Mrs. Gallas wanted to estimate the average weight of an Oreo cookie to determine if the average weight was less than advertised. She selected a random sample of 30 cookies and found the weight of each cookie (in grams). The mean weight was = 11.1921 grams with a standard deviation of sx = 0.0817 grams. Make a 95% confidence interval to estimate the true mean weight of an Oreo.   1. What is the formula for calculating the standard deviation of the sampling distribution of x? 2.What condition must be met to use this formula? Has it been met?

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A: From the provided information, Sample size (n) = 11 Sample mean (x̅) = 2.7 Standard deviation (s) =…

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A: Given,population mean(μ)=75population standard deviation(σ)=4Raw score(X)=73

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A:

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A: Given that Mean=M=152, Standard Deviation=Sd=16, Jenny score=X=143

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A:

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A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.