Question 21 In testing Ho: p1" p,-0 versus Ha: p1" p. 0, the computed value of...
6. Testing Ho : p = 0.75 versus Ha : p > 0.75 when the sample has n = 20, ˆp = 0.50. (a) Verify that the sample size is large (b) Find the standard error for ˆp (c) Find the value of the standardized z-test statistic
In a hypothesis testing problem a researcher wants to test the hypothesis Ho 20 versus Ha 20 A sample of size 100 yielded a sample mean x = 19.25 and a sample standard deviation s 2.5. The P-value for the above test is 0013 .5000 0026 0147 0294
In testing Ho: P1 - P2 - 0 versus HAP1-P20 You obtain a test statistic with a value of 2.18. What is the p-value? Include 4 decimal places in your answer.
Consider the hypothesis test below. Ho: P 1-2250 Ha: P 1-22 > 0 The following results are for independent samples taken from the two populations. Sample 1 Sample 2 ni = 200 n2 = 400 P1 = 0.26 P2 = 0.16 -a. What is the value of the test statistic (to 2 decimals)? b. What is the p-value (to 4 decimals)? c. With a = .05, what is your hypothesis testing conclusion? Select
1. Suppose a t-test of Ho = 0 versus H : 0 has a p-value= 0.068 (a) If 11.2, what is the p-value for a t-test of Ho : u = 0 versus Ha i > 0? Draw a picture to support your answer. (b) If 11.2, what is the p-value for a t-test of Ho Draw a picture to support your answer. 0 versus Ha u > 0?
Find the positive critical value for testing Ho: u = 17.55 versus Ha: # 17.55 at significance level 0.05 for a sample of size 30. Round your final answer to three decimal places.
could anyone help me those questions? Question 7 Not yet answered Points out of 1 P Flag question You are offered the following gamble: Flip two fair coins. If at least one head comes up, you win $12. If not, you lose $24. What is the expected value of this gamble? Select one: a. $3 c. $0 Question 8 Not yet answered Points out of 1 Suppose X is a random variable. How are the variance and standard deviation of...
A two-sample t test of the hypothesis HO: u1-u2=0 versus HA: u1-u2>0 produces a p-value of 0.03. Which of the following must be true? I. A 90 percent confidence interval for the difference in means will contain the value 0. II. A 95 percent confidence interval for the difference in means will contain the value 0. III. A 99 percent confidence interval for the difference in means will contain the value 0. a.) I only b.) III only c.) I...
We are interested in testing the following hypotheses. H0: P1- P2 ³ 0, Ha: P1- P2 < 0. The test statistic Z is computed to be 0.58. The p-value for this test is A. 0.2810 B. 0.7190 C. 0.5620 D. 0.5800