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Assume that the numbers X of hours of sunshine per day in a city has a chi-square distribution with 10 degrees of freedom. The profit from selling food at an outdoor cafe depends on the number of hours of sunshine through the formula, Profit = 1000(1-(e-x/10)). Find the expected level of profit.
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots
Compute the skewness for your data set using Pearson's
Obtain a test statistic and p -value. Interpret the results at α = .01.
Determine if there is a linear correlation between annual income and the amount of insurance? What is the linear regression line for this data?
By using the maximax criterion, what decision should be made by the decision maker?
The manager requires the estimate to be within 1.0 minutes of the population value. What sample size is needed?
You are the production manager of a company. Parachutes are woven in your factory using a synthetic fiber purchased from one of four different suppliers. The most important outcome for parachutes is strength of the fabric.
The Wilcoxon rank sum of the ranks for group and The value of the Wilcoxon signed rank statistic
What are the expected value and variance of the following probability distribution?
Define the rejection region. State the statistical decision.
Describe what you find then produce an ANOVA for the problem.
At α = 0.01 level of significance, test the hypothesis that these data can be described by a Poisson pdf.
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