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 $48.17 three years ago. A researcher suspects that the standard deviation of monthly cell phone bills is different today. The null hypothesis is rejected. Choose the correct answer below. ? A O B. ° ? There is not sufficient evidence to conclude that the standard deviation of monthly cell phone bills is different tom its level three years ago of $48.17. There is suficient evidence to conclude that the standard deviation of monthly cell phone bills is different fro m its level three years ago of S48.17. There is suficient evidence to conclude that the standard deviation of monthly cell phone bills is higher than its level three years ago of $48.17.

Explanation / Answer

Option - B is correct.

                                         

                                            

                                                

                                                 

                                

                                 

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