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Compute the confidence intervals of your data from the Week 4 Learning Team paper. Based on your confidence intervals, determine if you would change the conclusions given in your Week 4 Learning Team paper.
What is a discrete and continuous random variable? What is a probability distribution for a discrete random variable? Please provide examples to illustrate your answer? Please no textbook or internet examples, original examples only.
On a particular day during the most recent golf tournament, the organizer placed the whole (pin) in 0 back left corner of the green. 64 golfers played the hole with the new placement on that day. Find out the probability of the sample average numb..
An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by the local dealer. The customer relations department will survey a random sample of customers and compute a 99% confidence..
Find out the forecast value utilizing three month moving average method, weighted moving average method, exponential smoothing and regression methods.
Perform a posthoc test that is suitable if we assume that group 7 is a control group and that the other are different treatment groups and that we are only interested in finding significant treatments, not to compare them.
At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.
Sugar packaged by a certain machine has a mean weight of 5lb and a standard deviation of 0.02 lb. For what values of c can the manufacturer of the machinery claim that the sugar packaged by this machine has a weight between 5 - c and 5 + c lb with..
What type of sampling was this study? What is your analysis of this approach? What are the advantages and disadvantages of this approach.
What additional strategies (up to 3) you would propose that may increase validity of the findings.
The boys with certificates of recognition. What time would the boys need to beat in order to earn a certificate of recognition from the fitness association?
In an online survey of 4001 respondents, 8% were classified as productivity enhancers who are comfortable with technology and use the internet for its practical value. Suppose you select a sample of 400 students at your school, and the population ..
A manufacturer of athletic footwear claims that the mean useful lifetime of his product will exceed 50 hours. A random sample of 36 pairs of shoes leads to the following sample results, in terms of useful life: x = 52.3 hours and s = 9.6 hours.
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