Mathematics, 05.05.2020 20:14 bvghchg2580
A psychological study found that men who were distance runners lived, on average, five years longer than those who were not distance runners. The study was conducted using a random sample of 50 men who were distance runners and an independent random sample of 30 men who were not distance runners. The men who were distance runners lived to be 84.2 years old, on average, with a standard deviation of 10.2 years. The men who were not distance runners lived to be 79.2 years old, on average, with a standard deviation of 6.8 years. Which of the following is the test statistic for the appropriate test to determine if men who are distance runners live significantly longer, on average, than men who are not distance runners?
Answers: 2
Mathematics, 21.06.2019 13:10
Plz which expression is equivalent to the expression below?
Answers: 1
Mathematics, 21.06.2019 23:30
What is the volume of a rectangular crate that has dimensions 9 inches by 9 inches by 1 feet? 1,458 in.3 121.5 in.3 1,012.5 in.3 36 in.3
Answers: 1
Mathematics, 22.06.2019 04:20
1. suppose that scores on a knowledge test are normally distributed with a mean of 71 and a standard deviation of 6. a. label the curve: show the mean and the value at each standard deviation: b. if angelica scored a 76 on the test, what is her z-score? (draw her score on the curve above and label) c. what percent of students did angelica score higher than? how can you tell? d. if 185 students took the test, how many students scored higher than angelica?
Answers: 3
Mathematics, 22.06.2019 06:00
Which of the following is the graph of f(x) = x2? click on the graph until the correct graph appears.
Answers: 1
A psychological study found that men who were distance runners lived, on average, five years longer...
SAT, 14.01.2021 07:00
Mathematics, 14.01.2021 07:00
Chemistry, 14.01.2021 07:00
Mathematics, 14.01.2021 07:00
Mathematics, 14.01.2021 07:00
Social Studies, 14.01.2021 07:00
Chemistry, 14.01.2021 07:00
Biology, 14.01.2021 07:00