Math 132A Group Wksht 9.2
McClurkin
Name:akl ot e
Date:
1.
A
consumer
protection
company is testing a seat belt to see how much force it can hold.
The
null
hypothesis,
H
ọ
, is that
the seat belt can hold at least 5000 pounds of force. The alternative
hypothesis,
H1, is that the seat belt can hold less than 5000 pounds of force.
(a)
What is a Type I Error in thisscenario?
iecomecty
snt 14dom
Pesenhess
ay
th at hane in
aayet
oadence !o
AUr
lavn when infoet
thoea
not
tt
intothe cty
faling to neject H,
rnconntet N.t
nupdeloi
Renenehe
hee n
nten vuh eudmee to auernt
(b)
What is a Type II Error in this scenario?
the lam
wln
et
hee o
2.
A pizza shop concluded that the introduction of a new pizza, the Alien SpaceSaucer, would increase
its sales by more than 14%. This conclusion was based on recording sales information for a random
sample
of
their
pizza shops across the state.
Ho, is that
the average sales increase is 14%.
The
alternative
hypothesis,
H1, is that the average sales increase is more than 14%.
(a)
What is a Type I Error in this scenario?
Ho = 5/.
tuff'eiat oudree
noles
whchn fret
th dia tthe cme
(b)
What is a Type II Error in this scenario?
wtene
tle ahunCvneldey hee
ntenugh
wta
to ur t ha chn IAsAenoeswilincne
mone
thon14 whenin t heywid
1
