Choo Choo Paper Company Makes Various Types of Paper Products

question 99

Essay

Choo Choo Paper Company makes various types of paper products. One of their products is a 30 mils thick paper. In order to ensure that the thickness of the paper meets the 30 mils specification, random cuts of paper are selected and the thickness of each cut is measured. A sample of 256 cuts had a mean thickness of 30.3 mils with a standard deviation of 4 mils.
a.Compute the standard error of the mean.
b.
b.At 95% confidence using the critical value approach, test to see if the mean thickness is significantly more than 30 mils.
c.Show that the p-value approach results in the same conclusion as that of part

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Definitions:

Pointing Device

A hardware input device used to interface with a computer screen or monitor, such as a mouse or trackpad.

Touch Pad

A touch-sensitive interface used as a pointing device on computers and other electronic devices.

Notebook Computer

A portable computer with a screen and keyboard, designed for mobile use.

AC Adapter

An external device that converts alternating current (AC) from a wall outlet to a specific voltage and current to power or charge an electronic device.