2. What is the level of measurement for these items related to the newspaper business? (page 14)

a. The number of papers sold each Sunday during 2004.
b. The departments, such as editorial, advertising, sports, etc.
c. A summary of the number of papers sold by county.
d. The number of years with the paper for each employee.

6. Explain the difference between a sample and a population. (page 19)

14. The following chart shows the selling price ($000) of houses sold in the Billings, Montana, area. (page 40)

26. The following data give the weekly amounts spent on groceries for a sample of households. (page 47)

18. The following are the ages of the 10 people in the video arcade at the Southwyck Shopping Mall at 10 A.M. this morning. For Exercises 16-19, (a) determine the median and (b) the mode. (page 65)

[See the attached question file for all the questions.]

Q1: Why does the sample size play such an important role in reducing the standard error of the mean? What are the implications of increasing the sample size?
Q2: Why might one be interested in determining a sample size before a study is undertaken? How do population variability and a level of certainty affect the size of

Please help answer the following multiple choice questions.
Which of the following sampling techniques can assure that the profile of the sample matches the profile of the population?
Simple random sampling
Systematic sampling
Cluster sampling
Stratified sampling
Which of the following types of level mea

What are the characteristics of a population for which it would be appropriate to use mean/median/mode? When would the characteristics of a population make them inappropriate to use?

In which of the following sampling techniques does each member of the population have an equal and independent chance of being selected to be part of the sample?
Cluster sampling
Stratified sampling
Simple random sampling
Systematic sampling
Which of the following types of level of measurement conveys the mo

A sample mean, sample size, and population standard deviation are given. Use the P-value approach to perform a one-mean z-test about the mean of the population from which the sample was drawn.
x bar= 78, n = 28, sigma = 11, Hnought: mu=72, Hone: mu>72 , alpha = 0.01
First find the proper z value then use this to find the

In a sample of 30 randomly selected women, it was found that their mean height was 63.4 inches. From previous studies, it is assumed that the standard deviation is 2.4.
1) Determine the minimum required sample size to construct a 99% C.I. for the population mean if estimate must be within .8 inch of the population mean.

The null and alternate hypotheses are:
H0: mean of 1 is equal to the mean of 2
H2: mean of 1 is not equal to the mean of 2
A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample of 17 observations from the second population reveale

Nielsen Media Research has been rating television programs for nearly 50 years. Nielsen uses several sampling procedures, but its main one is to track the viewing pattern of 5000 households. These contain over 13,000 people and are chosen from a cross section of the overall population. The households represent various locations,

Find the appropriate minimum sample size: You want to be 95% confident that the sample variance is within 40% of the population variance. Sample size must be an integer.