Mathematics, 12.03.2021 15:00 zanaplen27
Country Financial, a financial services company, uses surveys of adults age 18 and older to determine if personal financial fitness is changing over time (USA Today, April 4, 2012). In February 2012, a sample of 1000 adults showed 410 indicating that their financial security was more than fair. In February 2010, a sample of 900 adults showed 315 indicating that their financial security was more than fair. a) State the hypotheses that can be used to test for a significant difference between the population proportions for the two years. b) What is the sample proportion indicating that their financial security was more than fair in 2012
Answers: 2
Mathematics, 21.06.2019 17:00
Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)
Answers: 1
Mathematics, 22.06.2019 00:00
Parallelogram efgh is a rectangle. he = 6, and fe = 8. find ge: and find fj:
Answers: 1
Country Financial, a financial services company, uses surveys of adults age 18 and older to determin...
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