Complete the following t-score problem. Rip observes the sleep schedules of a SRS of 20 college students over the span of a semester. He determines the mean number of hours of sleep per night each student gets and records the values in the table below. Enter these values into your statistical calculator. 4.1 5.7 5.4 6.9 8.2 8.2 6.2 8.7 8.8 7.1 5.9 5.3 8.7 8.4 5.2 4.8 8.1 8.5 8.7 6 а. Determine the point estimate to the nearest hundredth. Work/Explanation Answer b. Determine the sample standard deviation to the nearest thousandth. Work/Explanation Answer c. Determine the standard error to the nearest thousandth. Work/Explanation Answer d. Identify the critical value for a 99% confidence interval. Work/Explanation Answer

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