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Hand-calculate the sample size that will be required to detect an increase or decrease of 1.5(sigma) from the mean of one population at alpha = 0.05 and beta = 0.05 for a hypothesis test.
specimens of blood from 10 different animals were analyzed for blood count say y in units of 100 and packed cell volume
Rose records how long it takes him to drive to UCI every day for a month.
question recently students in a marketing research class were interested in the driving behavior of students.
Students that studied for more than one hour received a c+ or above on the final. Use a .05 significance level to test the professor's claim.
You take a random sample and perform a hypothesis test, getting a p-value of 0.2578. What is the appropriate conclusion? Conclude at the 5% level of significance.
It's estimated that 57% of Americans live in households with 1 or 2 people, 32% live in households with 3 or 4 people and 11% live in households with 5 or more.
What is the mean value of a geometric random variable? What is the mean value of N, the number of tosses of a fair coin until the fourth head occurs?
the annual ground coffee expenditures for households are approximately normally distributed with a mean of 42.75 and a
businessweek conducted a survey of graduates from 30 top mba programs businessweek september 22 2003. on the basis of
Identify and briefly discuss two important concepts ( Prediction and Regression/ Correlation or Regression) applicable to analytical methodology.
Construct a 99% confident interval for the standard deviation of the amount of vitamin B6 per pill.
a dean of men wishes to estimate the average cost of the freshman year at a particular college correct to within 260
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