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1. What is the probability of X- lying between 49 and 50 for a random sample of 36 from a population with µ = 48 and O = 12?
2. What is the probability that the mean for a random sample of 144 accounts receivable drawn from a population of 2000 accounts with a mean of $10,000 and a standard deviation of $4000 will be between $9500 and $10,500?
Which gives an expected value of: (0.10)($100) + (0.90)($10) = $19.00. Compute the expected value for the "Reject Christ" decision and pick the "best" choice to make.
the rapid test is used to determine whether someone has hiv the virus that causes aids. the false-positive and
in a gallop poll 1010 adults were randomly selected and asked if they were satisfied or dissatisfied with the amount of
Under what situations on lambda1 and lambda2 will this system have the steady state distribution? Describe your answer.
question over a period of years a toothpaste has received a mean rating of 5.9 on a 7-pointscalefor overall customer
suppose z is standard normal random variable. calculate the following possibilities.a.pzgt1.5b.p-0.33 ltz lt1.33c. pz
the table below gives information on coded length measurements in a machining process. the data shown are macrx and r
State the decision rule. Compute the value of the test statistic. What is your decision regarding the null hypothesis?
investigators designed a physical activity intervention to increase physical activity at school and at home. they also
What if the size for each sample were increased to 20? Would a sample mean of 115 or more be considered unusual? Why or why not? Why is the Central Limit Theorem used?
The probability that a randomly selected elementary or secondary school teacher from a city is female is 0.68, holds a second job is 0.38, and is female and holds a second job is 0.29.
If a simple random sample of 50 players was taken, what is the probability that the sample mean will exceed $210,000?
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