesity in rodents and mice. In line with this, a study was conductedto determine the effect of the amount of MSG in the body-weight of mouse. A total of 14 experimental mice were used in the study.The first set of seven mice received an amount of 5 mg MSG/body-weight while the other set of seven mice received an amount of 15mg MSG/body-weight of MSG. The initial weight of mice and weight two weeks after injection of MSG were observed. The observationsare summarized in the tables below.Table 1. Weights of Mice Injected with 5 mgMSG/body-weight Amount of MSGBody-WeightWeek 229.127.22Table 2. Weights of Mice injected with 15 mg MSG/body-weight Amount of MSGBody-WeightWeek 2No.No.Week 0Week 018.1819.211120.1127.16219.0326.07319.2328.19318.8929.1220.0129.0218.9827.1220.1927.4320.0426.1219.8032.1729.1230.12621.31719.28719.1826.12Objective 1. to determine whether there is a significant difference in the mice weight two weeks after receiving 5 mg MSG/body-weight. Use 5% level of significance.Test for the homogeneity of variance (if necessary) use 5% level of significance:a. Ho:Ha:b. level of significance:c. Decision Ruletail of distribution:test-statistic:d. Computatione. Decisionf. Conclusiona. Ho:b. level of significance:c. Decision RuleНа:tail of distribution:test-statistic:d. Computatione. Decisionf. Conclusion Objective 2.2. to determine whether there is a significant difference between the Week 2 weights of mice among the two differentamounts of MSG. Use 1% level of significance.Test for the homogeneity of variance (if necessary) use 1% level of significance:a. Ho:Ha:b. level of significance:test-statistic:tail of distribution:c. Decision Ruled. Computatione. Decisionf. Conclusionа. Но:На:b. level of significance:test-statistic:tail of distribution:c. Decision Ruled. Computatione. Decisionf. Conclusion

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Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Suppose a researcher is interested inthe effectiveness in a new childhood exercise program implemented in a SRS of schools across a particular county. In order to test the hypothesis that the new program decreases BMI (Kg/m2), the researcher takes a SRS of children from schools where the program is employed and a SRS from schools that do not employ the program and compares the results. Assume the following table represents the SRSs of students and their BMIs. Student intervention group BMI (kg/m2) Student control group BMI (kg/m2) A 18.6 A 21.6 B 18.2 B 18.9 C 19.5 C 19.4 D 18.9 D 22.6 E 24.1 F 23.6 A) Assuming that all the necessary conditions are met (normality, independence, etc.) carry out the appropriate statistical test to determine if the new exercise program is effective. Use an alpha level of 0.05. Do not assume equal variances.B) Construct a 95% confidence interval about your estimate for the average difference in BMI between the groups.
An experiment to determine if a migraine medication decreases a person's average number of monthly migraines is performed on 400 people who report they have several migraines a month. Researchers randomly assigned 200 people to the treatment group and 200 people to the control group. After the study, the researchers determined that 48 of the subjects in the treatment group and 28 of the subjects in the control group average fewer migraines per month. The data from the two groups are resampled 150 times, and the table shows the distribution of the differences of the proportions for the reconfigured treatment and control groups.
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A doctor would like to evaluate whether flu-frequency is different among patients of various ages. He groups his most recent 12 patients into four groups according to age (pediatric, young adult, older adult, senior), and counts the frequency of their flu-related visits. Below is his data. Test the hypothesis that flu frequency is different among pediatric, adult, older adult, and senior patients using an alpha level of .01. Pediatric. Young Adult. Older Adult. Senior 6 2 4 7 4 1 0 9 5 0 0 12 g. What does your decision mean? h. Paste your SPSS output here: i. Explain how the Sig. value in your SPSS output leads you to…
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A well-known study of 22,000 male physicians was conducted to determine if taking aspirin daily reduces the chances of a heart attack. Half of the physicians were given a regular dose of aspirin while the other half was given placebos. Six years later, among those who took aspirin, 104 suffered heart attacks while among those who took placebos, 189 suffered heart attacks. Does it appear that the aspirin can reduce the number of heart attacks among the sample group that took aspirin? Use α = 0.05.
A doctor would like to evaluate whether flu-frequency is different among patients of various ages. He groups his most recent 12 patients into four groups according to age (pediatric, young adult, older adult, senior), and counts the frequency of their flu-related visits. Below is his data. Test the hypothesis that flu frequency is different among pediatric, adult, older adult, and senior patients using an alpha level of .01. Pediatric. Young Adult. Older Adult. Senior 6 2 4 7 4 1 0 9 5 0 0 12 a. What test is appropriate? b. State your null hypothesis: c. State your alternative hypothesis. d. Find the critical value:…

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