Answer:
-2
Step-by-step explanation:
In a linear regression model we have the equation
that relates
and
, where
is the estimator of the slope and
is the estimator of the Y-intercept. The coefficients
and
can be estimated with the equations:

. Thus,

Do you know how to graph by finding the x and y intercepts? Or can you solve for y so your equation looks like y=mx+b?
Answer:
Step-by-step explanation:
Given that sample size = n=45
mu = 64 and sigma =14
a) Sample mean will follow a normal distribution irrespective of the original distributions provided
i) samples are randomly drawn
ii) samples represent the population
iii) Sample size is sufficiently large
b) Here we have sample std dev= 

c) 