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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

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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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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