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a) What do we understand for measures of central tendency?
b) What are some examples of measures of central tendency?
c) Is the mode a measure of central tendency? What about the standard deviation?
d) Calculate the mean, mode, and median for this dataset:-10, 20, 1, 2, 5, 11, 9, 7, 9, 1, 0, 4, -12
The NAEP test was also given to a sample of 1077 women of ages 21 to 25 years. Their mean quantitative score was 275. Take it as known that the standard deviation of all individual scores is = 60.
Jones Nissan in Sumter, South Carolina, sold 10 Nissans yesterday. What is the probability that exactly 1 vehicles require warranty service?
Given the following information about a hypothesis test of the difference between 2 means based on independent random samples, what is the correct rejection region at a significance level of .05?
Use a 1% level of significance to test the claim that there are more calls during the night than in the day.
Could this information be viewed as representing the ratio scale of measurement? If so, explain your reasoning. If not, why not?
Tire will last 50000 miles before it comes bald or fails. adjustment is made on any tire that doesn't last 50000. purchase four tires. what is the probability all four tires will last at least 50000 miles.
Why crime statistics should be collected, how they are used, and how analysis of those statistics could benefit the community.
Many newspapers carry a certain puzzle in which the individual must unscramble letters to form words. How many ways can the letters of YARNLE be arranged?
In effect, she wanted to determine if there was a relationship between FCAT Science Standardized score and FCAT Reading Standardized score.
The application envelopes at random looking for 10 applicants with GRE scores over 600. How many envelopes do you think the staff will need to open?
By using this data and incorporating seasonal effects, predict quarterly turnover for 2010.
Test the hypothesis that there is no difference in the mean scores of Exam 1 and Exam 2 against the alternative that the average is greater for the second exam.
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