Using the simple random sample of weights of women from a data set, we obtain these sample statistics: n=50 and x-bar =150.09 lbs. Research from other sources suggest that the population of weights of women has a standard deviation given by o=30.83lbs. a) Find the best point estimate of the mean weight of all women. b) Find a 95% confidence interval estimate of the mean weight of all womena) The best point estimate is .b) The 90% confidence interval estimate is lbs< mu <lbs.

4.08%

step-by-step explanation:

5

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct

answer: (1,3) (3,-1) (5,-5) ?

step-by-step explanation: