If the level of confidence remains at 95 for the 720

Assignment Help Basic Statistics

Reference no: EM13644870

A company that manufacturers coffee for use in commercial machines monitors the caffeine content in its coffee. The company selects 50 samples of coffee every hour from its production line and determines the caffeine content. From historical data, the caffeine content (in milligrams, mg) is known to have a normal distribution with s = 7.1 mg. During a 1-hour time period, the 50 samples yielded a mean caffeine content of y(bar) =110 mg. Because the company is sampling the coffee production process every hour, there are 720 confidence intervals for the mean caffeine content m constructed every month.

If the level of confidence remains at 95% for the 720 confidence intervals in a given month, how many of the confidence intervals would you expect to fail to contain the value of m and hence provide an incorrect estimation of the mean caffeine content?
If the number of samples is increased from 50 to 100 each hour, how many of the 95% confidence intervals would you expect to fail to contain the value of m in a given month?

Reference no: EM13644870

Questions Cloud

Then in another 4s it moves from sb to sc 25 m determine : a particle travels along a straight line such that in 2 s it moved from an initial position sa 0.5 m to a position sb

In any given situation if the level of confidence and the : in any given situation if the level of confidence and the standard deviation are kept constant how much would you need

The plate on the back of a certain computer scanner says : the plate on the back of a certain computer scanner says that the unit draws 0.340 a of current from a 120 v 60.0 hz

What tecnhique is used to separate the active ingredient : what tecnhique is used to separate the active ingredient from each of these compounds citric acid sodium benzoate

If the level of confidence remains at 95 for the 720 : a company that manufacturers coffee for use in commercial machines monitors the caffeine content in its coffee. the

120 ohm resistor is in series with a 0140 h inductor and a : a 120 ohm resistor is in series with a 0.140 h inductor and a 0.500 micro f capacitor.a compute the impedance of the

What would happen to the width of the confidence intervals : a company that manufacturers coffee for use in commercial machines monitors the caffeine content in its coffee. the

A mechanical assembly consists of a rod with a bearing on : a mechanical assembly consists of a rod with a bearing on each end. the 3 parts are manufactured independently. the

A steam pipe of 120 mm outside diameter and is covered with : a steam pipe of 120 mm outside diameter and is covered with a 20 mm thick layer of calcium silicate insulation k

User Account

All Pages