Mathematics, 09.12.2021 02:30 amanditafarinap3bw7g
A credit card company claims that the mean credit card debt for individuals is greater than $5,000. You want to test this claim. You find that a random sample of 35 cardholders has a mean credit card balance of $5,160 and a standard deviation of $625. At α=0.05, can you support the claim? Assume the population is normally distributed. a) Write the claim mathematically and identify H o and H a?(b) Find the critical value(s) and identify the rejection region(s).What is(are) the critical value(s)?(c) Find the standardized test statistic t.(e) Interpret the decision in the context of the original claim.
Answers: 3
Mathematics, 21.06.2019 18:10
Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial
Answers: 1
Mathematics, 21.06.2019 20:00
Elizabeth is using a sample to study american alligators. she plots the lengths of their tails against their total lengths to find the relationship between the two attributes. which point is an outlier in this data set?
Answers: 1
Mathematics, 21.06.2019 23:00
Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?
Answers: 1
A credit card company claims that the mean credit card debt for individuals is greater than $5,000....
Mathematics, 20.11.2021 14:00
Mathematics, 20.11.2021 14:00
Social Studies, 20.11.2021 14:00
Computers and Technology, 20.11.2021 14:00
Mathematics, 20.11.2021 14:00
Business, 20.11.2021 14:00
English, 20.11.2021 14:00