Aresearcher believes that women today weigh less than in previous years. to investigate this belief, he randomly samples 41 adult women and records their weights. the scores have a mean of 111 lbs. and a standard deviation of 12.4. a local census taken several years ago shows the mean weight of adult women was 115 lbs.
refer to exhibit 13-1. what do you conclude, using a = 0.011 tail?
a) accept h1
b) accept h0
c) reject h0
d) retain h0

Option B) Accept            

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 115 lbs

Sample mean, =  111 lbs

Sample size, n = 41

Alpha, α = 0.01

Sample standard deviation, s = 12.4 lbs

First, we design the null and the alternate hypothesis

We use One-tailed t test to perform this hypothesis.

Formula:

Putting all the values, we have

Now,

Since,                  

We fail to reject the null hypothesis and accept the null hypothesis.

x= 149. 24+7=31. 180-31=149

your welcome

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)