X Meme 1. Determine whether the hypothesis test involves a sampling distribution of means that is a normal distribution, Student t distribution, or neither. Claim: u = 107. Sample data: n = 17, = 101, s = 15.1. The sample data appear to come from a normally distributed population with unknown us and 2. Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support this claim. Use the correct symbol for the indicated parameter. The manufacturer of a refrigerator system for beer kegs produces refrigerators that are supposed to maintain a true mean temperature, u, of 48"F, ideal for a certain type of German pale lager. The owner of the brewery does not agree with the refrigerator manufacturer, and claims he can prove that the true mean temperature is incorrect. 3. Find the critical value or values of x2 based on the given information. HA: 0 > 3.5 n = 14 a = 0.05 4. If a significance level of 0.01 is used in testing the null hypothesis that o = 0.30 against the alternative that , based on a random sample of size n = 15, then the relevant tabled value is Find the critical value or values of x2 based on the given information, HA: o = 8.0n = 10 a = 0.01 6. Express the null hypothesis and the alternative hypothesis in symbolic form for a test to support this claim. Use the correct symbol for the indicated parameter. A researcher claims that the amounts of acetaminophen in a certain brand of cold tablets have a standard deviation different from the o = 3.3 mg claimed by the manufacturer. 7. The table shows the number satisfied in their work in a sample of working adults with a college education and in a sample of working adults without a college education. Assume that you plan to use a significance level of a = 0.05 to test the claim that Find the critical value(s) for this hypothesis test. Do the data provide sufficient evidence that a greater proportion of those with a college education are satisfied in their work? 8. T/f The level of significance for a hypothesis test is the probability of accepting the null hypothesis when it is false 9. Use the given data to find the minimum sample size required to estimate the population proportion. Margin of error: 0.09; confidence level: 99%; nothing is known about p. 10. Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. When 328 college students are randomly selected and surveyed, it is found that 122 own a car. Find a 99% confidence interval for the true proportion of all college students who own a car. 11. Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. Of 380 randomly selected medical students, 21 said that they planned to work in a rural community. Find a 95% confidence interval for the true proportion of all medical students who plan to work in a rural community. 12. Which of the following is a possible null hypothesis for a two-tailed hypothesis test? Group of answer choices: u = 30, u = 30, x = 30, H 2 30 OOO