(a) Find the P - value for the test statistic z=1.36 for the following null and alternative hypotheses:
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(a) Find the P - value for the test statistic z=1.36 for the following null and alternative hypotheses:
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- Let’s say your grandfather is 72 years old and your question is “Are my classmates’ grandfathers, on average, older than mine is”? What would be the null and alternative hypotheses in this scenario? Group of answer choices H0 : The population average age is less than 72. Ha : The population average age is greater than or equal to 72. The population average age is greater than 72. Ha : The population average age is less than 72. H0 : The population average age is equal to 72. Ha : The population average age is less than 72. H0 : The population average age is equal to 72. Ha : The population average age is greater than 72.Write the null and alternative hypotheses you would use to test the following situations. In the 1950s, only 40% of high school graduates went to college. Has the percentage changed? 20% of cars of a certain model have needed costly transmission work after being driven between 50,000 and 100,000 miles. The manufacturer hopes that redesign of a transmission component has reduced the failure rate. We field test a new flavor soft drink, planning to market it only if we are sure that more than 60% of people like the flavor.A test of Ho: p = 0.5 versus Ha: p > 0.5 has a test statistic of z = 2.19. What is the P-value for the test? If the alternative hypothesis were Ha: p ≠≠0.5, what would be the value of the P-value?
- A dental assistant is interested in the proportion of patients that need a root canal. Let the proportion of patients that need a root canal be p. If the dental assistant wanted to know if the proportion of patients that need a root canal is more than 20%, what are the null and alternative hypotheses? Select the correct answer below: H0: p=0.20; Ha: p<0.20 H0: p>0.20; Ha: p=0.20 H0: p=0.20; Ha: p>0.20 H0: μ=0.20; Ha: μ>0.20At a manufacturing company, the percent of defective items produced on the assembly line is 2%. The company is testing a new assembly line designed to reduce the percent of defective parts. The null and alternative hypotheses of the test are described as follows. H0:The percent of defective parts is at least 2%.Ha:The percent of defective parts is less than 2%. H0:The percent of defective parts is at least 2%.Ha:The percent of defective parts is less than 2%. Which of the following describes a Type IIII error that could result from the test?At a manufacturing company, the percent of defective items produced on the assembly line is 2%. The company is testing a new assembly line designed to reduce the percent of defective parts. The null and alternative hypotheses of the test are described as follows. H0:The percent of defective parts is at least 2%.Ha:The percent of defective parts is less than 2%.H0:The percent of defective parts is at least 2%.Ha:The percent of defective parts is less than 2%. Which of the following describes a Type IIII error that could result from the test? The test does not provide convincing evidence that the percent is less than 2%, but the actual percent is 3%. A The test does not provide convincing evidence that the percent is less than 2%, but the actual percent is 2%. B The test does not provide convincing evidence that the percent is less than 2%, but the actual percent is 1%. C The test provides convincing evidence that the percent is less than 2%, but the…
