What are we stating if we reject the null hypothesis is an independent samples t-test?
What are we stating if we reject the null hypothesis is an independent samples t-test?
Homework Answers
Answer:
If we reject the null hypothesis of an independent samples t test for the difference between two population means, this means, there is not sufficient evidence to conclude that two population means are same. Alternatively we cannot conclude that there is no significant difference between the two population means. This means, we conclude that there is significant difference between the two population means.
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What are we stating if we reject the null hypothesis is an
independent samples t-test?
please help with t test snd hypothesesis If we reject a null hypothesis at the 1%...
please help with t test snd hypothesesis
If we reject a null hypothesis at the 1% significance level, then we have hypothesis is false. evidence that the null For this problem create your own t-test and state your null hypothesis, alternative hypothesis Draw out the normal distribution curve and the critical region. You can assume a two tail test. Label the critical region. strong weak non existent
what is the hypothesis for one-sample t test, dependent samples t test, independent samples t test.
what is the hypothesis for one-sample t test, dependent samples t test, independent samples t test.
What is the test statistic? t= ? and do we reject or not?? Independent random samples...
What is the test statistic?
t= ? and do we reject or not??
Independent random samples from normal populations produced the results shown in the table to the right. Complete parts a through d below Sample 1 Sample 2 1.4 3.9 1.6 2.8 1.7 3.7 2.1 3.5 2.4 a. Calculate the pooled estimate of o. 0.1913 (Round to four decimal places as needed.) b. Do the data provide sufficient evidence to indicate that u>u,? Test using a = 0.10. What...
Suppose we do not reject the t-test null hypothesis of H0: β1 = 0 for a...
Suppose we do not reject the t-test null hypothesis of H0: β1 = 0 for a regression. In this case, we think there is evidence that the X variable values help explain the Y variable values. True or False
The null hypothesis in an independent-samples t-test would be stated as which of the following: (A)...
The null hypothesis in an independent-samples t-test would be stated as which of the following: (A) The mean of the sample is equal to the mean of the population. (B) The mean of sample 1 is equal to the mean of sample 2. (C) The mean of sample 1 is not equal to the mean of sample 2. (D) The mean of the sample is not equal to the mean of the population
QUESTION 11 You run an independent samples t-test between two groups, and find a t-statistic of...
QUESTION 11 You run an independent samples t-test between two groups, and find a t-statistic of t=1.67. Is this sufficient to reject the null hypothesis? Assume α=0.05 and a one-sided test. Yes, > 1.67 is sufficient to reject the null. No, > 1.67 is not sufficient to reject the null. Not enough information. 2 points QUESTION 12 In a dependent samples t-test, the sample sizes must be equal. True False 2 points QUESTION 13 In an independent samples...
come from populations (1 point) Test t mean. Assume that the samples are independent simple random samples. Use a significance level of a 0.01 Sample 1: n1 15, 1-28.4, 81-6.07 Sample 2: n2 10, 2 22,...
come from populations (1 point) Test t mean. Assume that the samples are independent simple random samples. Use a significance level of a 0.01 Sample 1: n1 15, 1-28.4, 81-6.07 Sample 2: n2 10, 2 22, 82 8.92 (a) The degree of freedom is (b) The standardized test statistic is (c) The final conclusion is O A. We can reject the null hypothesis that (14-Ha) 0 and accept that (M1-μ2) 0 B. There is not sufficient evidence to reject the...
State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain....
State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain. (a) t = 2.203 (b) t = 0 (c) t = 2.113 (d) t = - 2.203 1 ro -4 to = 2.158 (a) For t = 2.203, should you reject or fail to reject the null hypothesis? A. Fail to reject Ho, because t> 2.158. B. Reject Ho, because t> 2.158. C. Fail to reject Ho, because t< 2.158. D. Reject Ho, because...
Regarding the null hypothesis, what would be the decision made for a t-test of ‘no difference’...
Regarding the null hypothesis, what would be the decision made for a t-test of ‘no difference’ that returns a p-value of 0.000? Assume an alpha value of 0.05. A). Fail to reject the null hypothesis. B) Reject the null hypothesis.
State whether the standardized test statistic t indicates that you should reject the null hypothesis Explain...
State whether the standardized test statistic t indicates that you should reject the null hypothesis Explain (a)t 1.848 (b) t 0 (c)t 1.781 (d)t -1863 .4 (c) For t -1.781, should you reject or fail to reject the null hypothesis? O A. Reject Ho, because t 1.804 O B. Fail to reject Ho, because t> 1.804 O C. Reject Ho, because t< 1.804 O D. Fail to reject Ho. because t-1.804 (d) For t -1.863, should you reject or fail...
please help with t test snd hypothesesis
If we reject a null hypothesis at the 1% significance level, then we have hypothesis is false. evidence that the null For this problem create your own t-test and state your null hypothesis, alternative hypothesis Draw out the normal distribution curve and the critical region. You can assume a two tail test. Label the critical region. strong weak non existent
What is the test statistic?
t= ? and do we reject or not??
Independent random samples from normal populations produced the results shown in the table to the right. Complete parts a through d below Sample 1 Sample 2 1.4 3.9 1.6 2.8 1.7 3.7 2.1 3.5 2.4 a. Calculate the pooled estimate of o. 0.1913 (Round to four decimal places as needed.) b. Do the data provide sufficient evidence to indicate that u>u,? Test using a = 0.10. What...
come from populations (1 point) Test t mean. Assume that the samples are independent simple random samples. Use a significance level of a 0.01 Sample 1: n1 15, 1-28.4, 81-6.07 Sample 2: n2 10, 2 22, 82 8.92 (a) The degree of freedom is (b) The standardized test statistic is (c) The final conclusion is O A. We can reject the null hypothesis that (14-Ha) 0 and accept that (M1-μ2) 0 B. There is not sufficient evidence to reject the...
State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain. (a) t = 2.203 (b) t = 0 (c) t = 2.113 (d) t = - 2.203 1 ro -4 to = 2.158 (a) For t = 2.203, should you reject or fail to reject the null hypothesis? A. Fail to reject Ho, because t> 2.158. B. Reject Ho, because t> 2.158. C. Fail to reject Ho, because t< 2.158. D. Reject Ho, because...
State whether the standardized test statistic t indicates that you should reject the null hypothesis Explain (a)t 1.848 (b) t 0 (c)t 1.781 (d)t -1863 .4 (c) For t -1.781, should you reject or fail to reject the null hypothesis? O A. Reject Ho, because t 1.804 O B. Fail to reject Ho, because t> 1.804 O C. Reject Ho, because t< 1.804 O D. Fail to reject Ho. because t-1.804 (d) For t -1.863, should you reject or fail...
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