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Q1) Polo Development Firm is building a shopping centre. It has informed renters that their rental spaces will be prepared for occupancy in 19 months. If expected time until shopping centre is completed is evaluated to be 14 months, with standard deviation of 4 months, find out the probability that renters will not be able to reside in in 19 months?
Q2) Quality control manager for ENTA Inc. should decide whether to accept (a1), further analyze(a2), or reject (a3) lot of incoming material. Suppose following payoff table is available. Historical data points out that there is a 20% chance that lot is poor quality (s1), a 50% chance that lot is fair quality (s2), and 30% chance that the lot is good quality (s3)
S1
s2
s3
A1
20
30
90
A2
60
70
10
80
50
40
a) Compute expected value for each of three actions and find out if manager must accept, further analyze, or reject the lot?
b) Determine expected value of perfect information (EVPI)?
Table shows the smoking habits of group college students. If student is selected at random, determine the probability of getting someone who is man or a woman.
Conclude whether the given conditions justify using the methods of this section when testing a claim about a population mean µ.
In the history class the mean score was 76 with standard deviation 3.
Answer all of these questions using R Commander. Include all graphs, outputs from R Commander.
Which of the given is the example of a discrete random variable? Which of the given is an example of continuous random variable?
Determine her weighted mean grade? What letter grade did she earn? (A, B, C, D or F).
Her results (in hours until turning a particular shade of brown) are in the table below. At ∞= .01, did she see a difference between the two treatments?
It was reported that 20 readers responded and 87% said "no" while 13% said "yes." Recognize 4 major flaws in this survey.
A psychologist claims that more than 6.3% of the populations suffer from professional due to greate shyness. Categorize the Type II error in this context.
Is there a difference in the mean allowances nationally and the mean allowances in northwestern Ohio for nine-year-olds?
Carry out an ANOVA and describe in detail in a BPS-formatted Results section:
A quality control engineer is interested in the mean length of sheet insulation being cut automatically by machine. The desired length of the insulation is 12 feet. It is known that the standard deviation in the cutting length is 0.15 feet. A sam..
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