subject
Mathematics, 27.12.2019 07:31 thebrain1345

Lightning strikes the number of lightning strikes on a square kilometer of open ground in a year has mean 6 and standard deviation 2.4. the national lightning detection network (nldn) uses automatic sensors to watch for lightning in a random sample of 10 one-square-kilometer plots of land. (a) what are the mean and standard deviation of the sampling distribution of , the sample mean number of strikes per square kilometer? (b) explain why you cannot safely calculate the probability that < 5 based on a sample of size 10. (c) suppose the nldn takes a random sample of n = 50 square kilometers instead. explain how the central limit theorem allows us to find the probability that the mean number of lightning strikes per square kilometer is less than 5. then calculate this probability. show your work.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:50
Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?
Answers: 1
question
Mathematics, 21.06.2019 21:30
Mon wants to make 5 lbs of the sugar syrup. how much water and how much sugar does he need… …to make 5% syrup?
Answers: 2
question
Mathematics, 21.06.2019 21:30
50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.
Answers: 3
question
Mathematics, 21.06.2019 23:00
Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.
Answers: 1
You know the right answer?
Lightning strikes the number of lightning strikes on a square kilometer of open ground in a year has...
Questions
question
Mathematics, 30.08.2019 13:30
question
History, 30.08.2019 13:30
question
Mathematics, 30.08.2019 13:30
question
Arts, 30.08.2019 13:30
Questions on the website: 13722361