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A sample of eight college students revealed they owned the following number of CDs. 52, 76, 64, 79, 80, 74, 66, 69
a. What is the mean number of CDs owned?
b. What is the median number of CDs owned?
c. What is the 40th percentile?
d. What is the range of the number of CDs owned?
e. What is the standard deviation of the number of CDs owned?
a sports league is making up their season schedule. the league has 12 teams with eight teams from la and the rest from
use a .05 significance level to test the claimignificance level to test the claim that paired sample data below come
Create a scatter diagram and consider the correlation for the given data. Create a scatter diagram and sketch the line you think best fits the data.
In the listed information is the findings statistically significant? Why or Why not? Describe the process used to make that determination and provide the level of significance.
the international bottled water association says that americans on the average drink 4.6 8-oz. servings of water a day.
Conduct a hypothesis test to test that the population mean for population A is no greater than the population mean for B. Use the 0.08 significance level.
the lifetime of certain light bulbs has a mean of 2050 hours and a standard deviation of 405 hours. if you randomly
1. you have obtained a sub-sample of 1744 individuals from the current population survey cps and are interested in the
1. three coins are tossed. let x be the number of heads obtained. the probability distribution for x if given x 0 1 2
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..
Suppose that 1% of all people have a particular disease. A test for the disease is 99% accurate. This means that a person who test positive for the disease has a 99% chance of actually having the disease
a 90 confidence interval estimate for a population mean was computed to be 49.3 67.9. determine the mean of the sample
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