Calculate variance and standard deviation for this data set

Assignment Help Microeconomics

Reference no: EM131008639

Research by the Food and Drug Administration (FDA) shows that acrylamide (a possible cancer-causing substance) forms in high-carbohydrate foods cooked at high temperatures and that acrylamide levels can vary widely even within the same brand of food (Associated Press, December 6, 2002). FDA scientists analyzed McDonald's French fries purchased at seven different locations and found the following acrylamide levels:

497 193 328 155 326 245 270

a. Compute the mean acrylamide level and the seven deviations from the mean.

b. Verify that, except for the effect of rounding, the sum of the deviations from mean is equal to 0 for this data set. (If you rounded the sample mean or the deviations, your sum may not be exactly zero, but it should be close to zero if you have computed the deviations correctly.)

c. Calculate the variance and standard deviation for this data set.

Reference no: EM131008639

Questions Cloud

Philanthropic organization : 1. Free gift. A philanthropic organization sends out "free gifts" to people on their mailing list in the hope that the re- ceiver will respond by sending back a donation. Typical gifts are mailing labels, greeting cards, or post cards.

Company about using the collection agency : Given this, what recommendation(s) would you make to the credit card company about using the collection agency?

Write few sentences describing the important characteristics : Use these data to construct a boxplot that shows outliers. Write a few sentences describing the important characteristics of the boxplot.

Company adopt the new tread pattern : Should the company adopt the new tread pattern? Test an appropriate hypothesis and state your conclusion. Explain how you dealt with the outlier and why you made the recommenda- tion you did.

Calculate variance and standard deviation for this data set : Verify that, except for the effect of rounding, the sum of the deviations from mean is equal to 0 for this data set. (If you rounded the sample mean or the deviations, your sum may not be exactly zero, but it should be close to zero if you have co..

Problem regarding the radio ads : A company is willing to renew its advertising contract with a local radio station only if the station can prove that more than 20% of the residents of the city have heard the ad and recognize the company's product. The radio station conducts a ran..

How fast is the balloon rising at the given moment : At a certain moment, the angle between the observer's line of sight and the horizontal is π/5, and it is changing at a rate of 0.5 rad/h. How fast is the balloon rising at this moment?

What additional information would have been provided : Below is another quote from the paper. In this quote, the author reports the mean number of minutes of cell phone use per week for those who participated in the survey. What additional information would have been provided about cell phone use beha..

Find the rate of increase in revenue : Find the rate of increase in revenue when production is 1000 switches per day. Find the rate of increase in profit when production is 1000 switches per day. dollars/day.

User Account

All Pages