Solution:
d.f. = 18
= 0.02
/2 = 0.02/2 = 0.01
For two tailed test , critical value is
Answer: 2.552
Question 14 (4 points) What is the critical t-value for a two-tailed test when a =...
Question 23 (8 points) What is the critical value for a two-tailed t test when a = 0.02 and n = 19? 1) 2.878 O2) 2.567 3) 2.552 O 4) 2.110
An average department store sells 200 men's suits per year. The men's suit departments at a particular national chain of stores claim that they more than the industry average. In a sample of 40 stores, they sold, on the average, 220 suits per year with a standard deviation of $40. What is the test value for this hypothesis? 1) 0.08 2) 0.50 3) 1.83 4) 3.16 What is the critical t-value for a two-tailed test when a =0.02 and d.f....
What is the critical value for a two-tailed t test when a = 0.02 and n= 19? 1) 2.878 2) 2.567 3) 2.552 4) 2.110 Find the minimum sample size you should use to assure that your estimate of p will be within the required margin of error around the population p. Margin of error: 0.07; confidence level: 97%; p and q unknown 1) 240 2) 8 3) 111 4) 241 Construct the cumulative frequency distribution that corresponds to the...
QUESTION 15 The critical value for a 2-tailed independent t-test with two groups of 15 people (alpha .01) is: +/- 1.960 +/- 2.763 +/- 2.101 +/- 2.878
A. Critical Values for Hypothesis Tests (o known) a) For an upper tailed hypothesis test when a = .0197, then 2 = b) For a two-tailed hypothesis test when a = 0.0104, then 2a/2= c) For a lower-tailed hypothesis test when a = 0.0132, then-Za = B. Critical Values for Hypothesis Tests (o unknown) a) For an upper tailed hypothesis test at 27 d.f. and a = .025, then ta = b) For a two-tailed hypothesis test at 58 d.f....
The critical value for a two tailed sign test for 19 coin flips with an alpha of .05 is: 5 and 14 2 and 17 4 and 15 1 and 18
Example 8.23. #4. With your cakeulator find the critical value (or val ues) for the t test for each. Then draw the corresponding picture a. n-15, -0.05, right-tailed b. n-23, a 0.005, left-tailed c, n 28, α-0.01, two-tailed d. n 17, a 0.02, two-tailed Solutions a. n-15, df-14 and t- 163 and te Example 8.23. #4. With your cakeulator find the critical value (or val ues) for the t test for each. Then draw the corresponding picture a. n-15, -0.05,...
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
Find the critical value(s) and rejection region(s) for the indicated t test level of significance α and sample size n Left-tailed test, α: 0.005, n 7 Click the icon to view the t-distribution table. The critical value(s) isare (Round to the nearest thousandth as needed. Use a comma to separate answers as needed ) Determine the rejection region(s) Select the correct choice below and filt in the answer boxies) within your choice Round to the nearest thousandth as needed) OB...
Find the critical value (or values) for the t test for the given case n=12, a=0.01, left tailed Find the critical value (or values) for the t test for the given case n=17, a=0.02, two tailed