A pack of whey powder is marked to have 30 grams. It was determined that the average mean weight content is 27.5 grams and a standard deviation of 0.9 grams. The bakery randomly selected 36 packs from the stock room. a. What is the standard error? b. Construct a 95% confidence interval, provide margin of error c. Construct a 95% one-sided confidence bound, provide margin of error d. Assuming that the population is normally distributed, test to see if the mean of the population is at least 30 grams. Use 0.01 level of significance. e. Applying the same hypotheses, use a 0.075 level of significance.

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.