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Q1) Annual commissions earned by sales representative of machine products, Inc., a manufacturer of light machinery , follow normal probability distribution. The mean yearly amount earned is= $40,000 and standard deviation is $5,000
a) What percent of sales representatives earn more than $ 42,000 per year?
b) What percent of sales representatives earn between= $32,000 and $42,000?
c) What percent of sales representatives earn between= $32,000 and $35,000?
d) Sales manager wishes to award sales representatives who earn the largest commissions a bonus of= $1,000 .He can award bonus to 20% of representatives. Determine cutoff point between those who earn bonus and those who don't?
By using the maximax criterion, what decision should be made by the decision maker?
An SRS of 100 of a certain popular model car in 1993 found that 20 had a certain minor defect in the brakes. An SRS of 400 of this model car in 1994 found that 50 had the minor defect in the brakes. Let p1 and p2 be the proportion of all cars of t..
What is the P-value of the test, assume the standard deviation is 3 years, a 95% confidence interval for the average time
Determine the mean number of times the machine was used per day.
Assuming the nurses surveyed were a random sample from the population of all nurses in the United States, we can use these data to test the null hypothesis H0 that there is no association between the row and column variables in this two-way table...
Distinct random variable
Then use ogive to estimate median and first and third quartiles. Also utilize it to reply following question: What percent of 60 mutual fund loads are less than 75.
If is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then the probability that fewer than 30% buy a packet after tasting a free sample is approximately.
Assume that the number of left-handers is a binomial random variable. (Refer to the formula for mean and standard deviation for binomial prob. Distribution)
Some researchers have conjectured that stem-pitting disease in peach tree seedlings might be controlled with weed and soil treatment. An experiment was conducted to compare peach tree seedling growth with soil and weeds treated with one of two her..
Which is the probability that the median of the sample is between $17 and $20?
The researchers planned to use simple linear regression to see if the age at which a baby was first able to crawl could be predicted from the average outdoor temperature six months after each baby's birthdate.
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