2) The operations manager of a plant that manufactures tires wants to compare the actual inner diameters of two grades of tires, each of which is expected to be 575 millimeters. A sample of five tires of each grade was selected, and the results representing the inner diameters of the tires, ranked from smallest to largest, are as follows: Grade X 568 570 575 578 584 Grade Y 573 574 575 577 578 a) For each of the two grades of tires, compute the mean, median, and standard deviation. b) Which grade of tire is providing better quality? Explain. c) What would be the effect on your answers in (a) and (b) if the last value for grade Y were 588 instead of 578? Explain.

CLEAN laundry detergent costs $8.60 for 25 loads.  FRESH laundry detergent costs $10.50 for 40 loads.  Make two ratio tables to show cost and number of loads that are in the same ratios as the original detergents.  Then decide which detergent is the better buy.  Explain your choice referencing your ratio tables.

If you drive for 7 hours and travel 525 miles, what is your rate?

soybean mean is 18% proteien; cormeal is 9% protien, how many pounds of each shound be mixed together in order to get 360 lb mixure that is 14% protien?

You have graduated form college and are working for a prestigious real estate investment firm. Your boss is considering in investing in luxury condos in Paris France or Tokyo Japan. He has found five such condos in each city listed below (these are real prices and units by the way). He would like you to calculate the list cost of purchase in USD and area of the condo in square feet. He would also like the cost per square foot in USD (common comparison value in real estate) Complete these calculations for him. You will have to look up the euro to USD and Yen to USD conversion rates and report these in the problem. Paris TOKYO Cost (euro) Square meters Cost (yen) Square meters 1,383,000 130 1,000,000,000 550 1,187,265 78 460,000,000 875 1,197,800 62 194,800,000 152 2,943,100 133 245,000,000 122.5 11,407,700 216 199,800,000 89

Before an increase in excise duty on tea, 800 people out of a sample of 1000 were consumers of tea. After the increase in duty, 800 people were consumers of tea in a sample of 1200 persons. Find whether there is significant decrease in the consumption of tea after the increase in duty. LOS 5%.

What is the total profit, in dollars, if 30 students play Pac-man?

A student in an Chemistry class has test scores of 70, 63, 61, and 68. The final exam is worth the same amount as 3 test grades.    How would you find the lowest grade that could be earned on the final exam that would still result in at least a B in the course (average score of 80%?)

Last week Julia ran 30 miles more than pranav. Julia ran 47 miles . How many miles did pranav run?

At the beginning of the semester, you have the following scores on your first two tests: 96 and 88. (a) What is your current test average? (Round your answer to 2 decimal places.)(b) For the next test, your performance slips and you get a 65. What is your new test average, incorporating all three tests? (Round your answer to 2 decimal places.