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The following information is available.
H0: μ = 68 H1: μ ≠ 68
The sample mean is 66, and the sample size is 32. The population standard deviation is 5.
Use the .10 significance level.
What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
Value of the test statistic =
What is the p-value? (Round z value to 2 decimal places and final answer to 4 decimal places.)
What percent of sales representatives earn more than $42,000 per year?
Equation of the regression line - Evaluate the equation of the regression line and Find y' when x=47 years.
Explain in words general pattern of correlation is statistically important.
The standard deviation of the population of adult female height scores is 3 inches. A random sample of 50 women yields a mean height of 64 inches. Calculate the standard error of the mean.
If 50 cups of coffee were measured, what is the probability that: The sample mean per cup is less than 7.8 ounces?
Evaluate percentage of households in town with one or more cars; attach standard error to be evaluate. If this is no possible, describe why not.
At.05 significance level is it reasonable to conclude that it takes longer to determination software issues? Determine the p-value?
Solve the mean and standard deviation equations
One state lottery has 1000 prizes of $1, 200 prizes of $5, 50 prizes of $25, 15 prizes of $150, 4 prizes of $500, and 1 prize of $2500. What is the lottery expected profit per ticket?
Find the standard normal area for each of the following: (Round the answers to 4 decimal places.)
Create a histogram over five class intervals.
To evaluate average annual expenses of students on books and class materials sample size 36 is taken.
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