What is the F test formula for comparing three or more means?
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Q: Based on a sample of 60 men, 35% owned cats Based on a sample of 20 women, 55% owned cats The test…
A: Men : N1 = 60 p1 = 35% = 0.35 n1 = p1*N1 = 0.35*60 = 21Women : N2 = 20 p2 = 55% = 0.55 n2 = p2 * N2…
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Q: Based on a sample of 60 men, 35% owned cats Based on a sample of 20 women, 55% owned cats The test…
A: First sample (Men), Number of men n1= 60Proportion of men who owned cats, 1=0.35Number of men who…
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What is the F test formula for comparing three or more means?
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- Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 297 of 850 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a = 0.1 level of significance. Because npo (1- Po) =L V 10, the sample size is V 5% of the population size, and the sample the requirements for testing the hypothesis V satisfied. (Round to one decimal place as needed.)Suppose we measure GPA for people in our class, we find the mean is 2.8 and the median is 3.2. What can you say is most likely true about GPAs in our class?For this hypothesis test do you think the results would have been different if the values had first been separated by the gender of the subject? For example, if instead you tested the claim that the mean weight of the population of all male adults is greater than 80 kg. Explain your answer.
- Twenty years ago, 57% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that 244 of 700 parents of children in h was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago? Use the a= 0.1 level of significance. Because npo (1-pPo) =U 10, the sample size is V 5% of the population size, and the sample the requirements for testing the hypothesis satisfied. (Round to one decimal place as needed.) What are the null and alternative hypotheses? V versus H,: Ho: (Type integers or decimals. Do not round.) Find the test statistic. Z, = (Round to two decimal places as needed.) Find the P-value. P-value = (Round to three decimal places as needed.) Determine the conclusion for this hypothesis test. Choose the correct answer below. O A. Since P-value a, reject the null hypothesis and…In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20 pounds. Suppose that last summer 71 out of a random sample of 86 guests did, in fact, catch northern pike weighing over 20 pounds. Does this indicate that the population proportion of guests who catch pike over 20 pounds is different from 75% (either higher or lower)? Use ? = 0.05. (a) What is the level of significance? State the null and alternate hypotheses. H0: p = 0.75; H1: p > 0.75H0: p ≠ 0.75; H1: p = 0.75 H0: p < 0.75; H1: p = 0.75H0: p = 0.75; H1: p ≠ 0.75H0: p = 0.75; H1: p < 0.75 (b) What sampling distribution will you use? The Student's t, since np > 5 and nq > 5.The standard normal, since np > 5 and nq > 5. The Student's t, since np < 5 and nq < 5.The standard normal, since np < 5 and nq < 5. What is the value of the sample test statistic? (Round your answer to two decimal places.) (c) Find the P-value of the test…You are testing the claim that the proportion of men who own cats is smaller than the proportion of women who own cats.You sample 190 men, and 71 own cats.You sample 130 women, and 114 own cats.Find the test statistic, rounded to two decimal places
- Describe the data that are collected for a repeated measures t-test and the hypotheses that the test evaluates.How can compute the mean of the success conditions by multiplying each success mean by 0.5?Support for the U.S. death penalty for convicted murderers was 63% in 2014 (Gallup poll results 2018). In a recent survey of 150 randomly selected U.S. adults, 75 said they were in favor of the death penalty for those convicted of murder. Does this sample appear to come from a population with a lower proportion in favor of the death penalty? d) Say that a = 0.05, what does this mean. Explain in the context of the problem. e) What would it mean to make a type II error? Explain in the context of this problem. f) Use a 0.05 significance level to test the claim. State your conclusion AND interpret your results.
- What is t critical for a study that contains 9 participants in one group and 11 is another group? Input three decimals. Answer:You are testing the claim that the proportion of men who own cats is smaller than the proportion of women who own cats.You sample 90 men, and 80% own cats.You sample 110 women, and 70% own cats. test statistic = [three decimal accuracy]How do you test hypotheses with T-tests?