Questions from Business Statistics

Q: Assume that the population proportion is .44. Compute the standard

Assume that the population proportion is .44. Compute the standard error of the proportion,
, for sample sizes of 500,000; 1,000,000; 5,000,000; 10,000,000; and 100,000,000. What can you say about th...

Q: A student government organization is interested in estimating the proportion of students

A student government organization is interested in estimating the proportion of students who favor a mandatory “pass-fail” grading policy for elective courses. A li...

Q: Recently, management at Oak Tree Golf Course received a few complaints

Recently, management at Oak Tree Golf Course received a few complaints about the condition of the greens. Several players complained that the greens are too fast. Rather than react to the comments of...

Q: The County and City Data Book, published by the Census Bureau

The County and City Data Book, published by the Census Bureau, lists information on 3139 counties throughout the United States. Assume that a national study will collect data from 30 randomly selected...

Q: The following stocks make up the Dow Jones Industrial Average.

The following stocks make up the Dow Jones Industrial Average. Suppose you would like to select a sample of six of these companies to conduct an indepth study of management practices. Use the first t...

Q: The Wall Street Journal provides the net asset value, the year

The Wall Street Journal provides the net asset value, the year-to-date percent return, and the three-year percent return for 882 mutual funds at the end of 2017. Assume that a simple random sample of...

Q: Discuss the differences between statistics as numerical facts and statistics as a

Discuss the differences between statistics as numerical facts and statistics as a discipline or field of study.

Q: A partial relative frequency distribution is given. /

A partial relative frequency distribution is given. a. What is the relative frequency of class D? b. The total sample size is 200. What is the frequency of class D? c. Show the frequency distributio...

Q: A questionnaire provides 58 Yes, 42 No, and 20 no

A questionnaire provides 58 Yes, 42 No, and 20 no-opinion answers. a. In the construction of a pie chart, how many degrees would be in the section of the pie showing the Yes answers? b. How many degre...

Q: In a recent report, the top five most-visited English

In a recent report, the top five most-visited English-language websites were google.com (GOOG), facebook.com (FB), youtube.com (YT), yahoo. com (YAH), and wikipedia.com (WIKI). The most-visited websit...