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The weekly demand for a product follows a normal curve with an average of 1000 units and a standard deviation of 200 units. In how many weeks during a typical 52-week year would be above 800 units?
Create a hypothesis and perform a series of tests to determine if there is any fundamental difference in the findings.
Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer.
What is the probability that the cereal would be high calorie? In other words, what is P (high calorie)?
Below are one hundred pseudorandom numbers from a uniform pdf. Set up and test the appropriate goodness-of-fit hypothesis. Let α = 0.05.
If the computed value for this problem is +2.33, and the level of significance is 0.05, can we conclude that the recall proportions for the two commercials are same?
To find out the alternate hypotheses also critical value. A truck dealer claims where a new model will give trouble free service for at least 15,000 miles.
Estimate the population means growth in 1 year for 14-year-old boys. Make a point estimate and an 80% confidence interval estimate.
A sample of 25 students enrolled in the university indicates that X (bar) = $315.4 and s = $43.20.
Create a histogram over five class intervals.
Determination of Nominal, Ordinal, Interval, Ratio.Temperature is an example of what level of measurement.
For which of given variables must a "two tail" t-test be applied?
Can we conclude that there is a positive association between the size of the home and the selling price? Use the .05 significance level.
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