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What about this hypothesis test?
H0: mean <= 12
Ha: mean > 12
A sample of 25 units yields a sample mean of 14 and a sample standard deviation of 4.32. Do we have statistical significance if our alpha value is .05?
a light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 875 hours .a random
What does the shot noise on the power line look like? - Sketch a possible member function of the shot noise process.
Tony, a single parent, spent $3,600 on after-school care for his six-year-old son. Tony received $1,200 as aid to families with dependent children from the State Department of Social Services (DSS) for child care as part of the welfare assistance ..
an urn contains 4 red and 6 green balls. one ball is drawn at random and its color is observed. the ball is then
a researcher is interested in whether students who attend private elementary schools do any better on s standard test
What is the probability that the debt for a borrower with good credit is more than $18,000 - What is the probability that the sample proportion p' will be between .20 and .40 - What amount should you bid to maximize the probability that you get the p..
It is known from previous studies that the population variances are 8.1 and 7.3 respectively. Using a level of significance of .01, is there evidence that the out of state students may be receiving lower grades? Fully explain your answer.
Suppose that you want to set up a statistical test to challenge the claim of 6.7 seconds. What would you use for the null hypothesis?
Pick from at least two of the 16 research designs described in chapter nine of our textbook. Compare and contrast the outcomes that would be derived.
Five cards are randomly chosen from a standard deck, one at a time with replacement. Let X, Y, Z be the numbers of chosen queens, kings, and other cards.
You read in a book on poker that if you hold a pair (two cards of the same rank) in your hand, the probability of getting four of a kind is 2/245.
listed below are the lengths in minutes of randomly selected cds of country rock and movie soundtracks. construct a 94
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