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The report "Who Moves? Who Stays Put? Where's Home?" (Pew Social and Demographic Trends, December 17, 2008) gave the accompanying data for the 50 U.S. states on the percentage of the population that was born in the state and is still living there. The data values have been arranged in order from largest to smallest.
a. Find the values of the median, the lower quartile, and the upper quartile.
b. The two smallest values in the data set are 28.2 (Alaska) and 35.7 (Wyoming). Are these two states outliers?
c. Construct a boxplot for this data set and comment on the interesting features of the plot.
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An independent random sample of 250 items made by supplier B reveals that 38 are defective. Is one supplier more reliable than the other? Explain.
1. Calculate the mean, median, and standard deviation for ounces in the bottles. 2. Construct a 95% Confidence Interval for the ounces in the bottles.
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(a) Construct an ogive for the reaction times given in Exercise 116. (b) Construct an ogive representing the cumulative percentage distribution.
Draw a model of the relation {(-6,-8), (3,-3), (-6,-7), (9,7)}. Is the relation a function? Why or why not? Evaluate the function at the specified values of the independent variable and simplify.
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