Question

1. The logic of hypothesis testing Aa Aa A Federal Communications Commission (FCC) economist conducts a statistical study to test her hunch that consumers' mean monthly phone bill changes following the purchase of an iPhone. The economist should use a hypothesis test because she: Knows or can calculate the population mean, but she still should compare it to a sample mean Does not know and probably cannot calculate the mean for the entire population Suppose the economist collects a random sample and decides to conduct a hypothesis test. Formulate the null and alternative hypotheses. For each statement in the following table, click the correct radio button to indicate whether the statement is the null hypothesis, the alternative hypothesis, or neither. (Hint: This is a nondirectional hypothesis test.) Null Hypothesis Alternative Hypothesis Neither O Consumers' mean monthly phone bill increases following the purchase of an iPhone. Consumers' mean monthly phone bill changes following the purchase of an iPhone. Consumers' mean monthly phone bill stays the same following the purchase of an iPhone. Consumers' mean monthly phone bill decreases following the purchase of an iPhone. O оо

Answer 1

1)

Correct matched statement are:

o Consumers' mean monthly phone bill increases following the purchase of an iPhone. Consumers' mean monthly phone bill changes following the purchase of an iPhone. Consumers' mean monthly phone bill stays the same following the purchase of an iPhone. Consumers' mean monthly phone bill decreases following the purchase of an iPhone. Alternative Hypothesis Alternative Hypothesis o Null Hypothesis Alternative Hypothesis

2)

state the hypothesis: step 1

Determine the probability at which: step 2

Collect the data: ,.,,step 3

Decide whether to reject or ,,,:step 4