Question

In: Statistics and Probability

Two machines are used for filling glass bottles with a soft-drink beverage. The filling processes have...

Two machines are used for filling glass bottles with a soft-drink beverage. The filling processes have known standard deviations of 0.010 liter and 0.015 liter, respectively. A random sample of n1 = 25 bottles from machine 1 and n2 = 20 bottles from machine 2 results in average net contents of = 2.04 liters and = 2.07 liters.

Test the hypothesis that both machines fill to the same net contents. What are your conclusions?

PLEASE USE MINITAB

Solutions

Expert Solution

Here in the MINITAB

in menu bar select STAT

-- Basic Statistics

-- 2- sample t

in that select summarized data

then enter the data as n1 = 25, n2 = 20

  1 = 2.04,   2 =2.07

s1 = 0.01, s2=0.015

then select options in that make sure that confidence level is 95.0

Hypothesized difference is 0.0

alternative hypothesis should be  

and select assume equal variances

the select ok and ok

we will get following output

orchestra answered 2 years ago
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