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The rate of return for na investment can be described by a normal distribution with mean 47% and standard deviation 3%. What is the probability that the rate of return for the investment exceeds 53%?
question do students at your school study more less or about the same as at other business schools? business
Suppose a small bicycle manufacturer makes cheap bikes that sell for 180$ each. The total cost of producing x bikes (in $) is given by c(x)=6000+240x-0.8x^2, where x is up to 200 bikes.
the makers of a soft drink want to identify the average age of its consumers. a sample of 55 consumers was taken. the
1.an experiment was conducted to examine the yield of six different types of alfalfa. they were planted in four
Construct a 99% confidence interval for the difference between the true average boot times of the two types of hard drives. Assume the difference will represent (HDD-SSD) and that the population standard deviations are statistically the same.
Suppose these data represent whole population. Determine the population mean and population standard deviation.
When calculating correlation coefficient, what does a value of -2 indicate? Strong negative correlation, Weak negative correlation.
A quality inspector is interested in the time spent replacing defective parts in one of the company's products. The average time spent should be at most 20 minutes per day according to company standards.
If 25 loads are chosen at random for a weight check, find the probability that the mean weight of those loads is less than 44.24 tons. Assume that the variable is normally distributed.
q1.what are the four essential requirements of a distance measure as might be used in cluster analysis multidimensional
the mean resting pulse rate for a large group of varsity athletes was 72 with a standard deviation of 9.46. what
How many, if 2 of the men refuse to serve together? = 56 (c): How many, if 2 of the women refuse to serve together? = 50 (d): How many, if 1 man and 1 woman refuse to serve together?
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