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

Question

State the conclusion based on the results of the test. According to the report, the standard deviation of monthly cell phone bills was $49.81 three years ago. A researcher suspects that the standard deviation of monthly cell phone bills is different today. The null hypothesis is not rejected. Choose the correct answer below. A. There is notis not sufficient evidence to conclude that the standard deviation ofstandard deviation of monthly cell phone billsbills is different fromdifferent from its level three years ago of $49.81. B. There is sufficient evidence to conclude that the standard deviation ofstandard deviation of monthly cell phone billsbills is higher than its level three years ago of $49.81. C. There is sufficient evidence to conclude that the standard deviation of monthly cell phone bill is different from its level three years ago of $49.81

Explanation / Answer

According to the report, the standard deviation of monthly cell phone bills was $49.81 three years ago. A researcher suspects that the standard deviation of monthly cell phone bills is different today. The null hypothesis is not rejected.

the correct answer : A. There is not sufficient evidence to conclude that the standard deviation of standard deviation of monthly cell phone bills is different from different from its level three years ago of $49.81.

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