Standard normal distribution
The t distribution has more area in the tails and less in the center than does the standard normal distribution
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The following data is the Square Footage (in Thousands of Square Feet) and Annual Sales (in Millions of Dollars) for a Sample of 14 branches of Sunflowers Apparel. Construct a scatter plot
The following data is the Square Footage (in Thousands of Square Feet) and Annual Sales (in Millions of Dollars) for a Sample of 14 branches of Sunflowers Apparel. Construct a scatter plot. Determine the Correlation Coefficient
If we are testing for the difference between the means of 2 related populations with samples of n1 = 30 and n2 = 30, the number of degrees of freedom is equal to
When we say a statistical test procedure is not robust, that means
The average tenure of technicians at ABC Company is 10 years with a standard deviation of 5 years. Calculate the z-score and determine the corresponding percentage for the following question. Please show work and the formulas
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Complete the hypothesis for a proportion test. Show all steps Null and alternate hypothesis, diagram, critical value, test statistic. Reject or do not reject conclusion.
A simple random sample of 1862 births of Chinese babies resulted ina mean birth weight of 3171g and a standard deviation of 428g. Use a 0.01 significance level to test the claim that the mean birth weight of Chinese babies is less than the mean bi
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