Question 4 3 pts The Critical Value changes as we move from a two-tailed hypothes is...
Question 8 3 pts The a two-tailed hypothesis test Is related to a confidence interval at the same level of alpha. All of the answers are true. Is expressed in a probability framework with a chance of being wrong in our conclusion. Has an alternative hypothesis that uses Not Equal in the expression For this problem you will need a t-table. What is the t-value needed for the critical value for a one-tailed upper hypothesis test with a sample size...
Question 9 3 pts For this problem it would be helpful to have a standard normal table. What is the Z-value needed for the critical value for a one-tailed upper hypothesis test of a proportion with a sample size of 365 and alpha equal to 10? 1.28 2.33 1.645 O 1.96 Question 10 3 pts For this problem it would be helpful to have a standard normal table. What is the z-value needed for the critical value for a one-tailed...
Question 8 3 pts The p-value for a Hypothesis Test of a mean or proportion O All the answers are correct Is based on the probability of the test statistic on out in the relevant tail(s) of the distribution Is twice as large if it is a two-tailed test O is compared with alpha to make a conclusion in a hypothesis test Question 11 3 pts For this problem it would be helpful to have a standard normal table. What...
In a difference of proportion test with alpha = .05, the critical values(s) for a two-tailed test is/are -2.575 and 2.575 1.96 -1.645 and 1.645 -1.96 and 1.96 If the test statistic for a difference of means test has a p-value of .065, we could reject the Null Hypothesis at an alpha level of.10. True False
The Critical Value changes as we move from a two-tailed hypothesis test to a one-tailed test. Group of answer choices True False
Question 8 3 pts The standard error changes as we move from a two-tailed hypothesis test to a one-tailed test. O True O False
Question 4 3 pts The p-value for a Hypothesis Test of a mean or proportion Is compared with alpha to make a conclusion in a hypothesis test All the answers are correct Is twice as large if it is a two-tailed test Is based on the probability of the test statistic on out in the relevant tail(s) of the distribution
Question 21 3 pts Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the 2266 high school students surveyed, 970 admitted to smoking marijuana at least once. A study done 10 years earlier estimated that 45% of the students had tried marijuana. We want to conduct a hypothesis test to see if the true proportion of high school students who tried marijuana is now less than 45%. Use alpha = .01. What is the critical...
Read the z statistic from the normal distribution table and circle the correct answer. A one-tailed test (upper tail) at a 123 level of significance, a. 1.645 b. 1.54 C. 1.96 O d. 1.16 When the hypotheses Ho μ z 100 and Ha μ < 100 are being tested at a level of significance of o, the null hypothesis will be rejected if the test statistic z is a. -za O c. 100 For a one-tailed test (upper tail) with...
Question 20 3 pts Large Sample Proportion Problem. A survey was conducted on high school marijuana use. Of the 2266 high school students surveyed, 970 admitted to smoking marijuana at least once. A study done 10 years earlier estimated that 45% of the students had tried marijuana. We want to conduct a hypothesis test to see if the true proportion of high school students who tried marijuana is now less than 45%. Use alpha = .01. What is the critical...