Replace My Grade 5

What is definition of null hypothesis?

• The independent variable has no effect on the dependent variable for the population
• The independent variable does have an effect on the dependent variable
• The dependent variable has no effect on the independent variable
• The dependent variable does have effec on the independent variable

Tags

CCSS.HSS.IC.B.5

Choose the pair that provide a legitimate hypothesis.

• H_o: p≠.4, H_a: p>.4

• H_o:p̂=.16, H_a: p̂>.16

• H_o:μ=24, H_a:μ>24

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

In a random sample of 1000 adult Americans, only 430 could name at least one justice who is currently serving on the US Supreme Court. A claim is that fewer than half of adult Americans can name at least one justice who is currently serving on the US Supreme Court. State the null hypothesis.

• H_o: p <.5, where p is the true proportion of Americans who can name one justice currently serving.

• H_o:p >.5 where p is the true proportion of Americans who can name one justice currently serving.

• H_o:p =.5 where p is the true proportion of Americans who can name one justice currently serving.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

The Associated Press found that 730 of 1000 randomly selected adults preferred to watch movies at home rather than at a movie theater. Is there convincing evidence that the majority of adult Americans prefer watching movies at home? State the alternative hypothesis.

• H_a: p = .50, where p is the true proportion of adult Americans who prefer watching movies at home.

• H_a: p < .50, where p is the true proportion of adult Americans who prefer watching movies at home.

• H_a: p > .50, where p is the true proportion of adult Americans who prefer watching movies at home.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

CCSS.HSS.IC.B.3

In a survey of 526 US businesses, 400 indicated that they monitor employee's web site visits. Is there sufficient evidence that more than 70% of US businesses monitor employees' web site visits? State the alternative hypothesis.

• H_a: p = .70, where p is the true proportion of US businesses that indicated they monitor employee web sites.

• H_a: p > .70, where p is the true proportion of US businesses that indicated they monitor employee web sites.

• H_a: p < .70, where p is the true proportion of US businesses that indicated they monitor employee web sites.

Tags

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4