A random sample of 63 packs of potato chips weighed, on the average, 6.23 grams. The standard deviation is 0.24 grams. Test the hypothesis that u = 6.5 grams against the alternative hypothesis, µ < 6.5 grams, at the 0.05 level of significance. а. Rounding off to the nearest integer, z = b. In conclusion, the potato chips, on average, weighs: O[less than 6.5 grams] O[equal to 6.5 grams]

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