If a hypothesis test were to be performed, in which of the following contexts would a t-test be appropriate? Select the correct answer below: A convenience sample of 27 mountain bikes is taken from the most popular bicycles offered by major retailers with approximately normally distributed weights. The sample mean is 25 pounds and the population standard deviation is 2 pounds. A simple random sample of 30 movies is taken from the collection of movies at a rental store and the time lengths were collected. The sample mean is 109 minutes. The population standard deviation is known to be 10 minutes. A simple random sample of 22 breakfast cereals is taken from the most popular breakfast cereals offered by major retailers with approximately normally distributed calories per serving. The sample mean is 191 calories per serving, the sample standard deviation is 5 calories per serving, and the population standard deviation is 4.0 calories per serving. A sample mean of 59,165 dollars and sample standard deviation of 4,606 dollars are obtained using a simple random sample of 19 individuals from the residents of a town, which have approximately normally distributed incomes.