STAT200 UMUC Economic Dynamism of Middle Income Countries Questions Please read each question carefully before answering and save in PDF before submitting.

STAT200 UMUC Economic Dynamism of Middle Income Countries Questions Please read each question carefully before answering and save in PDF before submitting. If you can’t do PDF, send in word and I’ll convert, Thanks in advance! If printed, fill in the blank ?
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STAT 200 Week 5 Homework Problems
7.1.2 According to the February 2008 Federal Trade Commission report on consumer fraud and
identity theft, 23% of all complaints in 2007 were for identity theft. In that year, Alaska had 321
complaints of identity theft out of 1,432 consumer complaints (“Consumer fraud and,” 2008). Does this
data provide enough evidence to show that Alaska had a lower proportion of identity theft than 23%?
State the random variable, population parameter, and hypotheses.
7.2.4 Re-use #7.1.2’s info: Does this data provide enough evidence to show that Alaska had a lower
proportion of identity theft than 23%? Test at the 5% level.
7.3.6 “Economic dynamism” in table #7.3.8 (“SOCR data 2008,” 2013), is an index of productive
growth in US$ dollars for countries designated by the World Bank as middle-income. Countries
considered high-income have a mean economic dynamism of 60.29. Do the data show that the mean
economic dynamism of middle-income countries is less than the mean for high-income countries? Test at
the 5% level.
Table #7.3.8: Economic Dynamism of Middle Income Countries
25.8057 37.4511
51.915 43.6952 47.8506 43.7178 58.0767
41.1648 38.0793 37.7251 39.6553 42.0265 48.6159 43.8555
49.1361 61.9281 41.9543 44.9346 46.0521 48.3652 43.6252
50.9866 59.1724 39.6282 33.6074 21.6643
8.3.6 Re-use #7.3.6’s info: Compute a 95% confidence interval for the mean economic dynamism of
middle-income countries.
8.1.4 Suppose you compute a confidence interval with a sample size of 100. What will happen to the
confidence interval if the sample size decreases to 80?

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