If the test stat, t = 2.10 then we fail to reject the null that the population correlation coefficient is equal to zero (n = 6, alpha = 0.05).
True or false
If the test stat, t = 2.10 then we fail to reject the null that the...
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
A Type II error occurs in hypothesis testing when we _____________________________. fail to reject the null hypothesis and the null hypothesis is not true reject the null hypothesis and the null hypothesis is true fail to reject the alternative hypothesis and the alternative hypothesis is not true reject the alternative hypothesis and the alternative hypothesis is true
In a hypothesis test, α is the probability that we fail to reject Ho when Ho is false. True or false?
One tailed t-test O One tailed z-test Question 14 4 pts Which of the following statements most adequately summarizes the conclusion statement resulting from a p-value of 0.03? O We fail to reject the null hypothesis at the alpha level 0.1 We reject the null hypothesis at the alpha level of 0.05 We reject the null hypothesis at the alpha level of 0.01 O We fail to reject the null hypothesis at the alpha level 0.05 Question 15 4 pts
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.
1. Conduct a test of the null hypothesis that the mean height for all students in the Census at School database is equal to 155 cm vs the alternative that the mean Height is greater than 155 cm. Use a significance level of 0.05. a. State the null and alternative hypotheses. Ho: m = 155 Ha: m > 155 b. Provide the Statcrunch output table. Hypothesis test results: Variable Sample Mean Std. Err. DF T-Stat P-value Height 159.86 1.7311103 49...
O A. Because the p-value is less than a, we reject the null hypothesis and conclude that the average det load is equal to $17,000 O B. Because the p-vakus is greafer than a we fail to reject the nu ○ C. Because the p-value is greater than a we fail to reject the nul hypothesis and cannot co clude that he OD. Because the pvalue is lesse an Suppose that the Department of Education would like to test the...
QUESTION 1 A type Il error occurs if we fail to reject the null hypothesis when it is false. True False QUESTION 2
Question 15 This distribution is used for confidence intervals with large samples. χ² Z T F Question 16 You can reject a null hypothesis at the .01 alpha level and fail to reject it at the .05 alpha level. True False Question 17 When nominal data are categorized, no overlapping can occur. We refer to these categories as being what? fill in the blank Question 18 Explain the difference between interval and ratio level data in your own words. Provide...
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