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You conduct a survey of a sample of 25 members of this year's graduating business students and find that the average GPA is 3.2. The standard deviation of the sample is 0.4. Over the last 10 years, the average GPA has been 3.0. Is the GPA of this year's students significantly different from the long-run average? At what alpha level would it be significant?
What is Bayesian sample size determination for ANOVA and regression with formula?
As the financial manager of ABC computers, you are ready to make some decisions. You are trying to see where revenues are going?is the company ready to expand, and if so, when?
Dr. Richmond, a psychologist, is studying the daytime television viewing habits of college students.
A five-year old study claims that selling prices of new homes / condominiums in the New York area have a normal distribution with mean = $180,000 and standard deviation = $40,000.
An aptitude test has a mean of 220 and standard deviation of 10. find the corresponding z score for:
How does the bell-shaped curve for the sampling distribution of sample means for samples of size n = 100 compare to the bell-shaped curve for the sampling distribution of sample means for samples of size n = 60?
If the net regression coefficients in the population are significantly different from zero, what can be included? No relationship exists between the dependent variable and any of the independent variables.
A job placement director claims that the average starting salary for nurses is 24,000.A sample of 10 nurses' salaries has a mean of 23, 450 and a standard deviation of 400. Is there enough evidence to reject the director's claim at 0.05 level of s..
A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12.
Number of STAT 200 textbook bundles you would order so that you stay below 5% probability of having to back-order from Pearson Custom Publishing?
Suppose that in fact 8% of the apples on the truck do not meet the desired standard. What's the probability that the shipment will be accepted anyway?
You have been hired as a consultant to Medlark. Your job is to determine how many tickets to sell. Explain your solution completely and write your recommendation to the company.
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