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The estimate of the population proportions is to be within plus or minus .10, with a 95 percent level of confidence. The best estimate of the population proportion is .15. How large a sample is required?
Describe what type of control chart you can use and how do you calculate the control limits to check if the software design process in this organization is in control.
The correlation between his test and the BDI was r =.14. Evaluate this correlation. What does this correlation tell us about the relationship between these two instruments?
4. Although most of us buy milk by the quart or half gallon, farmers measure daily production in pounds. Ayreshire cows average 47 pounds of milk a day with a standard deviation of 6 pounds. For Jersey cows, the mean daily production is 43 pounds wit..
What is the dependent variable? is the dependent variable and determine the correlation coefficient. Coefficient of correlation
Compute the pdf of continuous random variable Z where Z = X + Y and X is a continuous random variable uniformly distributed on [0, 2] and Y is a continuous random variable uniformly distributed on [0, 4]. Assume that X and Y are independent.
a machine fills cans of soda which are labeled 12 ounces according to a normal distribution with mean 12.1 ounces and
a sample of 66 women over the age of 50 used the new cream for 6 months. of those 66 women 30 of them reported skin
As part of your answer, draw a standard normal curve and shade the area under the curve that represented the answer to the question. What minimum score would a student need in order to score better than 77% of those taking the test?
Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and her level of aggression.
Bill calculates a linear correlation coefficient between two variable as 1.20. How would you interpret this?
The average gasoline price of one of the major oil companies in Europe has been $1.25 per liter. Recently, the company has undertaken several efficiency measures in order to reduce prices.
the egyptian air force brass believe that overweight pilots have slow reaction times. they attribute the poor
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