Mathematics, 17.04.2020 02:49 QTpieNay
A lumber company is making boards that are 2920.0 millimeters tall. If the boards are too long they must be trimmed, and if they are too short they cannot be used. A sample of 12 boards is made, and it is found that they have a mean of 2922.7 millimeters with a variance of 121.00. Is there evidence at the 0.05 level that the boards are either too long or too short? Assume the population distribution is approximately normal. Step 2 of 5 : Find the value of the test statistic. Round your answer to three decimal places.
Answers: 3
Mathematics, 21.06.2019 23:30, byron17
Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is
Answers: 3
Mathematics, 22.06.2019 00:00, heyyyyy117
Define the type of sequence below. 7, 14, 28, 56, 112, a. neither arithmetic nor geometric b. arithmetic c. both arithmetic and geometric d. geometric
Answers: 1
A lumber company is making boards that are 2920.0 millimeters tall. If the boards are too long they...