What is the critical t value (one sample t test) or a directional hypothesis with an...
What is the critical t value (one sample t-test) for a non directional hypothesis with an alpha level of .05 and a sample size of 30? A. t-critical is 1.699 B. t critical is 2.045 C. t critical is 2.042 D. t critical is 2.457
For this problem you will need a t-table. What is the t-value needed for the critical value for a one-tailed upper hypothesis test with a sample size = 33 and alpha =.01? Group of answer choices 2.449 2.738 2.733 2.445
A random sample of size 20 is selected from a normal population, where the population standard deviation is unknown. Assume that a two-tailed test at the 1% significance level is to be used. For what value of t will the null hypothesis not be rejected? Select one: a. None of the suggested answers are correct. b. to the left of -2.845 or to the right of 2.845 c. to the left of -2.528 or to the right of 2.528 d....
Consider an hypothesis test of two means with a test statistic t-stat = 0.78, a critical value t-crit = 2.07, and an hypothesized difference equal to 0. Using the information above, determine the number of standard errors your difference in sample means is away from zero. Select one: a. 0.78 b. 2.07 c. Cannot solve without a significance level. d. Cannot solve without knowing the sample size.
If a researcher conducted a 2-tailed , non-directional hypothesis test with an alpha leve4l of .02 , what would be the corresponding critical value z-score(s)? a. -2.32 b.+2.325 and -2.325 c. +1.96 and -1.96 d. +2.055 and -2.055
Part 1) The critical value of t at a .01 level in a one-tail test will equal the critical value of t for a two-tail test at what level of significance? .05 .10 .20 None of these Part 2) The critical value of t at a .05 level in a two-tail test will equal the critical value of t for a one-tail test at what level of significance? .025 .10 .20 None of these
What is the critical value for a one-tailed hypothesis test in which a null hypothesis is tested at the 5% level of significance based on two samples, both sample sizes are 13? The standard deviations for the samples are 5 and 7. Assume the population standard deviations are unequal. Please explain and show your work. Thank you!
Find the critical value(s) and rejection region(s) for the indicated t-test, level of significance alpha α, and sample size n. Right-tailed test, alpha α=0.01, n=28 1) The critical values is/ are ??? 2) Determine the rejection region(s). Select the correct choice below and fill in the answer box(es) within your choice. a) t <__ and t >__ b) t >__ c)__ < t < __ d) t < __ Please show all work!! Thanks in advance! :)
What is the t-critical value for an alpha level of 0.01 for a one-tailed test for N=79? Report either the positive or negative value, and round your answer to 2 decimals.
Alejandra is using a one-sample t-test to test the null hypothesis Ho: u = 10.0 against the alternative H1: 4 < 10.0 using a simple random sample of size n = 10. She requires her results to be statistically significant at level a = 0.10. Determine the maximum value of t that will reject this null hypothesis. You may find this table of t-critical values useful. If you are using software, you may find this catalog of software guides useful....