This assignment introduces you to the statistical concepts of mean, standard deviation, Grubbs test, F test, and t test. You will compare the accuracy of different methods to measure a room length. You will compare your results with someone else who is measuring a different room length.You will evaluate the methods used for precision and accuracy.

1.(a) Write descriptive procedures for how you will be measuring the room length.(b) Repeat each procedure 5 times, and complete the data table. (c) Also include a picture of the room. (d) Use excel to calculate the average and standard deviation for each procedure.

Procedure A:

Procedure B:

Photo

Procedure A Procedure B

Trial 1 12'7 168.14

Trial 2 12'3 168.20

Trial 3 12'4 168.25

Trial 4 12'8 168.30

Trial 5 12'7 168.20

Average

Standard Deviation

1. Use the Grubbs test to determine if any measures should be removed from the data.If data is removed, please explain below
2. Use the F-test to determine if the two procedures have standard deviations that are significantly different from each other.Explain below if the standard deviations are different, and why that may be the case.
3. Based on the results of the F-test, select the correct equation for the t-test, and determine if the two measures provide the same result to the 95% confidence interval.
4. Which procedure do you think is the best?Consider the precision, accuracy, and ease of each method used.