A consumer electronics firm has developed a new type of remote control button that is designed to operate longer before becoming intermittent. The best button on the market lasts an average of 1200 hours. A random sample of 36 new buttons is selected and each is tested in continuous operation until becoming intermittent. The resulting lifetime of each button was recorded and found to have a sample mean of 1275 hours. Determine the value of the p-value for this test.
A consumer electronics firm has developed a new type of remote control button that is designed to operate longer before becoming intermittent. The best button on the market lasts an average of 1200 hours. A random sample of 36 new buttons is selected and each is tested in continuous operation until becoming intermittent. The resulting lifetime of each button was recorded and found to have a sample mean of 1275 hours.
Determine the value of the p-value for this test.
Round to 4 decimal places.
Note: we know the population standard deviation (180 hours, see above).
This allows us to use the standard
Note: Obtain the p-value from the second tab on the normal distribution excel spreadsheet.
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