# Question

Repeat Exercise 9.48 assuming that the means are 140 and 138, respectively.

Population 1: µ = 40, σ = 6

Population 2: µ = 38, σ = 8

Population 1: µ = 40, σ = 6

Population 2: µ = 38, σ = 8

## Answer to relevant Questions

A factory’s worker productivity is normally distributed. One worker produces an average of 75 units per day with a standard deviation of 20. Another worker produces at an average rate of 65 per day with a standard ...Repeat Exercise 9.7 with n = 25. A sample of n = 16 observations is drawn from a normal population with µ = 1,000 and σ = 200. Find the following.a. P (x̄ > 1,050)b. P (x̄ < 960)c. P (x̄ > 1,100)How many rounds of golf do physicians (who play golf) play per year? A survey of 12 physicians revealed the following numbers:Estimate with 95% confidence the mean number of rounds per year played by physicians, assuming ...In a survey conducted to determine, among other things, the cost of vacations, 64 individuals were randomly sampled. Each person was asked to compute the cost of her or his most recent vacation. Assuming that the standard ...The sponsors of television shows targeted at the children’s market wanted to know the amount of time children spend watching television because the types and number of programs and commercials are greatly influenced by ...Post your question

0