State the conclusion based on the results of the test. According to the report,

ID: 3294935 • Letter: S

Question

State the conclusion based on the results of the test. According to the report, the standard deviation of monthly cell phone bills was $49.39 three years ago. A researcher suspects that the standard deviation of monthly cell phone bills is less today. The null hypothesis is rejected. Choose the correct answer below. A. There is sufficient evidence to conclude that the standard deviation of monthly cell phone bills is less than its level three years ago of $49.39. B. There is sufficient evidence to conclude that the standard deviation of monthly cell phone bills is different from its level three years ago of $49.39. C. There is not sufficient evidence to conclude that the standard deviation of monthly cell phone bills is less than its level three years ago of $49.39.

Explanation / Answer

The answer is"B" There is a sufficient evidence to conclude that the mean monthly cell bill is different from its level 3 years ago of $49.39

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State the conclusion based on the results of the test. According to the report,

State the conclusion based on the results of the test. The mean of the pressure

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State the conclusion based on the results of the test. According to the report,

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