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Assume that a procedure yields a binomial distrubition with n trials and the probability of success for one trial is p. Use the given values of n and p to find the mean and standard deviation. Also use the range rule of thumb to find the minimum usual value mean -2 sSD and the maximum usual value mean +2 SD.
n=1488 p =1/2
mean=
SD=
For some positive value of Z, the probability that a standard normal variable is between 0 and Z is 0.3770. Find value of Z? For some value of Z, the probability that a standard normal variable is below Z is 0.2090. Find value of Z?
a researcher wishes to compare how students at two different schools perform on a math test. he randomly selects 40
you are picking a bouquet of 20 flowers for your mother at random from a garden with 25 coneflowers 35 daisies and 42
A survey was conducted to measure height off men. In survey, respondents were grouped by age. In the 20-29 age group, the heights were normally distributed, with a mean of 69.2 inches and a standard deviation of 2.0 inches.
If student is chosen at random, determine the probability that he or she is sophomore and owns a credit card.
The mean was 56 and the standard deviation was 20. On the second exam, she scored 82; the mean was 74 and the standard deviation was 5. On which exam did she do better?
Testing indicates that the lifetimes of a shipment of disposable butane lighters are normally distributed with a mean of 1000 lights and a standard deviation of 100. What percentage of these lighters will:
A single-sample acceptance attributes sampling plan is required to have a producer's risk of 0.06 for an acceptable quality level of 0.5% nonconforming, and a consumer's risk of 0.10 for a rejectable quality level of 5% nonconforming. Use Minitab ..
Produce the summary output and give the estimated equation for your chosen model and find a suitable regression model to predict y2 using x2 as an explanatory variable. Comment on the output used and justify your choice of model.
to test the effectiveness of a new drug designed to relieve pain 250 patients were randomly selected and divided into
Find a point estimate of the population mean. Find the 95% confidence interval of the true mean. Assume the population standard deviation was 0.8.
Determine the largest village in terms of the population?
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