Question text A manufacturer of car batteries claims that his product will last at least 4 years on average. A sample of
Posted: Sun Sep 05, 2021 5:02 pm
Question text
A manufacturer of car batteries claims that his
product will last at least 4 years on average. A sample of 41 is
taken and the mean and standard deviation are found. The test
statistic is calculated to be -1.656. Using a 5% level,
a) Specify the null
and alternative hypothesis?
b) What is the appropriate test
statistic?
c) What is the final decision
(accept or reject the null hypothesis)?
A manufacturer of car batteries claims that his
product will last at least 4 years on average. A sample of 41 is
taken and the mean and standard deviation are found. The test
statistic is calculated to be -1.656. Using a 5% level,
a) Specify the null
and alternative hypothesis?
b) What is the appropriate test
statistic?
c) What is the final decision
(accept or reject the null hypothesis)?