You are conducting a hypothesis test where the null hypothesis is that mu is less than or equal to 850. You take a sample of size 64. Your sample average is 840, and the standard deviation is 20. Your test will be at the 0.05 significance level. What is/are the critical values for this test? Group of answer choices -1.64 and 1.64 1.96 -1.64 1.64

You are conducting a hypothesis test where the null hypothesis is that mu is less than or equal to 850. You take a sample of size 64. Your sample average is 840, and the standard deviation is 20. Your test will be at the 0.05 significance level. What is/are the critical values for this test? Group of answer choices -1.64 and 1.64 1.96 -1.64 1.64

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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65 homeless people in San Jose were asked their age. The sample mean age was 33.2 years. Let x be a random variable representing ages of homeless people in San Jose. Assume that x has a normal distribution and o = 7.3 years. Do the data indicate that the mean age of the population of homeless people in San Jose is less than 35 years old? Use a = 0.05. Identify the following in your answer. 1. Identify the null hypothesis Ho and alternate hypotheses H, for the problem. 2. Identify the sample statistic, test statistic, p-value and calculator key used: Sample Statistic (sample mean) (Stated in problem) = Test Statistic (z) (Round to two decimal places) %3D P-value: (Round to four decimal places) = Calculator key used: 3. Identify the significance level and determine if you reject or fail to reject the null hypothesis. significance level = Do you reject or fail to reject Ho ? 4. State your conclusion. Upload your answer. Remember you can only upload one document. Upload Choose a File
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