Mathematics, 26.10.2019 02:43 Karxra

State the conclusion based on the results of the test. according to the report, the mean monthly cell phone bill was $49.42 three years ago. a researcher suspects that the mean mon null hypothesis is rejected
choose the correct answer below
a. there is sufficient evidence to conclude that the mean monthly cell phone bill is less than its level three years ago of $49.
b. there is not sufficient evidence to conclude that the mean monthly cell phone bill is less than its level three years ago。
c. there is sufficient evidence to conclude that the mean monthly cell phone bill is different from its level three years ago of

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State the conclusion based on the results of the test. according to the report, the mean monthly cel...