According to a report published by the USDA 4 years ago, a typical American consumes an average of 6.66 pounds of potato chips per year. A researcher at the USDA would like to determine if the average amount of potato chips consumed each year by a typical American has changed since the original report was published. The researcher collected data from a random sample of 31 Americans and found that the mean amount of potato chips consumed each year by the sample was 6.37 pounds with a standard deviation of 0.603 pounds. Using α=0.05α=0.05, test the hypothesis that the mean amount of potato chips consumed each year by a typical American is different than 6.66 pounds. Use the p-value method. Determine the test statistic for the hypothesis test. Round the solution to four decimal places.
According to a report published by the USDA 4 years ago, a typical American consumes an average of 6.66 pounds of potato chips per year.
A researcher at the USDA would like to determine if the average amount of potato chips consumed each year by a typical American has changed since the original report was published. The researcher collected data from a random sample of 31 Americans and found that the mean amount of potato chips consumed each year by the sample was 6.37 pounds with a standard deviation of 0.603 pounds.
Using α=0.05α=0.05, test the hypothesis that the mean amount of potato chips consumed each year by a typical American is different than 6.66 pounds. Use the p-value method.
Determine the test statistic for the hypothesis test. Round the solution to four decimal places.
Determine the p-value (
- p-value < 0.001
- 0.001 < p-value < 0.01
- 0.01 < p-value < 0.02
- 0.02 < p-value < 0.05
- 0.05 < p-value < 0.10
- 0.10 < p-value < 0.20
- p-value > 0.20
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