A company is doing a hypothesis test on the variation of quality from two suppliers. Both distributions are normal, and the populations are independent. use αα = 0.01H0 : σσ 1 2 = σσ 2 2HA : σσ 1 2 > σσ 2 2The standard deviation of the first sample is 2.11074.5008 is the standard deviation of the second sample.The test statistic is = Fail to reject the null hypothesis Reject the null hypothesis

A company is doing a hypothesis test on the variation of quality from two suppliers. Both distributions are normal, and the populations are independent. use αα = 0.01H0 : σσ 1 2 = σσ 2 2HA : σσ 1 2 > σσ 2 2The standard deviation of the first sample is 2.11074.5008 is the standard deviation of the second sample.The test statistic is = Fail to reject the null hypothesis Reject the null hypothesis

Auditing: A Risk Based-Approach (MindTap Course List)

11th Edition

ISBN:9781337619455

Author:Karla M Johnstone, Audrey A. Gramling, Larry E. Rittenberg

Publisher:Karla M Johnstone, Audrey A. Gramling, Larry E. Rittenberg

Chapter8: Specialized Audit Tools: Attributes Sampling, Monetary Unit Sampling, And Data Analytics Tools

Section: Chapter Questions

Problem 35CYBK

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A company is doing a hypothesis test on the variation of quality from two suppliers. Both distributions are normal, and the populations are independent. use αα = 0.01H0 : σσ 1 2 = σσ 2 2HA : σσ 1 2 > σσ 2 2The standard deviation of the first sample is 3.59994.9162 is the standard deviation of the second sample.The test statistic is = Reject the null hypothesis Fail to reject the null hypothesis
You are testing the null hypothesis that there is no relationship between two variables, X and Y. From your sample of n = 20, you determine that SSR = 80 and SSE 20. Complete parts (a) through (e) below. a. What is the value of FSTAT? State the hypotheses to test. Choose the correct answer below. OA H B₁50 H₁ B₁0 OC. Ho B₁ #0 H₁ = B₁ = 0 = 72 (Round to the nearest integer as needed) FSTAT = b. At the a=0.05 level of significance, what is the critical value? The critical value is 4.41 (Round to two decimal places as needed.) c. Based on your answers to (3) and (b), what statistical decision should you make? A. Reject H. There is no evidence that there is a relationship between X and Y. OB. Do not reject H. There is no evidence that there is a relationship between X and Y. OC. Do not reject H,. There is evidence that there is a relationship between X and Y D. Reject H. There is evidence that there is a relationship between X and Y. d. Compute the correlation coefficient by first…
K Conduct a test at the α = 0.05 level of significance by determining (a) the null and alternative hypotheses, (b) the test statistic, and (c) the P-value. Assume the samples were obtained independently from a large population using simple random sampling. Test whether p₁> P2. The sample data are x₁ = 116, n₁ = 244, x2 = 132, and n₂ = 313. (a) Choose the correct null and alternative hypotheses below. OA. Ho P1 P2 versus H₁: P1 P2 OB. Ho P₁ P2 versus H₁: P₁ P2 OD. Ho p₁ =0 versus H₁:.p₁ #0 (b) Determine the test statistic. Zo= (Round to two decimal places as needed.) (c) Determine the P-value. The P-value is (Round to three decimal places as needed.) What is the result of this hypothesis test? OA. Do not reject the null hypothesis because there is not sufficient evidence to conclude that p₁ #p2- OB. Do not reject the null hypothesis because there is not sufficient evidence to conclude that p₁ P2- OD. Reject the null hypothesis because there is sufficient evidence to conclude that p₁…
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Exercise 14-11 Algo The following table lists the National Basketball Association's leading scorers, their average points per game (PPG), and their average minutes per game (MPG) for 2008. [You may find it useful to reference the t table.) MPG PPG 30.4 D. Hade 37.8 36.8 L. Janes 30.4 28.5 35.3 K. Bryant D. Nowitzki D. Granger K. Durant C. Paul C. Anthony C. Bosh B. Roy bo 27.7 36.4 27.6 27.1 24.6 35.5 38.4 37.9 24.6 34.1 24.5 24.4 37.5 36.7 Cick here for the Excel Data File a-1. Calculate the sample correlation coefficient between PPG and MPG, (Round intermediate calculations to at least 4 decimal places and final answer to 4 decimel places.) Sample correlation coefficient
What is the answer for c)
The standard deviation of.alt=”f$ar{X},f$ “> is usually called the A.standard error of the sample B.randomized standard error C.standard error of the mean D.standard error of the population
What is the test statistics and critical values. I got 4.20 for the test statistic, but it says its incorrect.
True/false Questions: Decide whether the following statements are true or false. (3p) a. A normal distribution will usually have outliers. b. A z-score represents the number of standard deviations above or below the mean. c. The mean of the sampling distribution of the means is equal to the mean of the population from which the values were sampled.
What is the f-stat and critical value?
Each of the following statements contains an error. Describe the error and then correct the statement. (9p) a. For a symmetric distribution, the mean will be smaller than the median. b. When taking SRSs from a large population, larger sample sizes will result in larger standard deviations of x. c. The central limit theorem states that for large n, the shape of the sampling distribution is approximately the shape of the population distribution.
(2 points) Suppose that we are to conduct the following hypothesis test: Ho p H₁ == 1050 1050 στ == Suppose that you also know that σ = 250, n = 95, 1090, and take a = 0.1. Draw the sampling distribution, and use it to determine each of the following: A. The value of the standardized test statistic: Note: For the next part, your answer should use interval notation. An answer of the form (-00, a) is expressed (-infty, a), an answer of the form (b, x) is expressed (b, infty), and an answer of the form (-00, a) U (b, c) is expressed (-infty, a)U(b, infty). B. The rejection region for the standardized test statistic: C. The p-value is D. Your decision for the hypothesis test: A. Do Not Reject H₁. B. Do Not Reject Ho- C. Reject Ho D. Reject H₁.