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Suppose that the average country song length in America is 4.75 minutes with a standard deviation of 1.10 minutes. It is known that song length is not normally distributed. Suppose a sample of 25 songs is taken from the population. What is the approximate probability that the average song length will last more than 5.25 minutes? Round to the nearest thousandth.
A. 0.012
B. 0.488
C. 0.175
D. 0.325
using t test for significance of slope to determine whether the independent variable is a significant predictornbsp of
What control chart(s) would you use for this data and what are the final control limits?
mamma temte bakes 6 pies a day that costs 2 each to produce. on 28 of the days she sells only 2 pies. on 25 of the days
After a second two-week period, the LDL cholesterol level of each person was recorded again. The data are shown in Table E2.18. Calculate the LDL difference (cornflake-oat bran) for each of the 14 men, then the mean x, variance s2, and standard de..
1. use the normal distribution of sat critical reading scores for which the mean is 513 and the standard deviation is
Examples of the binomial and poisson distributions are all around us. Identify a real-life example or application of either the binomial or poisson distribution. Specify how the conditions for that distribution are met.
What is the probability that the team wins tonight and that there will be a large crowd at tomorrow's game?
seven popular brands of tea are to be used in a blind taste study for consumer recognition. if four distinct brands are
Find the midrange for the following group of data items: what is the midrange rounded to the nearest tenth?
if we were randomly drawing a sample of one organizaiton from a population of 15 where five are high performers and
The value of the standardized test statistic
use a z-test to test the claim about the population mean u at the given level of significance of using the given sample
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