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1. What are the assumptions of the simple linear model?
2. Name three assumptions of the ANOVA test?
If you test the null hypothesis at the 0.01 level of significance, is there evidence that the new process has reduced turnaround time? Interpret the meaning of the p-value in this problem.
A teller can process an average of 100 customers per hour, which also can be modeled by a Poisson distribution. If there is one teller on duty, determine:
Can the president conclude that the average family income at his school is significantly different than the population mean family income of the reported university?
in a group of 15 batteries 6 are dead. you chose 2 at random. the expected number of good batteries is 1.2. what is the
uppose that the protion of all invoices that were paid late is 20 percent. In a random sample of 140 invoices, determine the probability that more than 28 percent invoices were paid late.
What is the difference between using a hypothesis test to solve a problem and using an Analysis of Variance test (ANOVA) to solve a problem? Give an example of each.
New car manufacturer claims that miles per gallon for gas consumption is mound shaped and symmetric with a mean of 25.9 mpg with a standard deviation of 9.5 mpg.
You wish to find out if negative relationship exists between amount of bottled water someone drinks and their water bill. Create a prediction model, if suitable.
A sample from a population with μ = 40 and =σ10 has a mean of m = 44. if the sample mean corresponds to a z = 2.00, then how many scores are in the sample?
suppose we want to determine the binomial probabilityp of getting 3 heads in 13 flips of a 2-sided coin. what values of
a packet of sunflower seeds states that each seed will germinate with probability 0.7. a gardener randomly selects 6
1. the labor relations manager of a large corporation wished to study the absenteeism among workers at the companys
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