A book about college reports that the mean time students study each week is 1015 minutes. A dean says she believes the mean is greater than 1015 minutes. Suppose she takes a random sample of 64 students and finds that the sample mean is 1050 minutes. Assume the population standard deviation is 150 minutes. Test the deans claim at a = 0.05. Use this scenario to answer questions 6-10 6) State the alternative and null hypothesis 7) Calculate the test statistic

Q: Šolve for x. 10x + 14 Вх - 23

A: The figure given below represents the diagram of two triangles. For triangle ABC and triangle AED,…

Q: can you explain the first few questions aswell

A: Frequency Polygon: A frequency polygon is a graph that displays the distribution of a dataset. In…

Q: part c parked as wrong answer

A: Mean()=12Standard deviation()=4

Q: Solve. 3 =D2 518 4.

A: Given. A linear equation in X such that 3X/4 + 5/8 = 2

Q: Need questions 4 5 and 6 answered please

A: 4. Given: μ=70, σ=5 The corresponding z-values needed to be computed: The probability that a score…

Q: This answer is incorrect. Can you try again?

A:

Q: Need help for question 1. And question 2.

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Question 4 too please.

A:

Q: What can you conclude regarding the numbers y and z if x z?

A: Given x<y, x>z

Q: 3. Solve for x.

A:

Q: Is this for question 2 or 3?

A: The standard deviation is 0.2.

Q: 4. X = 100

A:

Q: X+ 12 x +5 R 11

A: We can find 'x' as below.

Q: 1.

A:

Q: 0.3x+7.5-11=24

A:

Q: what about questions 4-15?

A:

Q: Question 9

A:

Q: 2. 9=x-2y 3x + 5 = 2y

A: The given equations are system of linear equations in variables x and y. We solve these by…

Q: do question 10

A:

Q: Simplify. 1 -2 - 5 +y -1 -2 + y X

A: Topic- Equation

Q: do question 7

A:

Q: 14 to 9.

A: For given right triangle Base B = 14 Prependicular P = 9 Therefore tan(x°) = P/B

Q: 3. solve the limeor d.cle ý+ 3y= e"

A: Solution: The objective is to find the general solution to the given differential equation

Q: Can someone complete question 2

A: The given function is:f(x,y)=(x+5)eyGiven point is:P=(3, 0)

Q: firel

A: The mean is given by