How many tissues should a package of tissues contain? Researchers have determined that a person uses an average of 66 tissues during a cold. Suppose a random sample of 10,000 people yielded the following data on the number of tissues used during a cold: $\bar { x } = 61 , s = 25$. We want to test the alternative hypothesis $H _ { \mathrm { a } } : \mu 1.96$ or $z

Question

How many tissues should a package of tissues contain? Researchers have determined that a person uses an average of 66 tissues during a cold. Suppose a random sample of 10,000 people yielded the following data on the number of tissues used during a cold:

\bar { x } = 61 , s = 25

. We want to test the alternative hypothesis

H _ { \mathrm { a } } : \mu < 66

. State the correct rejection region for

\alpha = .05

.
A) Reject

H _ { 0 }

if

z < - 1.645

.
B) Reject

H _ { 0 }

if

z > 1.645

.
C) Reject

H _ { 0 }

if

z > 1.96

or

z < - 1.96

.
D) Reject

H _ { 0 }

if

z < - 1.96

.

Quizplus · Accepted Answer

The Answer of How many tissues should a package of tissues contain? Researchers have determined that a person uses an average of 66 tissues during a cold. Suppose a random sample of 10,000 people yielded the following data on the number of tissues used during a cold: $\bar { x } = 61 , s = 25$. We want to test the alternative hypothesis $H _ { \mathrm { a } } : \mu < 66$. State the correct rejection region for $\alpha = .05$. A) Reject $H _ { 0 }$ if $z < - 1.645$. B) Reject $H _ { 0 }$ if $z > 1.645$. C) Reject $H _ { 0 }$ if $z > 1.96$ or $z < - 1.96$. D) Reject $H _ { 0 }$ if $z < - 1.96$.

How Many Tissues Should a Package of Tissues Contain? Researchers xˉ=61,s=25\bar { x } = 61 , s = 25xˉ=61,s=25

How Many Tissues Should a Package of Tissues Contain? Researchers $\bar { x } = 61 , s = 25$