Jeff's Subs is a local chain of sandwich shops in Raccoon City. Like many other such restaurants, Jeff's offers sandwiches of various lengths. One popular sandwich is the Big Footlong, which is
supposed to be one foot (12 inches) long.
chain).
at Store 1, Store 2, and Store 3 (in that order). ANOVA is the chosen technique to examine this question.
After gathering some data, they produced the table below.
to compute the p-value and rejection region value. The functions you need are F.DIST.RT and F.INV.RT (it's up to you to decide which function to use for the p-value and which to use for the
critical value).
ANOVA
a slash (/"), enter one of those words or phrases. For the last blank in the interpretation sentence below, you will need to state specifically_the variable being examined.
Jeffs Subs is a local chain of sandwich shops in Raccoon City. Like many other such restaurants, Jeffs offers sandwiches of various lengths. One popular sandwich is the Big Footlong, which is supposed to be one foot (12 inches) long.
chain).
at Store 1, Store 2, and Store 3 (in that order). ANOVA is the chosen technique to examine this question. After gathering some data, they produced the table below. a. Complete the following ANOVA table assuming the analysis will be performed at the 0.05 level of significance. Use three (3) decimal places for all of your answers. You will need to use Excel to compute the p-value and rejection region value. The functions you need are F.DIST.RT and F.INV.RT (it's up to you to decide which function to use for the p-value and which to use for the critical value).
SUMMARY Groups Store 1 Store 2 Store 3
Count 6 10 11
Sum 104.31 118.2 125.62
Average 11.59 11.82 11.42
Variance 0.17 0.24 0.23
ANOVA Source of Variation Between Groups 0.39 Within Groups
ss 4.6
sp 4.99
MS 29
F
P-value
F crit
Total
6.661
29
b. What if anything, can the company conclude? Indicate your answer by filling in the words or phrases in the statement below. For blanks followed by words or phrases in parentheses separated by a slash (/, enter one of those words or phrases. For the last blank in the interpretation sentence below, you will need to state specifically_the variable being examined.
reject
(Reject/Fail to reject) the null hypothesis. The company cannot
(can/cannot) conclude that at least two of the stores differ in terms of the mean