The national rate of breast cancer among women aged50-54 is 221 per 100,000. #Based on data from asingle large hospital, a research team suspects thatwomen #taking hormone - replacement therapy couldhave a rate of at least 275 per 100,000. Using R Code:Calculate the sample size required to measure an effectof at least this #magnitude with 80% power. Defendyour choice of a one-sided or two-sided test. . Repeatquestion 8, this time testing the hypothesis that womentaking #hormonereplacement therapy have a rate of atleast 300, 350, and 400 per #100,000. Using theresults from questions and, create a plot withhypothesized rate #on the x-axis and required samplesize on the y-axis. From this plot, state a general rulebetween the required sample size and the effect sizebeing tested. State this rule in a way that could beunderstood by a non-expert.

This code requires to calculate the sample size for effect sizes of 275, 300, 350, and 400 per…

Answered: The national rate of breast cancer…

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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Describe one of the two scenarios in which a related samples t-test is the appropriate test of significance to conduct?
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Table 1 summarizes the demographic and baseline data. Since two independent groups were included, the baseline data between these two groups were compared and p values were included in this table. Please tell which specific statistical test was used for the comparison between age and sex. Your answer should be as specific as possible. For example, was the test two-sided or one-sided? Was the test for paired samples or not?
A physical therapist believes that men have higher blood pressure than women. He collected the blood pressure samples from 21 men and 21 women.Male: Mean: 106 Std. Dev: 10 N = 21 Female: Mean: 108 Std. Dev: 6 N = 21 A). What is the type of test you will use? (z-test, single-sample t-test, paired-samples t-test, or independent samples t-test) and why (what information provided in the problem) B). What are the hypotheses (Be Specific)
Question 3 > A comparison between species: Biologists wish to compare the prevalence of a genetic mutation across two species of Neema Toads. In a sample of 7 Neema Toads of Species I, 1.4% had the mutation while in a sample of 14 Neema Toads of Species II, 1.9% showed the mutation. Is there significant evidence to suggest a difference in the prevalence of the mutation across the two species? Conduct a hypothesis test at a significance level of a = 0.01. a) The hypotheses for this test are: O Ho: Pi - Pil = 0 Ha: Pi-Pil ≈ 0 O Ho: Pl - Pll = 0 Ha: Pi - Pll 0 O Ho: Pll = 0.014 H₂: P = 0.014 What is the test statistic for this test? test statistic = (Report answer accurate to 2 decimal places.) What is the p-value for this test? p-value = (Report answer accurate to 4 decimal places.) The decision reached is O Fail to reject Ho O Reject Ho and accept Ha As such, the final conclusion is that O The prevalence of the mutation is the same for both species. O There is not significant evidence…
Above Answer is Wrong, Please Help!
A researcher hypothesizes that the regions in the US feel differently about Hip Hop Music. To test this claim, she took a random sample of 15 people (n = 15, N = 75) from each of 5 US regions (G = 5), and she asked each person in that sample to rate (from 1 to 16) how much they liked Hop Hop. The following ANOVA table has some of her results. Please help her answer her research questions by completing the following ANOVA table below and answering the follow-up questions. Be sure to label your answers with the appropriate letter. Source Sums of Squares DF Mean Square F Effect (between) a) b) e) g) Error (within) 100.71 c) f) - Total 156.25 d) - - h) Based on the observed F-statistic (α = 0.05) and a critical F = 2.47, should she retain or reject the null hypothesis? i) In everyday language, what can she conclude about the research question? j) Suppose that the average love of Hip Hop in the West was 11.56 and the average love in the…
A sample of 15 small bags of the same brand of candies was selected. Assume that the population distribution of bag weights is normal. The weight of each bag was then recorded. The mean weight was 2 ounces with a standard deviation of 0.12 ounces. The population standard deviation is known to be 0.1 ounce. NOTE: If you are using a Student's t-distribution, you may assume that the underlying population is normally distributed. (In general, you must first prove that assumption, though.)
Based on information from a large insurance company, 66% of all damage liability claims are made by single people under the age of 25. A random sample of 51 claims showed that 43 were made by single people under the age of 25. Does this indicate that the insurance claims of single people under the age of 25 is higher than the national percent reported by the large insurance company? Give the test statistic and your conclusion.
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