Water Consumption The Old Farmer's Almanac stated that the average consumption of water per person per day was 123 gallons. To test the hypothesis that this figure may no longer be true, a researcher randomly selected 17people and found that they used on average 118.4 gallons per day and s = 5.3. At α = 0.05, is there enough evidence to say that the Old Farmer's Almanac figure might no longer be correct? Use the P-value method. Assume the population is normally distributed. Use a TI-83 Plus/TI-84 Plus calculator. (a) State the hypotheses and identify the claim. (b) Find the P-value. Round the answer to at least four decimal places. (c) Make the decision. (d) Summarize the results.
Water Consumption The Old Farmer's Almanac stated that the average consumption of water per person per day was 123 gallons. To test the hypothesis that this figure may no longer be true, a researcher randomly selected 17people and found that they used on average 118.4 gallons per day and s = 5.3. At α = 0.05, is there enough evidence to say that the Old Farmer's Almanac figure might no longer be correct? Use the P-value method. Assume the population is
(a) State the hypotheses and identify the claim.
(b) Find the P-value. Round the answer to at least four decimal places.
(c) Make the decision.
(d) Summarize the results.
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 1 images
