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A random sample of 100 customers were observed to find out if the waiting time for customers in ticket counters takes more than190 seconds. The mean time for this sample was 202 seconds with a standard deviation of 28 seconds. With alpha level of 0.02, which of the following statements is true? O The chance of a Type Il error is 1-0.02 0.98. O The test to be conducted will be structured as a two-tailed test. O The test statistic will be approximately t 4.286, so the null hypothesis should be rejected. O The sample data indicate that the difference between the sample mean and the hypothesized population mean should be attributed only to sampling

A random sample of 100 customers were observed to find out if the waiting time for customers in ticket counters takes more than190 seconds. The mean time for this sample was 202 seconds with a standard deviation of 28 seconds. With alpha level of 0.02, which of the following statements is true? O The chance of a Type Il error is 1-0.02 0.98. O The test to be conducted will be structured as a two-tailed test. O The test statistic will be approximately t 4.286, so the null hypothesis should be rejected. O The sample data indicate that the difference between the sample mean and the hypothesized population mean should be attributed only to sampling

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A random sample of 100 customers were observed to find out if the waiting time for customers in ticket counters takes more than190 seconds. The mean time for this sample was 202 seconds with a standard deviation of 28 seconds. With alpha level of 0.02, which of the following statements is true? The chance of a Type Il error is 1 -0.02 0.98. The test to be conducted will be structured as a two-tailed test. The test statistic will be approximately t 4.286, so the null hypothesis should be rejected. The sample data indicate that the difference between the sample mean and the hypothesized population mean should be attributed only to sampling error. O none of the above
Transcribed Image Text:A random sample of 100 customers were observed to find out if the waiting time for customers in ticket counters takes more than190 seconds. The mean time for this sample was 202 seconds with a standard deviation of 28 seconds. With alpha level of 0.02, which of the following statements is true? The chance of a Type Il error is 1 -0.02 0.98. The test to be conducted will be structured as a two-tailed test. The test statistic will be approximately t 4.286, so the null hypothesis should be rejected. The sample data indicate that the difference between the sample mean and the hypothesized population mean should be attributed only to sampling error. O none of the above
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