week2laba.jasperstat

# week2laba.jasperstat - Math 221 Week 2 Lab Submitted by...

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Math 221 Week 2 Lab Submitted by: Part 1. Random Sampling Ordere d Sample Account Name 3 ac 5 ae 6 af 7 ag 8 ah 9 ai 17 aq 21 au 31 be 56 cd 35 bi 38 bl 72 ct 52 bz 60 ch 19 as 61 ci 68 cp 70 cr 71 cs 1. It is important to randomly sample these accounts to insure that all these accounts have equal chance to be checked for accuracy. 2. I used the “RandBetween” function in excel to generate the 20 random samples from the 74 accounts. Part 2. Cereal and Fiber Type I used the chart function in excel to create the bar chart.

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I used the pie chart function in excel to create the pie chart. Part 3. Milk Production 1. Find the sample mean. The sample mean is 2270.55 and I used the average function to in excel to determine the mean. ( =AVERAGE(A2:A51) ) 2. Find the sample standard deviation. The sample standard deviation is 6351.18 and I used the stdev function in excel to determine the standard deviation. ( =STDEV(A2:A51) ) 3. Make a frequency distribution for the data. Distribution is started at right. Milk Production
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## This note was uploaded on 09/07/2010 for the course MATH 221 taught by Professor Bethdodson during the Spring '10 term at DeVry Chicago.

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week2laba.jasperstat - Math 221 Week 2 Lab Submitted by...

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