Question
Attempts: 1Average: 1/5 2. The logic of hypothesis testing A Federal Communications Commission (FCC) economist conducts a statistical study to test her hunch that As Aa consumers' mean monthly phone bill changes following the purchase of an iPhone. The economist should use a hypothesis test because she: Does not know and probably not calculate the mean for the entire population O Knows or can calculate the population mean, but she still should compare it to a sample mean 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 Alternative HypothesisHypothesis Consumers' mean monthly phone bill stays the same following the purchase of an iPhone Consumers mean monthly phone bill decreases following the of an iPhone Consumers mean monthly phone bill increases following the purchase of an iPhone
Explanation / Answer
1. Null Hypothesis : As it nullifies the change i.e. It states that there was no change at all.
2. Nither : As this is a non directional test, the alternative hypothesis will not account for one direction only(Greater Or Lesser)
3. Nither : As this is a non directional test, the alternative hypothesis will not account for one direction only(Greater Or Lesser)
4. Alternative Hypothesis : Since this test is non directional, change in any direction will count as change. Thus this will act as appropriate alternative hyopthesis since it accounts for change.
