The Consumer Fraud Council claims that a well known brand does not put the required weight of peanut better in its 10-ounce jar. For evidence, a sample of 400 jars is selected randomly, weighed, and found to average 9.9. ounces. The p-value, .07, is associated with the hypothesis that the population mean (u) is usually 10 ounces and the production process is not generating “light” bottles.
- Has the council proved the point?
- Evaluate the evidence. Is the evidence statistically significant at the .10 level? At the .05 level?
- Should the Consumer Fraud Council recommend a boycott?Why or why not?
Image: (AP Photo/Al Behrman)
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