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Question: 1. Briefly explain when a one-way ANOVA procedure is used to make a test of hypothesis.
2. Describe the assumptions that must hold true to apply the one-way analysis of variance procedure to test hypotheses.
use a x2 test of association to test the claim that in the given contingency table the row variable and the column
Four brands of lightbulbs are being considered for use in the final assembly area of the Saturn plant in Spring Hill, Tennessee. The director of purchasing asked for samples of 100 from each manufacturer.
Set up the null and alternative hypotheses, and perform the hypothesis test with a significance level of 0.05.
find the standard normal area for each of the following round your answers to 4 decimal places.standardnormal areaa
Decrease your sales price by $5 in order to increase sales by 5,000 units. Which of the above alternatives would your choose to increase profits?
a sociologist wants to determine the current percentage of households using e-mail. how many households surveyed in
the volumes of soda in quart soda bottles are normally distributed with a mean of 32 oz. and a standard deviation of
What is the probability that a randomly selected respondent plans to increase use of social media - What is the probability that both cards are heartshearts?
in an experiment to study the effect of a particular drug on the number of errors in the maze-learning behavior of rats
A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho = 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.
At the 0.01 level of significance, does the machine appear to be in need of maintenance and calibration? Determine and interpret the p-value for the test.
consider a normal population with a mean of 10 and a variance of 4. find px
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