A researcher has tested the hypotheses H0: = 69 versus H1: < 69 at a 5% level of significance. Here denotes the average height (in inches) of an adult male resident of the United States. In order to test these hypotheses, the researcher obtained a random sample of 400 heights for adult males. The sample average height is 68.6 inches and the sample standard deviation is 5 inches. Compute the p-value.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
A researcher has tested the hypotheses H0: = 69 versus H1: < 69 at a 5% level of significance. Here denotes the average height (in inches) of an adult male resident of the United States. In order to test these hypotheses, the researcher obtained a random sample of 400 heights for adult males. The sample average height is 68.6 inches and the sample standard deviation is 5 inches. Compute the p-value.
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