Mathematics, 03.06.2020 13:18, NBASTARK4523
A study is done by a community group in two neighboring colleges to determine which one graduate's students with more math classes. College A samples 11 graduates. Their average is four math classes with a standard deviation of 1.5 math classes. College B samples 9 graduates. Their average is 3.5 math classes with a standard deviation of one math class. The community group believes that a student who graduates from college A has taken more math classes, on the average. Both populations have a normal distribution. Test at a 1 % significance level. Answer the following questions (15) a. Is this a test of two means or two proportions? Are the populations dependent or independent? b. Are the populations' standard deviations known or not? c. Which distribution is to be used? d. What is random variable? e. Hypothesis? f. Test is two tailed or one tail? g. Test value h. Use P-value method) to reach to the conclusion?
Answers: 3
Mathematics, 21.06.2019 17:30, wwesuplexcity28
33% of college students say they use credit cards because of the rewards program. you randomly select 10 college students and ask each to name the reason he or she uses credit cards. find the probability that the number of college students who say they use credit cards because of the rewards program is (a) exactly two, (b) more than two, and (c) between two and five inclusive. if convenient, use technology to find the probabilities.
Answers: 1
Mathematics, 21.06.2019 21:00, datgamer13
Mr. zimmerman invested $25,000 in an account that draws 1.4 interest, compouneded annually. what is the total value of the account after 15 years
Answers: 1
Mathematics, 21.06.2019 23:10, alemorachis49
You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?
Answers: 2
A study is done by a community group in two neighboring colleges to determine which one graduate's s...
Mathematics, 18.02.2021 22:00
History, 18.02.2021 22:00
Mathematics, 18.02.2021 22:00
Biology, 18.02.2021 22:00
Biology, 18.02.2021 22:00
English, 18.02.2021 22:00
Mathematics, 18.02.2021 22:00
Mathematics, 18.02.2021 22:00