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The annual commissions earned by sales representatives of Machine Products, Inc. a manufacturer of light machinery, follow the normal probability distribution. The mean yearly amount earned is $40,000 and the standard deviation is $5,000.
a) What fraction of the sales reps earn more than $45,000 per year?
b) What fraction of the sales reps earn between $35,000 and $45,000?
c) What fraction of the sales reps earn between $33,000 and $35,000?
d) The sales manager wants to award the sales representatives who earn the largest commissions a bonus of $1,000. He can award a bonus to 25 percent of the representatives. What is the cutoff point between those who earn a bonus and those who do not?
two uninsulated rigid tanks contain air. initially tank a holds 1 lbm of air at 1440degr and tank b has 2 lbm of air at
suppose n90000 n18000 s50a. compute the standard error of xbar using the finite population correction factor.b. repeat
consider taking samples of size 25 from a population with proportion 0.65.a find the mean of the distribution of sample
At the start of the study the mean of the group was 24 and the end of the study the mean of the group was 30. The standard deviation of the difference scores was 12.0 and we had 16 subjects.
Biting an unpopped kernel of popcorn hurts! As an experiment, a self-confessed connoisseur of cheap popcorn counted 773 kernels and put them in a popperAfter popping, the unpopped kernels were counted
Suppose that 1% of all people have a particular disease. A test for the disease is 99% accurate. This means that a person who test positive for the disease has a 99% chance of actually having the disease
Find a 90% confidence interval for the population mean salaries of such personnel. Round your answer to the nearest dollar and don;t forget to use the $ sign.
Discuss why sampling is essential to many research designs, and why, if done correctly may be more accurate than attempting census measurement.
From the above function, it can be said that the expected yearly income of and find the multiple coefficient of determination
What is the probability that the income is between $1,000 and $1,800? (Be able to draw a graph to illustrate your results)
What was the research question for the systematic review summarised in this Extract and what are the study factor and the primary outcome factor?
Using part(a), explain to investor differences between distribution of performance figures for the 2 kinds of stock funds.
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