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LA Magnet schools will accept students whose IQ scores are in the 99th percentile only. If IQ scores have a normal distribution with a mean of 100 and standard deviation of 15, what is the minimum score a student must have to be admitted?
A sample of 20 pages was taken without replacement from the 1,591-page phone directory Ameritech Pages Plus Yellow Pages On each page, the mean area devoted to display ads was measured (a display ad is a large block of multicolored illustrations, map..
A health care professional wishes to estimate the birth weight of infants. How large a sample must she select if she desires to be 90% confident that the true mean is within 6 ounces of the sample mean?
Determine a 90% confidence interval estimate of the mean head circumference of all two-month-old babies.
1.as the degrees of freedom become larger the difference between the t and z distributions becomesa.narrowerb.stays the
A researcher claims the average American drinks 52 gallons of cola per year with a population standard deviation of 2.0 gallons. We sample 25 random people and find the mean yearly consumption was 49 gallons.
in the game of ludo a player has to throw one die and move a selected token based on the number shown on the die. if a
What is the formula is for a population with a mean of u=60 and a standard deviation of sigma=24. Find the z score corresponding to the sample m=63 for a sample of n =16 scores,.
If one NBA player is selected at random, find the probability that this player is either 7 feet tall or weighs over 200 pounds.
Compute the probability that 8 or more women would be laid off at random. Based on your answer, do you think that management really laid off these people randomly? Explain.
What is the approximate estimated bootstrap standard error of the median, What is the approximate bias of the median estimated from bootstrapping - What is the bootstrap t confidence interval for the median
What is the probability that the value of the average score for this sample will lie in the internal 970 and 1030? Assume that the population distribution is normal.
question 1nbspa leading manufacturer is planning to make a new production and distribution facility either in mauritius
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