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Find the test statistic F to test the claim that the populations have the same mean.
Brand 1 Brand 2 Brand 3
n=8 n=8 n=8
x=3.0 x=2.6 x=2.6
s=0.50 s=0.60 s=0.55
Safe T cigarettes claim that their product has "low tar." Government standards are that this claim is invalid if there are more than 13.5mg tar per cigarette.
Use the normal approximation to find the probability that the student scores 70% or lower on a 100-question test.
in a random sample of 60 refrigerators the mean repair cost was 150.00 and the standard deviation was 15.50. construct
Let A and B be two events such that P (A) = 0.6, P (B) = 0.4, P (AB) = 0.2. (a) What is the probability that neither of the two events occurs.
A recent survey reported in Business Week dealt with the salaries of CEOs at large corporations and whether company shareholders made money or lost money.
Assume P1 and P2 move simultaneously. Represent this game in normal form.
A population with u=73 and o=9 is transformed into a new population with u=10 and o=2. What is the new value for each of the following scores in the population?
conduct an historical study of a random variable of your choice collect a sample of observations and provide detailed
According to a recently conducted survey, 90% of all drivers in Trinidad and Tobago claim to consistently driver over the legal speed limit.
Write up your results by using scientifically recognized form.
The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample men and population mean for a sample of n = 100 is 2 points. Explain the difference in the standard error for the two sampl..
h1 the mean of sample a is significantly different than the mean of sample b. sample a 59 30 74 62 87 73 sample b 53 67
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