Consider the following hypotheses test. Ho:u z 80 H: u < 80 A sample of 100 provided a sample mean of 77.2. The population standard deviation is known to be 15. (a) Compute the value of the test statistic. (Round your answer to two decimal places.) (b) Determine the p-value; and using a = 0.063, test the above hypotheses. Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. Reject H. There is insufficient evidence to conclude that u is less than 80. Do not reject Ho. There is insufficient evidence to conclude that u is less than 80. 0' Do not reject Ho. There is sufficient evidence to conclude that u is less than 80. Reject H.. There is sufficient evidence to conclude that u is less than 80. 0'

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Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.