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Historically it is known that residents in B.C. watch an average of 14 hours of television per week with a population standard deviation of 3.2 hours. In order to determine if this average has increased due to COVID-19 restrictions , a random sample of 300 B.C. residents people were selected and their TV behavior was questioned. The sample reported spending an average of 26 hours watching TV per week. Which hypothesis test should be used to determine if the average has changed? Select one: O a. t- test for one sample mean, two-tail O b. t- test for one sample mean, one-tail O c. z test for one sample mean, one-tail O d. z test for one sample mean, two-tail