According to a study in a previous year, 55.0% of households nationwide used natural gas for heating during a year.Recently, a survey of 3,200 randomly selected households showed that 56.0% used natural gas. Use a 0.05 significancelevel to test the claim that the 55.0% national rate has changed.Formulate the null and alternative hypotheses. Choose the correct answer below.O A. Ho: p=0.55H₂: p<0.55O C. Ho: p0.55H₂: p=0.55exampleOB. Ho: p=0.55Ha: p > 0.55OD. Ho: p=0.55H₂: p=0.55rces

Givensample proportion(p^)=56.0%=0.56sample size(n)=3200significance level(α)=0.05

Answered: According to a study in a previous…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

See similar textbooks

Similar questions

The recidivism rate for convicted sex offenders is 15%. A warden suspects that this percent is higher if the sex offender is also a drug addict. Of the 320 convicted sex offenders who were also drug addicts, 58 of them became repeat offenders. What can be concluded at the a = 0.05 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Select an answer ✓ Ho: ? H₁: ? Select an answer ✓ c. The test statistic ? - d. The p-value = e. The p-value is ? ✓ a f. Based on this, we should g. Thus, the final conclusion is that ... (please enter a decimal) (Please enter a decimal) (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) Select an answer the null hypothesis. O The data suggest the population proportion is not significantly higher than 15% at a = 0.05, so there is statistically insignificant evidence to conclude that the population proportion of convicted sex offender drug addicts…
One study, based on responses from 1,023 randomly selected teenagers, concluded that 39% of teenagers cite grades as their greatest source of pressure. Use a 0.05 significance level to test the claim that fewer than half of all teenagers in the population feel that grades are their greatest source of pressure. Formulate the null and alternative hypotheses. Choose the correct answer below. OA. Ho: p=0.5 Ha: p>0.5 C. Ho: p=0.5 Ha: p<0.5 Find the test statistic. Z= (Round to two decimal places as needed.) B. Ho: p=0.5 H₂:p 0.5 O D. Ho: p <0.5 H₁: p=0.5
E mw According to a recent poll 57% of Americans would vote for stricter gun controls. If a random sample of 100 people results in 68 individuals who would vote for stricter gun control, test the null hypothesis tha the actual percentage is 57%. As The null and alternative hypotheses are: Ho: p = 0.57 versus Ha: p > 0.57. The lowest level of significance to reject the null hypothesis is: OA: 0.06 OB: 0.04 OC: 0.09 OD: 0.02 OE: 0.03

Recommended textbooks for you

Holt Mcdougal Larson Pre-algebra: Student Edition…

Algebra

ISBN:

9780547587776

Author:

HOLT MCDOUGAL

Publisher:

HOLT MCDOUGAL

Glencoe Algebra 1, Student Edition, 9780079039897…

Algebra

ISBN:

9780079039897

Author:

Carter

Publisher:

McGraw Hill

Holt Mcdougal Larson Pre-algebra: Student Edition…

Algebra

ISBN:

9780547587776

Author:

HOLT MCDOUGAL

Publisher:

HOLT MCDOUGAL

Glencoe Algebra 1, Student Edition, 9780079039897…

Algebra

ISBN:

9780079039897

Author:

Carter

Publisher:

McGraw Hill

SEE MORE TEXTBOOKS