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How many hours a week, on average, do twelfth grade students…
How many hours a week, on average, 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. b. The test statistic is 3.27, what is the p-value? c. In order to make an inference about the population, which assumption is necessary for the data to be representative of the population? 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? 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?
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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