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What are examples in which non-parametric tests are used to analyze business related problems in general, and more specifically, problems related to marketing?
Concept of statistical signi cance
What can be done to remedy multicollinearity? Use ANOVA instead of Regression.
A car insurance compancy has recorded the number of claims for the past quarter by age and gender. The information is recorded below.
In a shipment of 52 vials, only 12 do not have hairline cracks. If you randomly select 2 vials from the shipment, what is the probability that none of the 2 vials have hairline cracks?
The mean annual salary paid to all employees in a company was EURO 30.000. The mean annual salaries paid to male and female employees of the company were EURO 32.000, and 24.000, respectively. Determine the percentage of males and females employed..
Does this sample indicate a smaller average? Use α = 0.05 and assume a normally distributed population.
A nursing school wants to estimate the true mean annual income of its alumni. It randomly samples 120 of its alumni. The mean annual income was $58,700 with a standard deviation of $1,500.
Is there a meaningful relationship between grades and SAT scores? If a student scores a 450 on the SAT what will her GPA be?
Chi square compares actual data with expected data. What would the expected data be? For example, if I know the percentage of brown M&Ms in a bag is 40% set by the company
he length of time a person spends waiting in a physician's office for an appointment can be a frustrating experience. The results below are the responses of internists from two multispecialty group practices to the following question:
The weights (in grams) of four different colors of M&M candies are given below, along with the mean weight and variance of each color, and the variance of the sample means.
At the .01 significance level, is there a relationship between job pressure and age?
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