In a study conducted in 1980, researchers calculated the height difference between couples with kids in the UK. They found that the height difference between husband and wife follows a normal distribution with mean 7 inches and standard deviation equal to 4 inches. 1) What is the difference in height for the middle 68% of the couples in the study?

2) Calculate the percentage of couples in which the man is 5 inches taller than the woman.

3) What percentage of couples the woman is taller than the man?

The following accounts are from last year’s books at s manufacturing: raw materials bal 0 (b) 157,400 (a) 172,500 15,100 work in process bal 0 (f) 523,600 (b) 133,700 (c) 171,400 (e) 218,500 0 finished goods bal 0 (g) 477,000 (f) 523,600 46,600 manufacturing overhead (b) 23,700 (e) 218,500 (c) 27,700 (d) 159,400 7,700 cost of goods sold (g) 477,000 s manufacturing uses job-order costing and applies manufacturing overhead to jobs based on direct labor costs. what is the amount of cost of goods manufactured for the year

Experts are particularly concerned about four strategic metal resources that are important for the u.s. economy and military strength, and that must be imported. what percentage does the u.s. import? *

Rate of return douglas keel, a financial analyst for orange industries, wishes to estimate the rate of return for two similar-risk investments, x and y. douglas's research indicates that the immediate past returns will serve as reasonable estimates of future returns. a year earlier, investment x had a market value of $27 comma 000; and investment y had a market value of $46 comma 000. during the year, investment x generated cash flow of $2 comma 025 and investment y generated cash flow of $ 6 comma 770. the current market values of investments x and y are $28 comma 582 and $46 comma 000, respectively. a. calculate the expected rate of return on investments x and y using the most recent year's data. b. assuming that the two investments are equally risky, which one should douglas recommend? why?