In a study of facial behavior, people in a control group are timed for eye contact in a 5-minute period. Their times are
Posted: Mon Jul 11, 2022 11:49 am
In a study of facial behavior, people in a control group are timed for eye contact in a 5-minute period. Their times are normally distributed with a mean of 181.0 seconds and a standard deviation of 54.0 seconds. Use the 68-95-99.7 rule to find the indicated quantity. a. Find the percentage of times within 54.0 seconds of the mean of 181.0 seconds. % (Round to one decimal place as needed.) b. Find the percentage of times within 108.0 seconds of the mean of 181.0 seconds. % (Round to one decimal place as needed.) c. Find the percentage of times within 162.0 seconds of the mean of 181.0 seconds. % (Round to one decimal place as needed.) d. Find the percentage of times between 181.0 seconds and 289 seconds. % (Round to one decimal place as needed.)