Mathematics, 06.05.2020 04:03 deondra0803

According to the Centers for Disease Control and Prevention, the proportion of U. S. adults age 25 or older who smoke is .22. A researcher suspects that the rate is lower among U. S. adults 25 or older who have a bachelor's degree or higher education level. What is the null hypothesis in this case?

a. The proportion of smokers among U. S. adults 25 or older who have a bachelor's degree or higher is less than 0.22.
b. The proportion of smokers among U. S. adults 25 or older who have a bachelor's degree or higher is 0.22.
c. The proportion of smokers among U. S. adults 25 or older who have a bachelor's degree or higher is not 0.22.
d. There is no relationship between education level and smoking habits.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:30, wolfygamer14

The angles below are supplementary. what is the value of x? a pair of supplementary angles is shown. one angle measures 7x + 33, and the other angle measures 70. 5.3 8.14 11 14.7

Answers: 1

continue

Mathematics, 21.06.2019 21:40, Casey7019

Asystem of linear equations contains two equations with the same slope. select all of the correct statements. i a. the system may have two solutions. - b. the system may have infinitely many solutions. c. the system may have one solution. o d. the system may have no solution. submit

Answers: 3

continue

Mathematics, 21.06.2019 22:00, sebcbal

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

Answers: 1

continue

Mathematics, 21.06.2019 22:30, madisonwr

Nicole is making carrot bread she needs 5 cups of carrots for 2 cups of sugar. what is the ratio of cups of sugar to cups of carrots that nicole will need? write the ration in three different ways

Answers: 1

continue

You know the right answer?

According to the Centers for Disease Control and Prevention, the proportion of U. S. adults age 25 o...