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In 1997, 39.4% of men had made orders by phone in the last 12 months a market research analyst feels that this percentage has declined because of internet purchases. she obtains a random sample of 500 men and determines that 191 of them have made orders by phone in the last 12 months. using alpha=0.05 level of significance 1 compute the test statistic 2 make a conclusion about the hypotheses bases on your result( not why, should be it means) Required minimum-1 page
Create and attach a normal curve to this document with the following elements: the normal curve, a label of the average number of shoppers, and labels for the sample means of 441 and 446 shoppers. Include all the appropriate symbols.
Sun Love grapefruit growers have determined that the diameters of their grapefruits are normally distributed with a mean of 4.5 inches and a standard deviation of 0.3 inches.
Mean of 61 minutes and a standard deviation of 9 minutes. Find the proportion of runners who take more than 70 minutes to finish. Draw a sketch to show this proportion.
Construct a 95% confidence interval estimate for the population proportion of administrative professionals who prefer cash bonuses.
Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. What is the margin of error?
To explain this, be sure to explain whether the null hypothesis should be rejected, the likelihood of that decision being an error, and why it might have been an error.
Employee theft or poor inventory control and that employee theft and poor inventory control are equally likely? Use the .02 significance level.
What is the probability of drawing two diamonds after discarding 5 and 7.
The probability that an American CEO can transact business in a foreign language is .20. Ten American CEOs are chosen at random.(Round your answers to 4 decimal places.)
Frequent checks of unfilled orders at end of day reveal that distribution of unfilled orders follows Poisson distribution with mean of two orders. Sketch the histogram representing Poisson probability distribution of unfilled orders.
What role does a financial department play in valuing business opportunities and what are some of the key financial concepts that valuation work must consider?
What is the point estimate of the mean planned expenditure by all Americans taking long summer vacations in 2002?
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