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Several questions to solve I can copy and paste. first question from the ALEKS lab homework. 1.-A company has salespeople. A board member at the company asks for a list of the top salespeople, ranked in order of effectiveness. How many lists are possible? Assume that the order of the salespeople on the list is relevant.
Random sample of workers at each of three plants. Research question: Are the mean hourly productivity levels the same for workers in these three plants?
BMI in children is approximately normally distributed with a mean of 24.5 and a standard deviation of 6.2. A BMI between 25 and 30 is considered overweight. What proportion of children are overweight?
Data is given in the table below. Process data as illustrate in the paper on the Mann-Whitney U test. Critical Value:Test Statistic (Show procedure.)Z .
A restaurant has an ice cream counter where it sells two main products, ice cream and frozen yogurt. The restaurant makes one order for ice cream and yogurt each week, and the store has enough space for 115 gallons of both products.
Use Hypothesis Testing and the data in the course materials folder to analyze the difference in milk production in California. Formulate both a numerical and verbal hypothesis statement regarding your research issue.
Automobiles arrive at the drive-through window at a post office at the rate of 4 every 10 minutes. The average service time is 2 minutes. the Poisson distribution is appropriate for the arrival rate and service times are exponentially distributed.
What is wrong with only inspecting the peaches on the top of the barrel? How could you improve your inspection process?
Iif the sample consits of 16 scores, is the sample mean sufficient to conclude that the treatment has a significant effect? use a two tailed test with .05.
Why do we need a new test method to compare the means of 3 or more populations? Why can't we just use a series of z-tests or t-tests to compare all of the possible pairs of population means to see if one (or more) is different?
"Factorial" means that the treatments are formed from more than one factor. What are the factors? What do "double-blind" and "placebo-controlled" mean?
Compute the correlation among the variables. Describe perfect correlation also negative correlation. Utilize the following data to answer questions related.
A decision maker is working on a problem that requires her to study the uncertainty surrounding the payoff of an investment. There are three possible levels of payoff -$1,000, $5,000, and $10,000.
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