The amount of time workers spend commuting to their jobs each day in a large metropolitan city has a mean of 70 minutes and a standard deviation of 20 minutes. Assuming nothing is known about the shape of the distribution of commuting times, what percentage of these commuting times are between 30 and 110 minutes?Group of answer choicesat least 95%at least 89%at least 0%at least 75%

Suppose the commute times for employees of a large company follow a normal distribution. If the mean time is 22 minutes and the standard deviation is 5 minutes, 95% of the employees will have a travel time within which range?A.17.25 minutes to 26.75 minutesB.17 minutes to 27 minutesC.12 minutes to 32 minutesD.7 minutes to 37 minutesSUBMITarrow_backPREVIOUS

Dave drives to work each morning at about the same time. His commute time is normally distributed with a mean of 50 minutes and a standard deviation of 6 minutes.  What percentage of the time will his commute time be greater than 58 minutes?

The following data represents the daily commute times (in minutes) of 8 employees in a company: 15, 20, 25, 30, 35, 40, 45, 50.Calculate the mean deviation from the mean commute time.*2 pointsThe mean deviation from the mean commute time is 10 minutes.The mean deviation from the mean commute time is 11 minutes.The mean deviation from the mean commute time is 12 minutes.The mean deviation from the mean commute time is 13 minutes.

What is the probability that an employee’s commute time to work is 35 minutes?Note: You’re not expected to know the right answer at this point. This question is given just to get you thinking in the right direction.Approximately 0%Approximately 30%–35%Insufficient information – The probability distribution is required

A professor samples 9 random SVC students and record their commute times. She finds that the average commute time of the 9 students is 13.6 minutes with a standard deviation of 4.01 minutes. She also finds that the commute times look like they come from a normal distribution.Find a 80% confidence interval for the mean commute time of all SVC students.(,) Round to three decimal places.