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Assume the random variable x is normally distributed with mean u = 88 and standard deviation o = 4. Find the indicated probability. P(x<83). (round to 4 decimal places as needed).
Sample data are reported for 50 employees of small companies, 75 employees of medium companies, and 100 employees of large companies.
The standard hemoglobin reading for normal males of adult age is 15 g/100 ml. The standard deviation is about 2.5 g/100 ml. For a group of 36 male con- struction workers, the sample mean was 16 g/100 ml. Construct a 95% confidence interval fo..
Normally distributed with the mean income of $30,000 and standard deviation of $3,000. Determine the income which separates top 25% from lower 75% of incomes?
one class of 40 students complain that they were harshly graded in the examination as l0 students received A or B ; 17 received a C ; and the rest received a D or lower. QUESTION: Is the class's complain about harsher grading justified? ( use a : 0..
Let X equal the number of "ones" if a fair dice is tossed two independent times by someone out in the hall. If X=x that person gives the player a bowl consisting of 10-3x red chips and 3x white chips.
an industrial relations expert on academic and non-academic staff has been studying the relationship between gender
Draw the scatter diagram. Does it appear that x and y are related? If so, how? Test to determine whether there is evidence of a linear relationship
for r = 1, 2, 3, .... Also, use this recursion formula and the fact that μ0 = 1 and μ1 = 0 to find μ2,μ3, and μ4, and verify the formula given for α3 in Exercise 35.
A company producing a standard line and a deluxe line of dishwasher has the following time requirements (in minutes) in departments where either model can be processed
question below is the sample of baby deliveries in an 8 hour period at a small hospital13 14 6 12 13 8 6 14 4 78 7 5 9
Next year the company wants to produce a total of 800 desks. Determine the production order for each plant for the forthcoming year if the total cost for each pant is to be the same.
a random sample of stat200 weekly study times in hours is as follows 4nbspnbsp 14nbspnbsp 15nbspnbsp 17nbspnbsp 20a.
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