For a certain hypothesis test, the hypothesis statements are: Ho: H1 – Hz = 3.14 На: M — Н2 + 3.14 Which set of statements best describes this test? Univariate Data, 1 Sample, One-tailed Univariate Data, 1 Sample, Two-tailed Univariate Data, 2 Sample, One-tailed Univariate Data, 2 Sample, Two-tailed Bivariate Data, 1 Sample, One-tailed Bivariate Data, 1 Sample, Two-tailed Bivariate Data, 2 Sample, One-tailed Bivariate Data, 2 Sample, Two-tailed
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- The critical boundaries for a hypothesis test are z = +1.96 and z = -1.96. If the z-score for the sample data is z = -1.90, which is the correct statistical decision? a. fail to reject H1 b. fail to reject H0 c. reject H0 d. reject H1When is a researcher at risk of making a Type II error? Group of answer choices: whenever H0 is rejected whenever H1 is rejected whenever H0 fails to be rejected The risk of a Type II error is independent of the decision from a hypothesis test.For a one-tailed hypothesis test, the critical z value of the test statistic is -2.33. Which of the following is true about the significance level and the rejection region for the hypothesis test? a. α = 0.05 for a left-tailed test b. α = 0.05 for an right-tailed test c. α = 0.01 for a left-tailed test d. α = 0.01 for an right-tailed test
- The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample data is z =-1.90, what is the correct statistical decision? Reject H0 Fail to reject H1 Reject H1 Fail to reject H0There are two major bookstores in a relatively large city. They constantly measure their performance relative to one another. The monthly sales receipts total $25,000 on average for Bookstore 1. Bookstore 2 is interested in knowing whether they have higher sales than their competition. The last 6 months of data from Bookstore 2 are given below. Month 1 2 3 4 5 6 Bookstore 2 $21,000 $12,000 $30,000 $17,000 $19,000 $30,000 a) Conduct an appropriate hypothesis test. Use the p-value method. b) Explain what a Type I Error would mean in this context (maximum 2 sentences). c) Explain what a Type II Error would mean in this context (maximum 2 sentences).For a one-tailed hypothesis test with α = .01 and a sample of n= 28 scores, the critical t value is either t = +2.473 or t= -2.473. True or False
- The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample data is z = 1.90, then what is the correct statistical decision? a. Fail to reject H1 b. Reject H1 c. Fail to reject H0 d. Reject HWhen is a researcher at risk of making a Type II error? a. whenever H1 is rejected b. whenever H0 fails to be rejected c. whenever H0 is rejected d. The risk of a Type II error is independent of the decision from a hypothesis test.For a two-tailed hypothesis test with α = .05 and a sample of n = 25 scores, the boundaries for the critical region are t = ±2.060. True False
- When is a researcher at risk of making a Type II error? a. whenever H0 is rejected b. whenever H1 is rejected c. whenever H0 fails to be rejected d. The risk of a Type II error is independent of the decision from a hypothesis test.The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample mean is zM = +2.20, what is the correct statistical decision?Misconceived hypotheses. What is wrong with each of the following hypothesis statements? H0: μ = 100 vs. Ha: μ ≠ 110 H0: x̄ = 100 vs. Ha: x̄ < 100 or could write as H0: x̄ >= 100 vs. Ha: x̄ < 100 H0: p^ = 0.50 vs. Ha: p^ ≠ 0.50