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- What are the null and alternative hypotheses? A. H0: The two variables, x and y, are associated. Ha: The two variables, x and y, are not associated. B. H0: The variable x is dependent upon y. Ha: The variable y is dependent upon x. C. H0: The two variables, x and y, are not associated. Ha: The two variables, x and y, are associated. The P-value is (Round to three decimal places as needed.) What is the conclusion of the independence test? A. Do not reject H0. The data provide sufficient evidence of an association. B. Reject H0. The data provide sufficient evidence of an association. C. Do not reject H0. The data do not provide sufficient evidence of an association. D. Reject H0. The data do not provide sufficient evidence of an association.Do the following for the case below. a. State the null and alternative hypotheses for a hypothesis test. b. Describe the two possible outcomes of the test, using the context of the given situation. The governor claims that the percentage of adults over 24 who have graduated from high school is greater than 75%, the national average. What is the null hypothesis? A. The percentage of adults over 24 who have graduated from high school is 75%. B. The percentage of adults over 24 who have graduated from high school is greater than 75%. C. The national average for the percentage of adults over 24 who have graduated from high school is 75%.The National Association of Realtors reported that 26% of home buyers in the state of Florida are foreigners in 2012. The correct hypothesis statement to test the validity of this report would be a. O b. O c. d. H0: p = 0.26; H1: p + 0.26. H0: p = 0.26; H1: p > 0.26. H0: p = 0.26; H1: p < 0.26. H0: p = 0.26; Hl: p = 0.26.
- Write the null and alternative hypotheses you would use to test each of the situations in parts (a) through (c). (a) A dictator is concerned about his "negatives," that is, the percentage of the country's residents who express disapproval of his job performance. His political committee pays for a series of TV ads, hoping that they can keep the negatives below 44%. They will use follow up polling to assess the ads' effectiveness. Let p be the proportion of the country's residents who express disapproval of the dictator's performance. Ho: P HA: P 0.44 0.44 (b) Is a ten-section spinner fair? Let p represent the probability of the spinner landing on any particular section. Ho: P HA P 1 10 Ho: P HAP 10 (c) Only about 19% of people who try to gain self-confidence succeed. Sellers of a motivational tape claim that listening to the recorded messages can help people succeed. Let p be the proportion of people who try to gain self-confidence and succeed. 0.19 0.19According to the Centers of Disease Control, about 21% of American young people between the ages of 12 and 19 are obese. A student claims that the students his local schools are in better shape than the national average, so their proportion of obese students is less than 21%. Which are the appropriate null and alternative hypotheses for this study? Họ: p = 21%, H1: p = 21% Ho: p × 0, Hq: p = 0 Họ: p = 21%, Hq: p > 21% Họ: p = 21%, H,: p < 21% Suppose tnat the result of the statistical is to fail to reject Ho. Which is the proper conclusion? O There is not sufficient evidence to conclude that the students at his local schools have a smaller true proportion of obese students. O There is sufficient evidence to conclude that the students his local schools have a smaller true proportion of obese students. O There is not sufficient evidence to conclude that the students at his local schools have a smaller sample proportion of obese students. O There is sufficient evidence to conclude that…I. Do the following: a. State the null and alternative hypotheses, identify which represents the claim, b. Determine when a type I or type Il error occurs for a hypothesis test of the claim. c. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Explain your reasoning. d. Explain how you should interpret a decision that rejects the null hypothesis. e. Explain how you should interpret a decision that fails to reject the null hypothesis. Problem An agricultural cooperative guarantees that the mean shelf life of a certain type of dried fruit is at least 400 days.
- Develop the analysis of variance computations for the following completely randomized design. At a = 0.05, is there a significant difference between the treatment means? 2 A 135 119 114 106 132 115 129 94 118 Treatment B 107 114 124 104 108 110 96 113 103 81 106 с 91 83 86 101 89 116 109 119 98 98 99 193.14 132.89 153.78I. Do the following:a. State the null and alternative hypotheses, identify which represents the claim,b. Determine when a type I or type II error occurs for a hypothesis test of the claim.c. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Explain your reasoning.d. Explain how you should interpret a decision that rejects the null hypothesis.e. Explain how you should interpret a decision that fails to reject the null hypothesis.ProblemAn agricultural cooperative guarantees that the mean shelf life of a certain type of dried fruit is at least 400 days.II. Conduct a hypothesis testA research center claims that less than 50% of senior high school students in public schools in the Philippines have accessed the Internet using cellular phones. In a random sample of 100 SHS students, 39% say they have accessed the Internet using cellular phones. At = 0.01, is there enough evidence to support the researcher’s claim?A golf instructor claims that more than 70% of his students have improved their driving distance by at least 20 yards after viewing and applying the techniques described in his instructional video. If 138 out of 180 viewers say that their driving distance has improved by at least 20 yards, is the instructor's claim valid? Identify the null and alternative hypotheses for this scenario. Is the instructor's claim that "more than 70% of his students have improved their driving distance by at least 20 yards," valid? Your response should include your decision and conclusion in context of the scenario.
- A college informs incoming students that the starting salary for a child clinical psychiatrist is $165,000. You think the college is truthful. Which is the null hypothesis?. HO: salary = $165,000 HO: Salary # $165,000State the null and alternative hypotheses for a hypothesis test fora. interaction.b. Factor A main effect.c. Factor B main effect.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 = P₂