Final answer:
A 95 percent confidence interval is a range of values within which we can be 95 percent confident that the true population parameter lies. In this study, we can use the 95 percent confidence interval to estimate the mean number of chocolate chips in a bag of Chips Ahoy! Chocolate chip cookies. To construct a 90 percent confidence interval for the mean grams of fat per serving of chocolate chip cookies sold in supermarkets, we need to calculate the sample mean and standard deviation and use the formula for the confidence interval.
Step-by-step explanation:
In this question, the subject is Mathematics and the grade level is High School.
In statistics, a 95 percent confidence interval is a range of values within which we can be 95 percent confident that the true population parameter lies. For this study, the 95 percent confidence interval can be used to estimate the mean number of chocolate chips in a bag of Chips Ahoy! Chocolate chip cookies sold in supermarkets.
To construct a 90 percent confidence interval for the population mean grams of fat per serving of chocolate chip cookies sold in supermarkets, we can use the given sample data to calculate the sample mean and standard deviation and then use the formula for the confidence interval.