MTH 243 QUIZ 1 Student Name When applicable, please show your work for full cred

Question

MTH 243 QUIZ 1 Student Name When applicable, please show your work for full credit. 1. A Dietician obtains the amounts of sugar (in centigrams) from 1 gram of each of 10 different cereals, including Cheerios, Corn Flakes, Fruit Loops, and 7 others. The values are: 3 24 30 47 43 7 47 13 44 39. a. What is the mean? b. What is the median? c. What is the mode? d. What is the midrange? e. What is the Standard deviation? f. What is the variance? g. What is the range? h. Is the mean of those sample values likely to be a good estimate of the mean amount of sugar in each gram of cereal consumed by the population of all Americans who eat cereal? Why or Why not?

Explanation / Answer

to calculate range , sample variance , standaed deviation, mean use excel. the excel path is  

enter the data in excel----->data------>data analysis------>descriptive statistics------>ok---------> input range (select the data from excel ) ------> output range ( click the one blank box from excel ) ------> click on summary statistics--------> ok . the excel give the output

a ) mean = 29.7

b) median = 34.5

c) mode = 47

e) standard deviation = 17.01

f) variance = 289.56

g) range = 44

the excel output is

Column1 Mean 29.7 Standard Error 5.38114 Median 34.5 Mode 47 Standard Deviation 17.01666 Sample Variance 289.5667 Kurtosis -1.44401 Skewness -0.53942 Range 44 Minimum 3 Maximum 47 Sum 297 Count 10

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