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Suppose N=90,000, n=18,000, s=50
a. Compute the standard error of xbar using the finite population correction factor.
b. Repeat part a assuming n=36,000
c. Repeat part a assuming n= 90,000
Find the equation of the regression line. What is the predicted value when x = 4? Is the correlation significant at 5% significance level (95% confidence level)? Why or why not?
A sample of 100 orders revealed that 82 were delivered within the promised time. At the .10 significance level, can we conclude that less than 90 percent of the orders are delivered in less than 10 minutes?
question below is the sample of baby deliveries in an 8 hour period at a small hospital13 14 6 12 13 8 6 14 4 78 7 5 9
A 95% confidence interval for the average difference between the two reaction times (traditional - LED) was (-171.37, 174.44). Which of the following is the appropriate conclusion?
given the independent random variables x and y with respective probability mass functionspx 0 12px2 12py1 16py2
during the past six months 73.2 of us households purchased sugar. assume that these expenditures are approximately
Suppose the manufacturers claim is right, determine the probability the mean of sample is 47,840 miles or less?
You read a report that says, "On the basis of the simple random sample of 100 high school seniors that took the SATM test this year, a confidence interval for µ is found to be 512.00 ± 25.76." What was the confidence level used to calculate this..
Calculate and plot t he new supply schedule and indicate the new equilibrium price and quantity on your diagram
A circus clown at the top of a 60-foot platform is playing catch with another clown on the ground. The clown on the platform drops a ball at the same time as the one on the ground tosses a ball upward at 80 ft/sec.
Formulate the hypotheses to test to see if the mean of the population is at least 12 ounces.
If zero can be the first digit and the numbers can be repeated, what is the probability Mr. Jones and Mrs. Smith select the same PIN? (Round your answer to 3 decimal places.)
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