Question

QNT 561:


I want the Statistics question problems for chapter 3 and chapter 5 from the book "Statistical techniques in business and Economics" by Lind, Marchel and Wathen. Can somebody give the questions? Thanks.

Answer 1

A recent survey reported in BusinessWeek dealt with the salaries of CEOs at large corporations
and whether company shareholders made money or lost money.
CEO Paid More CEO Paid Less
Than $1 Million Than $1 Million Total
Shareholders made money 2 11 13
Shareholders lost money 4 3 7
Total 6 14 20
If a company is randomly selected from the list of 20 studied, what is the probability:
a. the CEO made more than $1 million?
b. the CEO made more than $1 million or the shareholders lost money?
c. the CEO made more than $1 million given the shareholders lost money?
d. of selecting 2 CEOs and finding they both made more than $1 million?

Answer 2

For each of the following rejection regions, sketch the sampling distribution for z and indicate the location of the rejection region, and determine the probability that a type 1 error will be made.