Brand x batteries have a mean life span of 102 hours, with a standard deviation of 6.8 hours. brand y batteries have a mean life span of 100 hours, with a standard deviation of 1.4 hours. complete each of the sentences.

about 68% of brand x’s batteries have a lifespan between and hours. about 68% of brand y’s batteries have a lifespan between and hours. the life span of brand ’s battery is more likely to be consistently close to the mean.

Which of the following best describes the economic effect that results when the government increases interest rates and restricts the lending of money? a. borrowing money becomes more expensive and there is less investment in production. b. the economy grows as investments result in larger profits. c. government spending drives up prices because of greater competition for goods and services. d. consumers save more money and spend less buying goods and services.

11.     before adding cream to a simmering soup, you need to a. simmer the cream. b. chill the cream. c. strain the cream through cheesecloth. d. allow the cream reach room temperature. student d   incorrect which answer is right?

Afirm’s production function is represented by q(m,r) = 4m 3/4r1/3, where q denotes output, m raw materials, and r robots. the firm is currently using 6 units of raw materials and 12 robots. according to the mrts, in order to maintain its output level the firm would need to give up 2 robots if it adds 9 units of raw materials. (a) true (b) false