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The radar traps at each of the locations L1 L2 L3 L4 are operated 40 30 20 and 30 of the time a person who is speeding on his way to Penn State has a probablities of 2 1 5 and 2 respectivley of passing through these locations what is the probablity the speeding person will recieve a speeding ticket.
Using the following data on 15 workers, construct an exact 95% confidence interval for µ.
A pie chart shows the market shares of cola products. The "slice" for Pepsi-Cola has a central angle of 90 degrees. What is its market share?
A retailer wants to estimate with 99% confidence the number of people who buy at his store. A previous study showed that 15% of those interviewed had shopped at his store.
A health care professional wishes to estimate the birth weight of infants. How large a sample must she select if she desires to be 90% confident that the true mean is within 6 ounces of the sample mean?
A soft drink company has recently received customer complaints about its one-liter-sized soft drink products. Customers have been claiming that the one-liter-sized products contain less than one liter of soft drink.
A randomized block design with 4 treatments and 5 blocks produced the following sum of squares values: SST = 1951, SSTR = 349, SSE = 188. The value of SSB must be:
Describe a specific application of statistics that either has a direct effect on you or your life.
With a confidence of 95%, what is the margin of error for the proportion of all carp that would incorporate the gene into their DNA?
From the following information for Alfred Industries compute the overhead spending variance and the volume variance:
Is there evidence to suggest a difference in the mean waiting times at the four body shops?
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level. Give the formula for the test statistic.
Calculate the population mean and population standard deviation.
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