for 13.5 ounces is -2.50; the z-score for 15.5 ounces is 2.50. Using the answers from Step 1, what percent of the boxes will weigh between 13.5 ounces and 15.5 ounces? (Round your answer to one decimal place.)

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.