Answer Happy

You may need to use the appropriate appendix
table or technology to answer this question.
Given are five observations for two
variables, x and y. (Round your
answers to two decimal places.)
xi
yi
(a)
Use sŷ* = s
to estimate the standard deviation of
ŷ*
when
x = 4.
(b)
Use
ŷ* ± t𝛼/2sŷ*
to develop a 95% confidence interval for the expected
value of y when
x = 4.
to
(c)
Use spred = s
to estimate the standard deviation of an individual value
of y when
x = 4.
(d)
Use
ŷ* ± t𝛼/2spred
to develop a 95% prediction interval
for y when
x = 4.
to