MOB 401

subject Type Homework Help
subject Pages 3
subject Words 399
subject Authors Douglas Lind, Samuel Wathen, William Marchal

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page-pf1
In a two-way ANOVA, when is an interaction source of variance included?
A company wants to estimate next year's total revenue. Why is an interval estimate
preferred to a point estimate?
A study by a bank compared the average savings of customers who were depositors for
three years or less with those who had been depositors for more than three years. The
results of a sample are:
To test that the two groups of customers have equal savings rates, what is the p-value
for a two-tailed test?
page-pf2
If we are testing for the difference between two population proportions, it is assumed
that the sample observations from one population are _____________ of the sample
observations from the other population.
A z-value measures the distance between an outcome, x, and its population mean in
terms of the number of _____________________.
In flipping a fair coin, what is the probability of heads and tails on two tosses?

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