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1. What is an independent (non related) sample? What is a related (dependent) sample? When should researchers use different hypothesis tests for independent and related samples? Is one type of sample preferable over the other? Provide an example of an independent sample and or a related sample that might be appropriate for use in healthcare management. Explain rationale.
2. Why is the F distribution important? How do you determine if a significant difference exists among the groups in ANOVA? How do you determine differences between the groups in ANOVA? ANOVA are easy to construct. Provide an example using either a personal or professional experience.
Which combination of factors has greatest likelihood of rejecting null hypothesis?
Research question : At α = . 01, is degree of certainty independent of credits earned?
At.05 significance level, is there a difference in mean number of calls per day between 2 employees? Compute the p -value?
Develop a 90% confidence interval for the true mean weight. What sample size would be necessary to estimate the true weight with an error of +/- 0.03 grams with 90% confidence?
There are two car dealerships in a particular region. The mean monthly sales at the two dealerships are about the same. Though, one of the dealerships (dealership A) is boasting to corporate headquarters that his dealership's monthly sales are mor..
The use of linear regression is a critical tool for a manager's decision-making ability. Please carefully read the example below and try to answer the questions in terms of the problem context.
The registrar of a college with a population of N=4,000 full-time students is asked by the president to conduct a survey to measure satisfaction with the quality of life on campus.
What is the probability that a randomly selected cell phone bill is more than $67.75?
Continuous random variable is uniformly distributed between a and b. The probability density function between a and b is.
Illustrate what decision should be made depended on the mini-max regret criterion. Decision based on the Mini-max criterion.
For each of the following, identify the scale of measurement (NOIR) and the best measure of central tendency for the data.
An ANOVA procedure is used for data that was obtained from four sample groups each comprised of five observations. The degrees of freedom for the critical value of F are:
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