No beacuse 19 1/2 is not bigger than 20
55/12+11/4++89/12 = 155/28
XD
You need to create a fair reset and in the areas you need to examine
If that is what you mean
Answer:
Step-by-step explanation:
Let X be amount dispensed
X is N(16, sigma)

(One tailed test)
Count, N: 7
Sum, Σx: 110.4
Mean, μ: 15.771428571429
Variance, s^2 0.039183673469388
s=0.1979
Test statistic = Mean diff/std error where std error = s/sqrt n
=-2.828
p value = 0.01501
p <0.05
Hence we conclude that the manager suspects that the machine may be under filling the cups is confirmed and evident statistically
Answer:
C. 33
Step-by-step explanation:
Sample mean is right in the centre of the interval
Sample mean:
(25+41)/2
66/2
33