Question 5 The solar energy consumed (in trillion BTU) in the United States by year from 2000 to 2015 is shown in the following table. Read down then across for year. Check the assumption of normality in the population. Construct a 90% confidence interval for the mean solar energy consumed. Include your solutions. 55.291 59.718 62.688 63.886 66.458 68.548 69.857 70.833 70.237 69.787 68.793 66.388 65.454 64.391 63.62 63.287

Sam arrived home at 3:30pm. He took 20 mins to shower and change, 10 minutes to have a meal and 2 and a half hours to complete his homework. He watched tv for 1 and 3/4 hours and went to bed. What time did he go to bed?

A total of $6000 is invested for 5 yr with a total return of $1080. Part of the money is invested in a fund that returns the equivalent of 2% simple interest. The rest of the money is invested at 4% simple interest. Determine the amount invested in each account.

Jayda takes 4 hours to deliver 508 newspapers on her paper route. What is the rate per hour at which she delivers the newspapers?

Sara's hair ribbon is 4 cm long. Sally's hair ribbon is 3 times longer than Sara's. How long is Sally's ribbon?

A gas tank in a car has a capacity of 65 liters. On a full tank of gas, the car travels 300 miles. What is the mileage in miles per liter?

A pot of boiling soup with an internal temperature of 100° Fahrenheit was taken off the stove to cool in a 71°F room. After fifteen minutes, the internal temperature of the soup was 94°F. To the nearest minute, how long will it take the soup to cool to 82°F? min