1. A right tailed hypothesis test with a sample size of n = 56 and α...

1. A right tailed hypothesis test with a sample size of n = 56 and α = 2.5% will have a critical value of ___________?

2. A left tailed hypothesis test with n = 75 and α = 5% will have a critical value of _________.?

3. The conclusion for a hypothesis test that has a test statistic of 2.12 and a critical value of 1.96 will be?

4. The conclusion for a hypothesis test with a test statistic of -1.43 and a critical value of -1.645 will be?

Expert Solution

orchestra answered 2 years ago

You are performing a right-tailed t-test with a sample size of 33 If α=.025 , find...

You are performing a right-tailed t-test with a sample size of 33 If α=.025 , find the critical value, to two decimal places.

A random sample of size n is to be used to test the null hypothesis that...

A random sample of size n is to be used to test the null hypothesis that the parameter θ of an exponential population equals θ0 against the alternative that is does not equal θ0. (a) Find an expression for the likelihood ratio statistic. (b) Use the result in part (a) to show that the critical region of the likelihood ratio can be written as ye¯ −y/θ ¯ 0 ≤ K? .

While conducting a 1 tailed hypothesis test, you found that the p-value is 0.016. If α...

While conducting a 1 tailed hypothesis test, you found that the p-value is 0.016. If α = 1%, what would your decision be? Question 10 0 out of 6 points The average SAT score of students at NYU is 1340. Professor Mazza believes it is higher. What is the alternative hypothesis? Question 11 0 out of 6 points The average amount of time that students spend studying is 280 minutes per week with a standard deviation of 22 minutes. Dr....

The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or...

The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed and indicate the parameter(s) being tested. a.) ?0: ?1 = ?2 ?? ?1: ?1 > ?2 b.) ?0: ? = 8.6 ?? ?1: ? > 8.6

For Exercises find the critical value from Table L for the rank correlation coefficient, given sample size n and a. Assume that the test is two-tailed. n = 14, α = 0.01

For Exercises find the critical value from Table L for the rank correlation coefficient, given sample size n and a. Assume that the test is two-tailed.n = 14, α = 0.01

For Exercises find the critical value from Table L for the rank correlation coefficient, given sample size n and a. Assume that the test is two-tailed. n = 28, α = 0.02

A two-tailed hypothesis test is being used to evaluate a treatment effect with α = 0.05....

A two-tailed hypothesis test is being used to evaluate a treatment effect with α = 0.05. If the sample data produce a z-score of z = -2.0, then what is the correct decision? A.Reject the null hypothesis and conclude that the treatment has no effect B.Reject the null hypothesis and conclude that the treatment has an effect C.Fail to reject the null hypothesis and conclude that the treatment has no effect D.Fail to reject the null hypothesis and conclude that...

Find the critical value for a right-tailed test with a=0.01 and n=75.

The test statistic of a two-tailed t-test for a sample size of 12 was found to...

The test statistic of a two-tailed t-test for a sample size of 12 was found to be 2.1. At a significance level of α = 0.05 ,which of the following statements is correct? Group of answer choices a.The P-value is smaller than 0.05 b.We fail to reject the Null hypothesis c.The test statistic is in the critical region d.The alternative hypothesis is H1: A market researcher wants to estimate the proportion of households in the Bay Area who order food...

In a two-tailed test for correlation at α = .05, a sample correlation coefficient r =...

In a two-tailed test for correlation at α = .05, a sample correlation coefficient r = 0.42 with n = 25 is significantly different than zero. True or False

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