Use the z-table, find the critical region/s for each: a) a = 0.015, two-tailed test b) a = 0.025, left-tailed test c) a = 0.0125, right-tailed
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Use the z-table, find the critical region/s for each:
a) a = 0.015, two-tailed test
b) a = 0.025, left-tailed test
c) a = 0.0125, right-tailed test
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- Find the critical value and rejection region for the type of t-test with level of significance a and sample size n. Left tailed test a=0.01, n=36The length of a movie file that is available for streaming is modeled using the normal distribution shown below. The mean of the distribution is 170.5 min and the standard deviation is 19.9 min, In the figure, V is a number along the axis and is under the highest part of the curve. And, U and W are numbers along the axis that are each the same distance away from V. Use the empirical rule to choose the best value for the percentage of the area under the curve that is shaded, and find the values of U, V, and W. Percentage of total area shaded: (Choose one) 100 120 140 160 180 200 220 240 ( min)A manufacturer producing cocacola drinks wanted to set the specification of production to achieve process capability. He set his Upper Control Limit (UCL) = 0.03, proportion of defective items as 0.02. Calculate the number of sample observations (n) to be used to ensure 99.74 of the value.
- Find the critical value(s) for a left-tailed -test with a = 0.06. Include a graph with your answer. The critical value(s) is(are)__ (Round to two decimal places as needed. Use a comma to separate answers as needed.) Draw a graph of the rejection region. Choose the correct graph below.A physical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 54 men and 70 women to participate in the study. Each subject was required to step up and down a 6-inch platform. The pulse of each subject was then recorded. The following results were obtained. Two sample T for Men vs Women N Mean StDev SE Mean Men Women 98% CI for mu Men - mu Women (- 12.20, - 1.00) T-Test mu Men = mu Women (vs H2 O C. Ho: H1 = H2; Ha: H1 #H2 (b) Identify the P-value and state the researcher's conclusion if the level of significance was a = 0.01. What is the P-value? P-value =Do one of the following, as appropriate: (a) Find the critical value za/2, (b) find the critical value ta/2, (c) state that neither the normal nor the t distribution applies. 98%; n = 7; 0 = 27; population appears to be normally distributed. Seleccione una: O A. Za2 = 2.33 B. Za2 = 2.05 C. ta2 = 2.575 %3D D. ta2 = 1.96 O O
- Find the critical value(s) and rejection region(s) for the indicated t-test, level of significance a, and sample size n. Right-tailed test, α = 0.005, n = 24 Click the icon to view the t-distribution table. The critical value(s) is/are 2.807 (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 fill in the answer box(es) within your choice. (Round to the nearest thousandth as needed.) A. O C. t> t-Distribution Table d.f. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 . Level of confidence, c One tail, a Two tails, a 0.99 0.005 0.01 63.657 6.965 9.925 4.541 5.841 4.604 4.032 5 3.707 6 3.499 7 3.355 3.250 3.169 3.106 0.80 0.90 0.95 0.98 0.10 0.05 0.025 0.01 0.20 0.10 0.05 0.02 3.078 6.314 12.706 31.821 1.886 2.920 4.303 1.638 2.353 3.182 1.533 2.132 2.776 3.747 1.476 2.015 2.571 3.365 1.440 1.943 2.447 3.143 1.415 1.895 2.365 2.998 1.397…Find the z-score that defines α=0 .05 and α=.01 critical regions for a one-tail test? 8. Find the z-score that defines α=0 .05 and α=.01 critical regions for a two-tail test?A random sample of 28 records of automobile driver fatalities in kit carson coybry showed 15 involved an intoxicated driver. Do these data indicate that the population proportion of driver fatalities related to alochol is less than 77%. Use a=0.01 to determine the test statistic, the critical value, and p value.
- Define the critical region for a hypothesis test, and explain how the critical region is related to the alpha level.a. Find the expected frequencies. b. Determine the critical value, x^2 0, and the rejection region. c. Calculate the test statistic. (d) Decide whether to reject or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.Which two fields of the ANOVA summary table help us find the critical value? Select all that apply A.df between B.MS within C.df within D. MS between