Find out the probability
Same Birthdays find out the probability that no two people have the same birthday if the number of randomly selected people is
a. 3
b. 5
c. 25
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At the .05 level of significance in the right-tailed test, has the percentage of the single-earner or individual mortgages risen? Include a sketch of your decision rule as well as show all work.
The thickness of glass sheets produced by a certain process is usually distributed with a mean of 3 mm and a standard deviation of 0.12 mm.
After 10 minutes temperature of water has reduced from 100 degrees C to 75 degrees C. Determine temperature after nine minutes.
When doing a two-sample hypothesis test, under what situations would you employ independent samples (pooled or non-pooled t-test) as opposed to dependent samples (paired t-test)? Determine the conditions for using each method?
Gender of children. If a couple plans to have eight children, find out the probability that they are all odd the same gender.
In every multiple-choice questions, you should choose correct answer from the list of five. Determine number of answer sheets possible?
Assume that the times people spend being served at the post office window are about normal with mean 1.5 minutes and variance .16 minutes. Determine the probability that
What do you anticipate to see if you take cross-section of the bivariate normal density surface by planes perpendicular to x-axis? Are the resulting curves probability density functions?
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