1 answer

A lumber company is making doors that are 2058.0 millimeters tall. If the doors are too...

Question:

A lumber company is making doors that are 2058.0 millimeters tall. If the doors are too long they must be trimmed, and if the doors are too short they cannot be used. A sample of 11 is made, and it is found that they have a mean of 2043.0 millimeters with a standard deviation of 25.0 A level of significance of 0.05 will be used to determine if the doors are either too long or too short. Assume the population distribution is approximately normal. Find the value of the test statistic. Round your answer to three decimal places.


Answers

Let u denotes the population mean. Hypotheses : To test null hypothesis H. :u=2058 against alternative hypothesis H1 :p #2058

.

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