# Question: Your automatic transmission factory has had some problems with quality

Your automatic transmission factory has had some problems with quality. You have decided to gather information from tomorrow’s production for careful evaluation. For each of the following sampling methods, say if the procedure is good, acceptable, or unreasonable. Give a reason for your choice.

a.* The first 5 transmissions produced.

b. The 18 transmissions that are sitting outside the plant because they never worked.

c. Every 20th transmission produced.

d. A random sampling taken at the end of the day using the day’s production as a frame.

e. All obviously defective transmissions together with a random sampling of the apparently normal ones

a.* The first 5 transmissions produced.

b. The 18 transmissions that are sitting outside the plant because they never worked.

c. Every 20th transmission produced.

d. A random sampling taken at the end of the day using the day’s production as a frame.

e. All obviously defective transmissions together with a random sampling of the apparently normal ones

**View Solution:**## Answer to relevant Questions

At a medical clinic, patient office visits are found to last a mean time of 17 minutes, with a standard deviation of 10 minutes. Assume that the probability distribution of time is independent from one patient to another. a. ...Your customers’ average order size is $2,601, with a standard deviation of $1,275. You are wondering what would happen if exactly 45 typical customers independently placed orders tomorrow. a.* Find the mean of tomorrow’s ...A random sample of 50 recent patient records at a clinic shows that the average billing per visit was $53.01 and the standard deviation was $16.48. a.* Find the standard error of the average and interpret it. b. You feel ...You have chosen a sample of 25 supermarkets out of the 684 you have responsibility for. These 25 have been inspected, and the number of violations of company policy has been recorded. For each of the following quantities, ...Do exercise 8 using the binomial proportion p in place of X. a.* Find the binomial X for the gender variable (counting the number of females) and interpret it. b.* Find the standard error of X and interpret it. c. Find the ...Post your question