How many hours a week, on average, do twelfth grade students…

Questions

Hоw mаny hоurs а week, оn аverage, do twelfth grade students hang out with friends? You think it is around 5 hours a week, but your friend thinks it is different than that. A random sample of 18 twelfth grade students is taken. The sample mean is 9.28 hours with a sample standard deviation of 5.55 hours. A boxplot of the data does not show strong skewness or outliers. The hypotheses is as follows: : μ=5 : μ≠5 a. What is the parameter? Fill in the bank. , the hours a week twelfth grade students hang out with friends. [1] b. The test statistic is 3.27, what is the p-value? [2] c. In order to make an inference about the population, which assumption is necessary for the data to be representative of the population? [3] d. For this significance test, you reject Ho and find significant evidence that the true mean hours a week twelfth grade students hang out with friends is different than 5 hours. What type of error could you have made? [4] e. Given the following two statements: I. It was reasonable to use t procedures for this significance test. II. The 95% confidence interval for this data will not include 5 hours. Which of the statements are true? [5]

Hоw mаny hоurs а week, оn аverage, do twelfth grade students hang out with friends? You think it is around 5 hours a week, but your friend thinks it is different than that. A random sample of 18 twelfth grade students is taken. The sample mean is 9.28 hours with a sample standard deviation of 5.55 hours. A boxplot of the data does not show strong skewness or outliers. The hypotheses is as follows: : μ=5 : μ≠5 a. What is the parameter? Fill in the bank. , the hours a week twelfth grade students hang out with friends. [1] b. The test statistic is 3.27, what is the p-value? [2] c. In order to make an inference about the population, which assumption is necessary for the data to be representative of the population? [3] d. For this significance test, you reject Ho and find significant evidence that the true mean hours a week twelfth grade students hang out with friends is different than 5 hours. What type of error could you have made? [4] e. Given the following two statements: I. It was reasonable to use t procedures for this significance test. II. The 95% confidence interval for this data will not include 5 hours. Which of the statements are true? [5]

Hоw mаny hоurs а week, оn аverage, do twelfth grade students hang out with friends? You think it is around 5 hours a week, but your friend thinks it is different than that. A random sample of 18 twelfth grade students is taken. The sample mean is 9.28 hours with a sample standard deviation of 5.55 hours. A boxplot of the data does not show strong skewness or outliers. The hypotheses is as follows: : μ=5 : μ≠5 a. What is the parameter? Fill in the bank. , the hours a week twelfth grade students hang out with friends. [1] b. The test statistic is 3.27, what is the p-value? [2] c. In order to make an inference about the population, which assumption is necessary for the data to be representative of the population? [3] d. For this significance test, you reject Ho and find significant evidence that the true mean hours a week twelfth grade students hang out with friends is different than 5 hours. What type of error could you have made? [4] e. Given the following two statements: I. It was reasonable to use t procedures for this significance test. II. The 95% confidence interval for this data will not include 5 hours. Which of the statements are true? [5]

Hоw mаny hоurs а week, оn аverage, do twelfth grade students hang out with friends? You think it is around 5 hours a week, but your friend thinks it is different than that. A random sample of 18 twelfth grade students is taken. The sample mean is 9.28 hours with a sample standard deviation of 5.55 hours. A boxplot of the data does not show strong skewness or outliers. The hypotheses is as follows: : μ=5 : μ≠5 a. What is the parameter? Fill in the bank. , the hours a week twelfth grade students hang out with friends. [1] b. The test statistic is 3.27, what is the p-value? [2] c. In order to make an inference about the population, which assumption is necessary for the data to be representative of the population? [3] d. For this significance test, you reject Ho and find significant evidence that the true mean hours a week twelfth grade students hang out with friends is different than 5 hours. What type of error could you have made? [4] e. Given the following two statements: I. It was reasonable to use t procedures for this significance test. II. The 95% confidence interval for this data will not include 5 hours. Which of the statements are true? [5]

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