Chapter 10 Homework 0 Saved 7 9.09 points Refe re nces Exercise 10-9 (Algo) (LO10-6) Given the following hypotheses: H0:u510 H1:p>10 A random sample of10 observations is selected from a normal population. The sample mean was 19 and the sample standard deviation 3.4. Using the 0.05 significance level: a. State the decision rule. (Round your answer to 3 decimal places.) b. Compute the value of the test statistic. (Negative answers should be indicated by a minus sign. Round your answer to 3 decimal places.) c. What is your decision regarding the null hypothesis? Chapter 10 Homework 0 Saved Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate co Exercise 10-2 (Algo) (L010-5) 9.09 A sample of 38 observations is selected from a normal population. The sample mean is 18. and the population standard deviation is 3. points Conduct the following test of hypothesis using the 0.01 significance level. H0: [1 s 17 H1: [1 > 17 a. Is this a one or two-tailed test? One-tailed test 0 Twotailed test b. What is the decision rule? Reject H0 when z> 2.326 o Reject Ho when 25 2.326 c. What is the value of the test statistic? (Round your answer to 2 decimal places.) 0 Answer is complete and correct. 2.05 o d. What is your decision regarding H0? Fail to reject H0 0 Reject Ho e-1. What is the pvalue? (Round your answer to 4 decimal places.) 0 Answer is complete and correct. 0.0199 0 e-2. Interpret the pvalue? (Round your nal answer to 2 decimal places.) Chapter 10 Homework 0 Saved Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate co 5 9.09 A recent national survey found that high school students watched an average (mean) of 7.5 movies per month with a population points standard deviation of 0.6. The distribution of number of movies watched per month follows the normal distribution. A random sample of 42 college students revealed that the mean number of movies watched last month was 6.8. At the 0.05 signicance level, can we conclude that college students watch fewer movies a month than high school students? Exercise 10-7 (Algo) (LO10-5) a. State the null hypothesis and the alternate hypothesis. Ho: [1 2 7.5; H1: p. 7.5; H]: u = 7.5 Ho: [1 s 7.5; H1: p. > 7.5 b. State the decision rule. Reject H1 if z 1.645 Reject H1 if z > 1.645 Reject H0 if z