A. A left tailed hypothesis test with n > 30 and α = 2.5% will have...
A. A left tailed hypothesis test with n > 30 and α = 2.5% will have a critical value of?
B. A right tailed hypothesis test with n > 30 and α = 1% will have a critical value of ?
C. A hypothesis test with a test statistic of z = -1.89 and a critical value of z = - -1.345 will have a conclusion to ?
D. A hypothesis test with a critical value of z = 1.78 and a test statistic of z = 2.492 will have what conclusion?
Homework Answers
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A. A left tailed hypothesis test with n > 30 and α =
2.5% will have...
1.You are performing a left-tailed z-test If α=.005α=.005, and your test statistic is z=−2.59, do you:...
1.You are performing a left-tailed z-test If α=.005α=.005, and your test statistic is z=−2.59, do you: Reject Null Hypothesis Fail to Reject Null Hypothesis You are performing a left-tailed z-test If α=.10, and your test statistic isz=-2.01, do you: Reject Null Hypothesis Fail to Reject Null Hypothesis You are performing a right-tailed t-test with a sample size of 15 If α=.01, and your test statistic is t=3.02t=3.02, do you: Reject Null Hypothesis Fail to Reject Null Hypothesis You are performing...
You are performing a two-tailed test. If α = .004 , find the positive critical value,...
You are performing a two-tailed test. If α = .004 , find the positive critical value, to three decimal places. zα/2 = You are performing a left-tailed z-test If α=.025, and your test statistic is z=−1.75, do you: Reject Null Hypothesis Fail to Reject Null Hypothesis
Find the critical value for the indicated hypothesis test, then use this value and the provided...
Find the critical value for the indicated hypothesis test, then use this value and the provided information to make a conclusion about the null hypothesis (i.e., reject or fail to reject the null hypothesis). 1.The test statistic in a left-tailed test is z = −2.05; significance level α = 8% 2. Test at the significance level α = 5% the hypothesis H0: p ≤ 0.04, given that the test statistic is z = 1.82. 3. Test at the significance level...
1. Your hypothesis test for a proportion has a right-tailed critical region. The test statistic is...
1. Your hypothesis test for a proportion has a right-tailed critical region. The test statistic is zz = 1.84. Find the p-value accurate to 2 decimal places. p-value = 2. Your hypothesis test for a mean with n = 23 has a left-tailed critical region. The test statistic is tt = -1.4. Find the p-value accurate to 2 decimal places. p-value =
Calculate a critical z-score for a left-tailed, right-tailed, or two-tailed test.
How to Find a Critical Z Value LEARNING OBJECTIVE: Calculate a critical z-score for a left-tailed, right-tailed, or two-tailed test. Select the correct statement. a.) The critical z-score for a left-tailed test at a 12% significance level is -0.45. b.) The critical z-score for a right-tailed test at a 9% significance level is 1.34. c.) The critical z-score for a two-sided test at a 4% significance level is 1.75. d.) The critical z-score for a two-sided test at a 20% significance level is 0.85.
Consider the following situation. a right-tailed test with α = 0.1 Find the appropriate rejection regions....
Consider the following situation. a right-tailed test with α = 0.1 Find the appropriate rejection regions. (Round your answers to two decimal places. If the test is one-tailed, enter NONE for the unused region.) z > z < State your conclusion if the observed test statistic was z = 2.17. If appropriate, provide a measure of reliability for your conclusion. a. The null hypothesis is not rejected. b. The null hypothesis is rejected at the 0.1% level. c. The null...
(a) Draw a curve and label each part to reflect a left, right, or two-tailed test...
(a) Draw a curve and label each part to reflect a left, right, or two-tailed test (b) Claim: Show in symbols H0, Ha (c) Critical value- find the z0 or t0 values (d) What are the standardized test statistic z or t, and the P values from the calculator? (e) Comparing the critical values, α value, against the calculator results, state whether you reject, or fail to reject the null hypothesis (f) Interpret the decision in the context of the...
A 0.05 significance level is used for a hypothesis test of the claim that when parents...
A 0.05 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender selection, the proportion of baby girls is greater than 0.5. Assume that sample data consists of 78 girls in 144 births, so the sample statistic of StartFraction 13 Over 24 results in a z score that is 1 standard deviation above 0. Complete parts (a) through (h) below. a. Identify the null hypothesis and the alternative hypothesis. b....
A) A one-way ANOVA test: is a left-tailed test is a right-tailed test is a two-tailed...
A) A one-way ANOVA test: is a left-tailed test is a right-tailed test is a two-tailed test Can be either a right-tailed or a left-tailed test 1.B) The p-value of the ANOVA F test is a. Area below (left) the value of the test statistic of the corresponding F distribution b. Area above (right) the value of the test statistic of the corresponding F distribution c. Half of the area above (right) the value of the test statistic of the corresponding...
Determine the critical value for a left-tailed test of a population mean at the α =...
Determine the critical value for a left-tailed test of a population mean at the α = 0.05 level of significance based on a sample size of n = 35. A. 1.691 B. -2.728 C. 1.690 D. -1.691
How to Find a Critical Z Value LEARNING OBJECTIVE: Calculate a critical z-score for a left-tailed, right-tailed, or two-tailed test. Select the correct statement. a.) The critical z-score for a left-tailed test at a 12% significance level is -0.45. b.) The critical z-score for a right-tailed test at a 9% significance level is 1.34. c.) The critical z-score for a two-sided test at a 4% significance level is 1.75. d.) The critical z-score for a two-sided test at a 20% significance level is 0.85.
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