Mathematics, 26.11.2019 04:31 manco6
Bank of america's consumer spending survey collected data on annualcredit card charges in seven different categories of expenditures: transportation, groceries, dining out, household expenses, homefurnishings, apparel, and entertainment (u. s. airwaysattache, december 2003). using data from a sample of 42 creditcard accounts, assume that each account was used to identify theannual credit card charges for groceries (population 1) and theannual credit card charges for dining out (population 2). using thedifference data, the sample mean difference was = $850, and the sample standard deviationwas sd = $1,123.a. formulate the null abd alternative hypothesis to test for no difference between the population mean credit card charges for groceries and the population mean credit card charges for dining out. b.use a .05 level of significance. can you can conclude that the population mean differ? what is the p-value? c. which category, groceries or dining out, has a higher population mean annual credit card charge? what is the point estimate of the difference between the population means? what is the 95% confidence interval estimate of the difference between the population means?
Answers: 2
Mathematics, 21.06.2019 15:30
Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.
Answers: 1
Mathematics, 21.06.2019 20:20
Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.
Answers: 2
Mathematics, 21.06.2019 23:30
Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose
Answers: 2
Mathematics, 22.06.2019 01:30
Find the circumference of a pizza with a diameter of 10 inches round to the nearest tenth
Answers: 1
Bank of america's consumer spending survey collected data on annualcredit card charges in seven diff...
History, 01.12.2020 23:30
Mathematics, 01.12.2020 23:30
History, 01.12.2020 23:30
Mathematics, 01.12.2020 23:30
Business, 01.12.2020 23:30
English, 01.12.2020 23:30
Mathematics, 01.12.2020 23:30
Biology, 01.12.2020 23:30
Social Studies, 01.12.2020 23:30
Mathematics, 01.12.2020 23:30
History, 01.12.2020 23:30
Computers and Technology, 01.12.2020 23:30