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Women's heights are normally distributed with mean of 63.5in and standard deviation of 2.8in. Men's heights are normally distributed with a mean of 67.7in and standard deviation of 2.9in.
Height requirement for the amusement park has a minimum of 4ft 9in and max of 6ft 4in. Find the percentage of women meeting and requirement, men meeting the height requirement and if the requirements are changed to exclude only the tallest 5% of men and the shortest 5% of women, what are the new min and max height requirements? Please show solution.
Identify Ho and Ha for this study, conduct the appropriate analysis, and should Ho be rejected? what should the researcher conclude?
The regression of Y on X predicts? When predicting Y, adding a second predictor variable to the first predictor variable X.
the following table shows part of the probability distribution for a random variable x.x fx0 0.21 ?2 0.153 ?4 0.15a.
A sample of 15 workers revealed the following number of minutes traveled. Develop a 98 percent confidence interval for the population mean. Interpret the result. Please explain how you calculate.
The data on the daily consumption of fuel by a delivery truck, in gallons, recorded during 25 randomly selected working days, are as follows:
based on a random sampleof 25 units of a product the sample mean is 102 pounds with a standard deviation of 10 pounds.
Based on the information, what decision should the director make about the books used for the courses if the goal is to keep the cost below $300?
Shown below are the results of a one sample t test. Make up a problem that someone could solve using the printout. Do not make up the data. Just assume the data were collected and produced the given statistics.
How do you find the z-score corresponding to a score of X = 100 for the distributions given below? How do you know what direction they are going?
Find the 90% confidence interval for the mean, variance, and standard deviation for the price in dollars of an adult single-day ski lift ticket.
Preliminary results indicate that once a golfer has checked in, there is only at 20% chance that he or she will be a no-show. This chance of being a no-show can be modeled using the binomial distribution.
in the basic economic order quantity eoq model a doubling of estimated annual demand would lead to what change in
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