![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 07.06.2020 05:00, andybiersack154
A scientist studying water quality measures the lead level in parts per billion (ppb) at each of 49 randomly chosen locations along a water line. Suppose that the lead levels across all the locations on this line are strongly skewed to the right with a mean of 17 ppb and a standard deviation of 14 ppb. Assume that the measurements in the sample are independent. What is the probability that the mean lead level from the sample of 49 measurements T is less than 15 ppb? Choose 1 A) Plæ <15) = 0.02 B) Plū<15) – 0.16 C) Plē <15) 0.30 D) Plö < 15) – 0.44 E) We cannot calculate this probability because the sampling distribution is not normal.
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
Mathematics, 20.06.2019 18:04, connermichaela
For each expression use a property to write an equivalent expression.
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:00, kkruvc
Ascatterplot is produced to compare the size of a school building to the number of students at that school who play an instrument. there are 12 data points, each representing a different school. the points are widely dispersed on the scatterplot without a pattern of grouping. which statement could be true
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:00, ChooseHappy
One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.
Answers: 2
Do you know the correct answer?
A scientist studying water quality measures the lead level in parts per billion (ppb) at each of 49...
Questions in other subjects:
![Konu](/tpl/images/cats/en.png)
English, 27.04.2021 07:20
![Konu](/tpl/images/cats/en.png)
English, 27.04.2021 07:20
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.04.2021 07:20
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/himiya.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.04.2021 07:20
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/health.png)
Health, 27.04.2021 07:20
![Konu](/tpl/images/cats/mat.png)
Mathematics, 27.04.2021 07:20