Suppose that the owner of a fast food restaurant recently purchased a new soft drink machine, designed to dispense 16 oz for a small beverage. the actual amount dispensed is normally distributed and should have a mean of 16 oz, but the manager suspects that the machine may be underfilling the cups. he selects a random sample of 7 small soft drinks, as filled by the machine. the volumes dispensed into each cup, in ounces, are listed below. 15.7,15.8,15.6,16.1,16.0,15.7,15.5

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

idk this answer sorry cant on this one.

step-by-step explanation:

ou would have 12 of each