In a test of H 0: p = 0.45 versus Ha: p < 0.45, the value of the z test statistic was calculated to be z = -0.55 .. Which of the following is the P-value for this test?
a. |
0.2360 |
|
b. |
0.2912 |
|
c. |
0.3020 |
|
d. |
0.1230 |
|
e. |
0.2500 |
In testing the hypotheses H0: p = 0.62 vs Ha: p not equals≠ 0.62, the test statistic is calculated to be z = 2.11. Which of the following is the correct p-value? A. 0.9862 B. 0.0348 C. 0.0174 D. 1.9652
In testing the hypotheses H0: p = 0.65 vs Ha: p =/= 0.65, the test statistic is calculated to be z = 2.07. Which of the following is the correct p-value?
Consider the following hypothesis test. H0: p = 0.45 Ha: p ≠ 0.45 A sample of 200 provided a sample proportion p = 0.443. (a) Compute the value of the test statistic. (b) What is the p-value? (c) At α = 0.05, what is your conclusion? (d) What is the rejection rule using the critical value? What is your conclusion?
In a test of hypothesis Ho: P = .31 versus Ha: P > .31 at the 1% level of significance a sample size of 1560 produced a p-hat(sample proportion) value of .34 and a test statistic z = 2.59. The p-value (observed significance level) of the test is about A 0.010 B 0.005 C 0.350 D 0.310 E 0.995
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?
Question 21 In testing Ho: p1" p,-0 versus Ha: p1" p. 0, the computed value of the test statistic is z = 2 25 The P value for this two-tailed test is then Not yet answered Points out of 6.00 Flag question Question 22 Not yet answered Points out of 4.00 The two-sample t test is applicable in situations in which population distributions are both normal when population variances have unknown values, and at least one of the two sample...
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...
Given Ha ≠ p0. What is the P-value if the test statistics is calculated to be z = -0.12? A) 0.90 B) 0.95 C) 0.12 D) 0.10 E) 0.05
For a test of H0: μ = 15 versus Ha: μ ̸= 15, the value of the test statistic is t = 3.472 based on a sample of 9 observations. Based on Table D, how would you express the P-value?
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