Section 9.2 # 68abc Weight loss: A doctor has developed a new diet to help people lose weight. A random sample of 500 people went on the diet for six weeks. The mean number of pounds lost was x = 0.5. Assume the standard deviation is a = 5. Let u be the population mean number of pounds lost. To determine whether the diet is effective. A test is made of the hypotheses H, u = 0 versus H₁ μ> 0. A) Compute the value of the test statistic. B) Compute the P value. C) Do you reject H, at the a= 0.05 level?

Q: 5. If a number plus 4 equals two times 6, what is the number?

A:

Q: 2/7 + -4/3

A: Given,

Q: 3y² - 2y-1 (-)-5y²- 2y +6

A:

Q: (1,-16) and (-3,12)

A: To write down the equation of the straight line joining the two given points.

Q: From the list below, select the values of x for which f'(x) > 0. 2 -1 None of the listed x values -3…

A: Given graph of function

Q: C3x2 + – 4 kx - 5x- 6.

A:

Q: X+X+y if x = 9 and y = 3

A: Given data is x = 9 and y = 3   find x + x + y = ?

Q: x+6 x+5 + = 8 2 3.

A: Simplify the rational expression as follows, The common factor of the denominator is 6. So, multiply…

Q: 4x + 2y=8 6x - 4y=5

A: Given4x+2y=8 and    --- Eq 16x-4y=5           --- Eq 2We solve for x and yFrom Eq 1:2y=8-4x…

Q: order of (Z4, +4) for each element

A: order of (Z4, +4) for each element

Q: 4 1/2 + 3 2/3=

A: Given,

Q: -5,4y+14-2y=4

A: Given ,  4y + 14 - 2y = 4     ....... (1)  We have to find value of y  (1) implies

Q: 2 plus 2

A:

Q: How do I find numbers 2 and 4?

A:

Q: 5\4p=4/3p+5/2

A:

Q: 4=6/2x-3

A: Given query is to find the value of x.

Q: x + y+ z = 2 2 2.

A: Given surface is z=f(x,y)=2-x-y Now , volume of the solid is where R is projection of the solid in…

Q: 4+b=30

A: It is addition and subtraction of numbers.

Q: 0.3x  +  4.6y  =  1 1.6x  +  1.3y  =  2

A: Consider the following system of linear equations: 0.3x+4.6y=1                               ......…