
9.Compute the value of the test statistic for testing H0: ? = 30 vs. Ha: ? > 30, based on the information ? = 2.53, n = 32, x = 30.2, s = 2.58.
a. 0.08
b. 0.44
c. 0.45
d. 2.48
e. 2.53
9.Compute the value of the test statistic for testing H0: ? = 30 vs. Ha: ?...
Compute the value of the test statistic for testing H0: μ = 30 vs. Ha: μ > 30, based on the information σ = 2.53, n = 32, LaTeX: \bar{x}x ¯= 30.2, s = 2.58. a) 2.536 b) 0.439 c) 2.488 d) 0.447 e) 0.089
Compute the value of the test statistic for testing H0: μ ≤ 30 vs. Ha: μ > 30, where the true standard deviation is 2.53. You have 32 observations of data in which the mean is 30 and the standard deviation is 2.58.
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Question 1 1 pts Compute the value of the test statistic for testing Ho: -30 vs. H: > 30, based on the information -2.53, n-32, = 30.2, 5 - 2.58. 2.536 2.488 0.089 0.447 0439
2. If the test statistic for testing H0: µ≤ 10 vs. HA: µ > 10 at the .05 level is 1.641 and the sample size is 20, which of the following is true concerning the correct decision for the test, assuming that σ is unknown? A Type I error is possible A Type II error is possible Either a type I or II error is possible No error is possible 3. p-value for the test statistic
In testing H0: μ = 10 vs Ha: μ 6= 10, we find the test z-statistic is z(obs) = −2.5 Find the P-value of the test.
The one-sample t statistic for a test of H0: μ = 11 vs. Ha: μ < 11 based on n = 13 observations has the test statistic value of t = −1.25. What is the p-value for this test? a) 0.418 b) 0.882 c) 0.000 d) 0.118 e) 0.235
40. In testing H0: μ1 − μ2 = 5 vs. Ha: μ1 − μ2 > 5, the test statistic value z is found to be 1.69. What is the p-value of the test? A: 0.0910 B: 0.0455 C: 0.3023 D: 0.1977 41. When testing H0: μ1 − μ2 = 0 vs. H1: μ1 − μ2 < 0, the observed value of the z-score was found to be −2.15. What would the p-value for this test be? A: 0.0316 B: 0.0158...
#5. Compute the value of the test statistic for the indicated test, based on the information given. Testing H0:μ=72.2H0:μ=72.2 vs. Ha:μ>72.2Ha:μ>72.2, σ unknown, n = 55, x⎯⎯=75.1x-=75.1, s = 9.25 Testing H0:μ=58H0:μ=58 vs. Ha:μ>58Ha:μ>58, σ = 1.22, n = 40, x⎯⎯=58.5x-=58.5, s = 1.29 Testing H0:μ=−19.5H0:μ=−19.5 vs. Ha:μ<−19.5Ha:μ<−19.5, σ unknown, n = 30, x⎯⎯=−23.2x-=−23.2, s = 9.55 Testing H0:μ=805H0:μ=805 vs. Ha:μ≠805Ha:μ≠805, σ = 37.5, n = 75, x⎯⎯=818x-=818, s = 36.2
7. For any hypothesis test: b) Write down the appropriate alternative hypotheses and give the formula for the each test statistic, if any, for the following null hypothesis testing population normally distributed population not normal population not normal population not normal population normal population normal population not normal () Ho: So n 80, s 29 (iii) Ho: μ-Ha n-15, σ-25 (iv) Ho: μ=Ha n= 15, s = 36 (v) Ho: μ>Ha n= 10, σ = 16 (vi) H0'μ Han-60, σ-81...
For each of the following situations, calculate the p-value and determine if H0 is rejected at a 5% significance level with the test statistic, -1.75. All numbers should be reported to four decimal places. a) Consider a hypothesis test concerning a population mean with σ known and n = 500. (0.3 pts.) H0: μ = 693 Ha: μ < 693 p-value: ? Will H0 be rejected in part a)? b) Consider a hypothesis test concerning a population mean with σ...