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Using Excel a new low fat fudge bar is advertised as having 120 calories. the manufacturing company conducts regular checks by selecting independent random samples
Using Excel a new low fat fudge bar is advertised as having 120 calories. the manufacturing company conducts regular checks by selecting independent random samples and testing the sample average against the advertised average. Historically the population varies as a normal distribution and the most recent sample consists of the numbers 99, 132, 125, 92, 108, 127, 105, 112, 102, 112, 129, 112, 111, 102, 122. Is the population value significantly different from 120 calories (significance level 5%)?
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