. State the null and alternative hypotheses of the following situations. 2. A guidance conselor claims that at least 70% of the learners in their school have an above-average IQ. The administrator of the school says that it is too high of a claim. Null hypotheses (Statement form): Alternative hypotheses (Mathematical form):
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A. State the null and alternative hypotheses of the following situations.
2. A guidance conselor claims that at least 70% of the learners in their school have an above-average IQ. The administrator of the school says that it is too high of a claim.
- Null hypotheses (Statement form):
- Alternative hypotheses (Mathematical form):
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- A radio station states that 30% of the songs they play each week are from Canadian artists. A DJ working at the station claims that the actual percentage differs from what the station states. The DJ takes a random sample of 87 songs played during a given week and finds that 28 of them are from Canadian artists. Use this information to answer the questions below. a. Suppose the DJ wishes to perform a hypothesis test of his claim. Select the most appropriate null and alternative hypotheses for this hypothesis test. H0:p^≠0.3Ha:p^=0.3 H0:x―=0.3Ha:x―≠0.3 H0:μ≠0.3Ha:μ=0.3 H0:p=0.3Ha:p≠0.3 H0:μ=0.3Ha:μ≠0.3 H0:p≠0.3Ha:p=0.3 H0:p^=0.3Ha:p^≠0.3 H0:x―≠0.3Ha:x―=0.3 b. To assess his hypothesis, the DJ wants to compute a bootstrap-based confidence interval from his sample. Which of the following uses of the quantile() function would produce the correct interval bounds for a 96% bootstrap-based confidence interval? c(quantile(B$mean, 0.04), quantile(B$mean, 0.96)) c(quantile(B$mean, 0.02),…State the null and alternative hypotheses. The proportion of female students (1) is different than the proportion of male students (2). Ho: P₁ = P₂ H₁: P₁ P₂ Ho: P₁ P2 H₁: P₁ P₂ Ho: P₁ P₂ H₁: P₁ P₂ Ho: P₁ P2 H₁: P₁ = P₂2. Use the following scenario to conduct a hypothesis test. Then use that to answer questions a- g. You would like to determine if the use of a new teaching intervention helps to improve attention in 5- year-old boys. To test this hypothesis, you have separated 35 5-year-old boys into two groups, one with the intervention (treatment group) and the other given normal class time (the control group). You would like to test if the treatment group had longer attention times (in minutes) than the control group. (The significance level of the test is .05) The following are the data for the two groups: Control Group (Group 1) 7 11 6 6 8. 11 14 7 8. 2 Treatment Group (Group 2) 11 12 14 16 18 14 11 8 7 10 11 Answer the following questions to run the hypothesis test. You should use the notation and methods described in the course: a. What test should you run? b. What is the null hypothesis in sentences and symbols? c. What is the alternative hypothesis in sentences and symbols? d. What is the…
- Which of the following is NOT one of the steps for hypothesis testing? a. Verify data conditions and calculate a test statistic. O b. Assuming the alternative hypothesis is true, find the p-value. O c. Determine the null and alternative hypotheses. O d. Assuming the null hypothesis is true, find the p-value.......... is a theory based on insufficient evidence that requires further testing to prove whether the observed data false . Select one : a . Hypothesis b . All the above points c . Variables d . Null HypothesisLet’s say Mrs. Smith was 72 inches tall, and her question was “Are my students, on average, shorter than I am?”. What would be the null and alternative hypotheses in this scenario? A. Ho: The population average height is less than 72”. Ha: The population average height is greater than or equal to 72”. B. Ho: The population average height is greater than or equal to 72”. Ha: The population average height is less than 72”. C. Ho: The population average height is less than or equal to 72”. Ha: The population average height is greater than 72”. D. Ho: The population average height is greater than 72”. Ha: The population average height is less than 72”.
- #11). Both pictures are the same question. Need help with it.State the alternative hypotheses for the following claim: Although Americans account for only 4% of the world population, they account for 35% of the world’s suicide with a firearm. State the alternative hypotheses for the following claim: Although Americans account for only 4% of the world population, they account for 35% of the world’s suicide with a firearm. p ≠ .35 p = .35 p ≥ .35 p < .35Symbolically state the alternative hypotheses for the following claim: The mean salary for registered nurses in San Diego, California is greater than is $104,000.
- A. State the null and alternative hypotheses of the following situations. 1. A nurses union claims that the average monthly salary for fresh graduate nurses in the region is 20,000, but some associations believe this is not true. Null hypotheses: Alternative hypotheses:What are the null and alternative hypotheses? A.H0: The racial distribution is the same in at least two of the four regions. Ha: The racial distribution is not the same in at least two of the four regions. B. H0: The racial distribution is the same in each of the four regions. Ha: The racial distribution is not the same in each of the four regions. C. H0:The racial distribution is not the same in each of the four regions. Ha:The racial distribution is the same in each of the four regions. D. H0: The racial distribution is not the same in at least two of the four regions. Ha: The racial distribution is the same in at least two of the four regions. Find the test statistic. χ2= (Round to three decimal places as needed.) Find the P-value. P= (Round to three decimal places as needed.) Choose the correct conclusion below. A. Do not reject H0. The data do not provide sufficient evidence that there is a difference. B. Do not reject…
