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?
Answers: 1
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 17:30, aliami0306oyaj0n
Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?
Answers: 2
Mathematics, 21.06.2019 20:50, kassandramarie16
Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?
Answers: 3
You know the right answer?
To determine whether they need to hire extra for the holiday season, the managers of a railroad com...
Questions in other subjects:
Chemistry, 02.06.2021 21:10
Biology, 02.06.2021 21:10
Mathematics, 02.06.2021 21:10
Mathematics, 02.06.2021 21:10
Mathematics, 02.06.2021 21:10
