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A needs assessment survey has been distributed in a large corporation. Employees have been asked if they thought that a new policy of casual dress on Fridays would boost company morale. Use column percentages, the maximum difference, and measures of association to describe the strength and direction of the association between the type of employee and attitude toward casual Fridays. Write a few sentences describing the relationship.
Find the mean and standard error of the sample means that is normally distributed with a mean of 10 and a standard deviation of 2 and a sample size of 25.
Seven hundred and seventy-one distance learning students at Long Beach City College responded to surveys in the 2010-11 academic year.
Can a test of significance show a statistically significant relationship while a measure of association shows a weak relationship between the variables?
Suppose population standard deviation for those drinking regular coffee is 1.20 cups per day and 1.36 cups per day for those drinking decaffeinated coffee.
Read the scenario related to identifying variables and developing problem statements and then answer the three questions.
A psychologist operating a group home for delinquent adolescents needs to show that the home is successful at reducing delinquency. He samples 10 adolescents living in their own homes who have been identified by the police as having problems, 10 s..
he Bureau of Labor Statistics provides compensation information on and services for various positions. As of May 2008, the national average salary for an RN (registered nurse) was $65,130. Suppose the standard deviation is $9385. For a random sample ..
A survey of 34 students at the Wall College of Business showed the following majors: What is the probability he or she is a management major?
the monthly earnings of computer programmers are normally distributed with a mean of 4000. if only 1.7 of programmers
Suppose 20% of the people in a city prefer Pepsi-Cola as their soft drink of choice. If a random sample of six people is chosen, the number of Pepsi drinkers.
One interesting question is are the average compa-ratios equal across salary ranges of 10K each. While compa-ratios remove the impact of grade on salaries, are they different for different pay levels, What is the data input ranged used for this que..
Using one mean t test to determine whether or not to support the claim - hypothesis test that WORKS THE SAME as the z-test
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