Question

Please show all work.

The Newport Bottling Company had been producing cans of cola with amounts that are normally distributed and that have a standard deviation of 0.051 oz. A new bottling machine is tested, and a simple random sample of 24 cans results in the amounts (in ounces) shown below:

11.98 11.98
11.99 11.98
11.90 12.02 11.99
11.93

12.02 12.02
12.02 11.98
12.01 12.00
11.99 11.95

11.95
11.96 11.96
12.02 11.99
12.07 12.07 12.05

Use this sample data and a .05 significance level to test the claim
that cans of cola from the new machine have amounts with a standard
deviation that is less than .051 oz.

Answer #1

In a plant that fills 12 ounce cans of soda, the mean fill
amount with the current machinery is 12.2 ounces with a standard
deviation of 0.03 ounces. A new machine is said to be more
accurate, so the company tested this new machine on a run of 10
cans, and obtained the following fill amounts:
12.03 12.10 12.02 11.92 12.10
12.00 12.05 11.97 11.99 11.87
Test the claim that the standard deviation of the new machine is
lower than...

A machine that fills beverage cans is supposed to put 12 ounces
of beverage in each can. The following are the amounts measured in
a simple random sample of eight cans:
11.96
12.10
12.04
12.13
11.98
12.05
11.91
12.03
Use the space or the graph paper below to make a dot plot for
these data.
What is the sample mean for this dataset?
What is the sample standard deviation for this dataset?
How many degrees of freedom...

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