Mathematics, 12.12.2019 05:31 mrus
To determine whether they need to hire extra for the holiday season, the managers of a railroad company want to estimate how long, on average, it takes a crew to unload a freight car at the lafayette station. they will calculate an estimator as the sample mean of a random sample of unloading times. the managers want the sample mean to have a standard error of 1.51.5 minutes. the corporate office has provided a standard deviation of 99 minutes to use for calculation purposes. how large should the random sample be to ensure the sample mean has the desired standard error?
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Mathematics, 21.06.2019 12:30
Convert 16 yards to feet use the conversion rate 3 feet = 1 yard
Answers: 2
Mathematics, 21.06.2019 23:30
Maren is buying carpet for her rectangular living room. the room is 4.8 yards wide and 5.2 yards long. how much carpet does she need to buy? enter your answer as a decimal in the box. yd2
Answers: 1
Mathematics, 21.06.2019 23:30
Answer each of the questions for the following diagram: 1. what type of angles are these? 2. solve for x. what does x equal? 3. what is the measure of the angles?
Answers: 1
Mathematics, 22.06.2019 00:50
To diagonalize an nxn matrix a means to find an invertible matrix p and a diagonal matrix d such that a pdp d p ap or [1 3 dh epap 3 let a=-3 -5 -3 3 3 1 step 1: find the eigenvalues of matrix a "2's" step 2: find the corresponding eigenvectors of a step 3: createp from eigenvectors in step 2 step 4 create d with matching eigenvalues.
Answers: 3
To determine whether they need to hire extra for the holiday season, the managers of a railroad com...
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