State the conclusion based on the results of the test. According to the report, the mean monthly cell phone bill was $48.77 three years ago. A researcher suspects that the mean monthly cell phone bill...

Extracted text: State the conclusion based on the results of the test. According to the report, the mean monthly cell phone bill was $48.77 three years ago. A researcher suspects that the mean monthly cell phone bill is higher today. The null hypothesis is rejected. Choose the correct answer below. O A. There is not sufficient evidence to conclude that the mean monthly cell phone bill is higher than its level three years ago of $48.77. B. There is sufficient evidence to conclude that the mean monthly cell phone bill is higher than its level three years ago of $48.77. C. There is sufficient evidence to conclude that the mean monthly cell phone bill is less than its level three years ago of $48.77.