9. Find the critical value of a right tailed t-test where n and.05. 12 10. What...
1)Find the critical value for right tailed T- test if n = 15, and the level of significance is 5% a) 1.753 b) 2.145 c)1.761 d) 2.131 2) Find the critical value for left tailed T- test if n = 15, and the level of significance is 5% a)-1.761 b)1.761 c)1.753 d)-1.753
21. Determine the critical value(s) for a left-tailed hypothesis test for a mean with the following characteristics The signifance level of the test is 2.5% The sample size is 71 The population standard deviation (σσ) is known to be 1.3 Should the t or z distribution be used for the above scenario? The critical value(s) for the test are given by?
12) rind the critical value and rejection region for the type of t-test with level of sign nance anu sa pe le n. z) Left-tailed test, a 0.01, n-36 A) to =-2.438; t <-2.438 C) to 1.306; t -1.306 B) to D) to 2.434; t <-2.434 2.438; t>2.438 Objective: (7.3) Find Critical Values in a t-distribution 13) A manufacturer claims that the mean lifetime of its fluorescent bulbs is 1400 hours. A homeowner 13)- selects 25 bulbs and finds the...
Find the critical value(s) for a right-tailed test for a population variance, sample size n = 12, and level of significance α-o025. The critical value(s) is(are) (Use a comma to separate answers as needed. Round to three decimal places as needed.)
Complete parts (a) through (c) below. (a) Determine the critical value(s) for a right-tailed test of a population mean at the a=0.10 level of significance with 10 degrees of freedom (b) Determine the critical value(s) for a left-tailed test of a population mean at the a=0.10 level of significance based on a sample size of n = 15. (c) Determine the critical value(s) for a two-tailed test of a population mean at the a= 0.05 level of significance based on...
1) Find the critical z-value(s) for a right tailed test with α = .02 . Assume a normal population. (Round to the nearest hundredth. If more than one value is found, enter the smallest critical value.) 2) Find the critical t-value(s) for a two-tailed test with n = 12, α = .05 . Assume a normal population. (Round to the nearest thousandth. If more than one value is found, enter the smallest critical value.) 3) Find χ2R for a right-tail...
Complete parts (a) through (c) below (a) Determine the critical value(s) for a right-tailed test of a population mean at the ?-0.05 level of significance with 10 degrees of freedom (b Determine the critical value(s) for a left-tailed test of a population mean at the ? 0 01 level of significance based on a sample size of n-15 c) Determine the critical value(s) for a two-tailed test of a population mean at the ?:0.01 level of significance based on a...
What is the critical value of a two-tailed t-test, where the sample size is 22 and the level of significant is 0.01? Round to the nearest thousandth
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.
You are performing a left-tailed z-test If α = .05 , find the critical value, to two decimal places.