subject
Mathematics, 08.02.2021 23:40 barattah

At West High, 45% of the students play sports while at East High 40% of the students play sports. Random samples of 50 students from each large high school are selected. Let pW-pE be the difference in the sample proportion of the students that play sports. What is the shape of the sampling distribution of pW-pE ? Why?

What is the mean of the sampling distribution of pW-pE ?

What is the standard deviation of the sampling distribution of pW-pE ? Why?

What is the probability of the students that play sports in the sample from East High greater than the proportion of students that play sports in the sample from West High?

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 16:10
Determine whether the following statements are true and give an explanation or counterexample. bold a. when using the shell method, the axis of the cylindrical shells is parallel to the axis of revolution. bold b. if a region is revolved about the y-axis, then the shell method must be used. bold c. if a region is revolved about the x-axis, then in principle it is possible to use the disk/washer method and integrate with respect to x or the shell method and integrate with respect to y.
Answers: 3
question
Mathematics, 21.06.2019 17:30
Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?
Answers: 1
question
Mathematics, 21.06.2019 20:30
Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?
Answers: 1
question
Mathematics, 21.06.2019 22:30
Pls never taught i’m really confused and i rlly need
Answers: 1
You know the right answer?
At West High, 45% of the students play sports while at East High 40% of the students play sports. Ra...
Questions
Questions on the website: 13722361