Write acorrect null and alternative hypothesis for testing the claim thatthe mea

Question

Write acorrect null and alternative hypothesis for testing the claim thatthe mean life of a battery for a cell phone is at least 75hours.

Write a correct alternative hypothesis that tests the claim thatthe mean distance a student commutes to campus is no greater than7.5 miles.
Write acorrect null and alternative hypothesis for testing the claim thatthe mean life of a battery for a cell phone is at least 75hours.

Write a correct alternative hypothesis that tests the claim thatthe mean distance a student commutes to campus is no greater than7.5 miles.

Explanation / Answer

Null hypothesis: The null hypothesis is that the mean life of a battery for acell phone is at least 75 hours. i.e. H0: 75. Alternative hypothesis: The alternative hypothesis is that the meal life of a batteryfor a cell phone is less than 75 hours. i.e. Ha:<75. Alternative hypothesis: Alternative hypothesis: The alternative hypothesis is that the mean distance a studentcommutes to campus is less than 7.5 miles. i.e. Ha:<7.5.

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