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A random sample obtained from a population has a mean of µ=100 and a standard deviation of σ = 20. 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 samples.
Determine the probability that person's monthly gasoline (gallon) purchases will be less than 67 gallons.
Pproportion who are sent to prison after pleading innocent and being found guilty? No, as the test value -1.96 is inside interval (-2.58, 2.58), No, as the test value -4.94 is outside interval (-1.96, 1.96).
Which test do we use to see if the difference in our sample is statistically significant? Why? Should it be one or two-tailed?
If the observed value is 4, the expected value is 5, and the standard error is 4, then the test value used for the z test is equal to
The probabilities of low, medium and high compliance are 0.3, 0.4, and 0.3, respectively
Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.
Discussion should include a critical reflection on the way in which you completed the market challenge element of the module.
A new-car dealer is leasing various brand-new models for the monthly rates(in dollars) listed below. Estimate the true population variance and standard deviation in leasing rate with 90% confidence.
MATH1550H: Assignment:Questions: (Genetics) What is the probability that at most two of the offspring are aa?
At the .01 significance level, can we conclude that there is more variation?
My question bout How do I use the TINV function within excel to back out the t-statistic for the test? Why did you use the TDIST function? I know ho to use the TINV function, but what does it mean to back out the t-statistic for the test?
Determine the probability that person selected has blood type O? Given that person selected is a male, determine the probability that their blood type is AB?
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