1.Natural Gas Heat The Energy Information Administration reported that 51.7% of homes in the United States were heated by natural gas. A random sample of 208 homes found that 122 were heated by natural gas. Does the evidence support the claim, or has the percentage changed? Use =0.05 and the P-value method.

Part 2 of 6

Compute the test value. Round the sample proportion to three decimal places and z score value to two decimal places.

z = ?

2.Exercise to Reduce Stress A survey by Men's Health magazine stated that 14% of men said they used exercise to reduce stress. A random sample of 114 men was selected, and 12 said that they used exercise to relieve stress. Use the P-value method to test the claim at =0.05.

Part 2 of 6

Compute the test value. Always round z score values to two decimal places.

z = ?

4.Television Set Ownership According to Nielsen Media Research, of all the U.S. households that owned at least one television set, 83% had two or more sets. A local cable company canvassing the town to promote a new cable service found that of the 310 households visited, 242 had two or more television sets. At =0.02, is there sufficient evidence to conclude that the proportion is less than the one in the report? Use a TI-83 Plus/TI-84 Plus calculator.

Part 2 of 4

(b) Find the P-value. Round your answer to at least four decimal places.

P-value= ?

5.Natural Gas Heat The Energy Information Administration reported that 51.7% of homes in the United States were heated by natural gas. A random sample of 185 homes found that 110 were heated by natural gas. Does the evidence support the claim, or has the percentage changed? Use =0.02 and the P-value method. Use a TI-83 Plus/TI-84 Plus calculator.

Part 2 of 4

(b) Find the P-value. Round your answer to at least four decimal places.

P-value= ?

6.Exercise to Reduce Stress A survey by Men's Health magazine stated that 14% of men said they used exercise to reduce stress. A random sample of 125 men was selected, and 8 said that they used exercise to relieve stress. Use the P-value method to test the claim at =0.01. Use a TI-83 Plus/TI-84 Plus calculator.

Part 2 of 4

(b) Find the P-value. Round your answer to at least four decimal places.

P-value=

8.Life on Other Planets Forty-six percent of people believe that there is life on other planets in the universe. A scientist does not agree with this finding. He surveyed 125 randomly selected individuals and found 75 believed that there is life on other planets. At =0.05, is there sufficient evidence to conclude that the percentage differs from 46%? Use the critical value method with tables.

Part 2 of 5

(b)Find the critical value(s). Round the answer to two decimal places. If there is more than one critical value, separate them with commas.

Critical value(s):?

9.Life on Other Planets Forty-four percent of people believe that there is life on other planets in the universe. A scientist does not agree with this finding. He surveyed 125 randomly selected individuals and found 50 believed that there is life on other planets. At =0.10, is there sufficient evidence to conclude that the percentage differs from 44%? Use the P-value method with tables.

Part 2 of 5

Compute the test value. Always round z score values to two decimal places.

z = ?

10.Takeout Food A magazine article reported that 12% of adults buy takeout food every day. A fast-food restaurant owner surveyed 200 customers and found that 32 said that they purchased takeout food every day. At =0.01, is there evidence to believe the article's claim? Use the P-value method with tables.

Part 2 of 5

Compute the test value. Always round z score values to two decimal places.

z = ?