7. Hypothesis Testing with the P-Value Method A researcher claims that the mean sodium content of sandwiches at Restaurant A is less than the mean sodium content of sandwiches at Restaurant B. The mean sodium content of 22 randomly selected sandwiches at Restaurant A is 670 mg. Assume the population standard deviation is 20 mg. The mean sodium content of 28 randomly selected sandwiches at Restaurant B is 690 mg. Assume the population standard deviation is 30 mg. At a = value method. Clearly show all steps. 0.05, is there enough evidence to support the claim? Use the P-

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.