Author Question: One of the major challenges for developing a good written questionnaire or telephone survey ... (Read 139 times)

chads108 · **on:** Jun 24, 2018

One of the major challenges for developing a good written questionnaire or telephone survey instrument is that:

A) nonresponses are too high.
B) there will always be missed data.
C) bias cannot be controlled.
D) wording can influence responses.

Question 2

A report in a consumer magazine indicated that with 90 percent confidence, the mean number of hours that a particular brand light bulb lasts is between 900 and 1,100 hours. Based on this, the sample mean that produced this estimate is 1,000 hours.

Indicate whether the statement is true or false