Research question: In the population of all commuters who work in Harrisburg, Pennsylvania, is the mean commute time greater than 15 minutes? Data were collected from a random sample of 200 commuters who work in Harrisburg, Pennsylvania. The sample mean was 19.658 minutes. The sample data were slightly skewed to the right. The shape of the population distribution is unknown. In this scenario, is it appropriate to use the t distribution to approximate the sampling distribution? O Yes, the t distribution may be used O No, the t distribution should not be used In a random sample of 50 trials there were 35 successes. These data were used to compute the sample proportion and standard error: p = 35 = 0.7 standard error = 0.7(1-0.7) 50 = 0.0648 Construct a 99% confidence interval to estimate the population proportion. The z* multiplier for a 99% interval is 2.576. O [0.533, 0.867] O [0.691, 0.709] O [0.570, 0.830] Research question: Is the average age in the population different from 35 years? Select the correct set of hypotheses. Ho: p = 0.35 Ha: p = 0.35 O Ho: = 35 Ha: = 35 Ho: #35 a: = 35 O Ho: p = 0.35 Ha: p = 0.35