Extracted text: 4. The effectiveness of the Weight Watchers diet is tested in an experiment, and for each subject, the weight before the diet and the weight after the diet are recorded. a. Claim: b. Hạ: C Analysis: d. Tail of the distribution: 5. The effectiveness of a flu vaccine is tested by treating one group of subjects with the vaccine while another group of subjects is given placebos. Is there a significant difference among the two groups? a. Claim: b. Hạ: c Analysis: d. Tail of the distribution: II. Solve the following problems: 1. A sample of size 78 produced the sample mean of 16.4. Assuming the population standard deviation 3.3, compute a 99% confidence interval for the population mean u. 2. In a study of factors affecting hypnotism, visual analogue scale (VAS) sensory ratings were obtained for 16 subjects. For these sample ratings, the mean is 8.33 while the standard deviation is 1.96 (based on data from "An Analysis of Factors That Contribute to the Efficacy of Hypnotic Analgesia," by Price and Barber, Journal of Abnormal Psychology, Vol. 96, No. 1). At 0.01 level of significance, test the claim that this sample comes from a population with a mean VAS rating of less than 10.00. a. Claim (in symbolic form): b. Ho: На: c level of significance: test-statistic tail of distribution: d. Decision Rule: Reject Ho if e. Computation f. Decision (Reject Ho or Failed to reject Ho) g. Conclusion
Extracted text: Directions: In a clean bond paper, write your name, course, year and section. Also, put your signature. Copy the questions and put your answer below it. After answering, take a picture of it, copy in Microsoft Word, then save as a pdf file. Make sure that only 1 pdf file is attached and turned in. I. Identify the claim in symbolic form, hypotheses in symbolic form, appropriate analysis, and the tail of the distribution for the following situation. For the appropriate analysis, choose among the following choices: • -Trest for one population mean • 2- Test for one population mean • -Test for two dependent population means For the tail of the distribution, choose among the following choices: 2-Test for two independent population means • -Test for two independent population mean • two-tailed • left-tailed • right-tailed 1. The attorney for the Food and Drug Administration claims that a Pharmaceutical Company makes cold caplets that contain amounts of acetaminophen with a mean different from the 650mg amount indicated on the label. a. Claim: b. Ho: Ha: C Analysis: d. Tail of the distribution: 2. The instructor claims that her student's mean score for the Final Term Examination is not lower than 50. a. Claim: b. Hạ: H: c Analysis: d. Tail of the distribution: 3. The effectiveness of Prilosec for treating heartburn is tested by measuring gastric acid secretion in patients before and after the drug treatment. Test if there is a decrease after in the gastric acid secretion after the drug treatment. a. Claim: b. Ho: C Analysis: d. Tail of the distribution: