Each dy, Monday through Saturday, a baker bakes three large chocolate cakes, and those not sold on the same day are givien away to a food bank. Use the data shown in the following table to test at the 0.05 level of significance whether they may be looked upon as values of a binomial random variable: Number of Number of cakes sold days 0 1 1 16 2 55 3 228
Table of observed frequencies
|
x
|
f
|
xf
|
|
0
|
1
|
0
|
|
1
|
16
|
16
|
|
2
|
55
|
110
|
|
3
|
128
|
384
|
|
Total
|
200
|
510
|