9. It is a procedure consisting of pertinent steps whose major objective is to be able to make a decision based on the data gathered. a. data gathering b. data testing C. statistical testing d. hypothesis testing ANSWER: RATIO: 10. What symbol represents population mean? a. B b. P С. Ні d. Ho ANSWER: RATIO:

The number of small diameter trees in a forest is of interest to a a private logging company. In order to determine the representative number of small diameter trees, the company is most likely to   1. take a sample nearest to the edge of the forest   2. take samples at different locations on the forest   3. tag all the the small diameter trees in the forest   4. take a census   5. take a sample in the middle of the forest

A programmer plans to develop a new software system. In planning for the operating system that he will​ use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 99​% confident that his estimate is in error by no more than three percentage points? Complete parts​ (a) through​ (c) below.       Question content area bottom Part 1 ​a) Assume that nothing is known about the percentage of computers with new operating systems.   n=enter your response here ​(Round up to the nearest​ integer.) Part 2 ​b) Assume that a recent survey suggests that about 90​% of computers use a new operating system.   n=enter your response here ​(Round up to the nearest​ integer.) Part 3

Explain why post-hoc comparisons are appropriate for the current analysis.  Also explain under what circumstances post-hoc comparisons would not have been appropriate.

A programmer plans to develop a new software system. In planning for the operating system that he will​ use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 99​% confident that his estimate is in error by no more than two percentage points question mark Complete parts​ (a)  a) Assume that nothing is known about the percentage of computers with new operating systems.