STAT 211 FINAL EXAM LATEST
QUESTIONS WITH 100% SOLVED
ANSWERS!!
1 of 41
Term
We produce rubber balls with a mean of 2 pounds. However, there is
variability to those weights and 95% of our production fall between 1.952
and 2.049 pounds. If we want 99% of our production to fall within these
boundaries, what is the standard deviation of our new
process?
Give this one a try later!
, 6.310 0.056
0.01902 0.35
Don't know?
2 of 41
Term
What phrase do I use to start most classes?
Give this one a try later!
Ok, let's get started That's all I've got for now
"tightest downward" to
"loosest downward" etc N = 36
Don't know?
3 of 41
Term
Which of the following has been used as an example
multiple times in class this semester?
,Give this one a try later!
Analyzing the final exam Creating a presentation on
results to determine class the history of statistical
performance. methods.
Collecting student sample
Conducting a survey to
measure statistics as a
student satisfaction with the demonstration of the
course. sampling distribution.
Don't know?
4 of 41
Term
A local brake repair facility advertises that their typical cost
for "basic brake service" is $125. We feel that claim may be
too low and randomly sample 30 records over their past
month's billing for this type of service. The mean and
standard deviation were $127.50 and
$5.25 respectively. At a 5% alpha level, what is the critical
value for the sample mean that would cause us to reject
the null hypothesis and what's the conclusion in this
case?
Give this one a try later!
ok, let's get started 130
the test statistic is weak and the
xbar critical = 126.58 and
minimal alpha level to reject
reject the null
, based on this sample
was about 22.76%
QUESTIONS WITH 100% SOLVED
ANSWERS!!
1 of 41
Term
We produce rubber balls with a mean of 2 pounds. However, there is
variability to those weights and 95% of our production fall between 1.952
and 2.049 pounds. If we want 99% of our production to fall within these
boundaries, what is the standard deviation of our new
process?
Give this one a try later!
, 6.310 0.056
0.01902 0.35
Don't know?
2 of 41
Term
What phrase do I use to start most classes?
Give this one a try later!
Ok, let's get started That's all I've got for now
"tightest downward" to
"loosest downward" etc N = 36
Don't know?
3 of 41
Term
Which of the following has been used as an example
multiple times in class this semester?
,Give this one a try later!
Analyzing the final exam Creating a presentation on
results to determine class the history of statistical
performance. methods.
Collecting student sample
Conducting a survey to
measure statistics as a
student satisfaction with the demonstration of the
course. sampling distribution.
Don't know?
4 of 41
Term
A local brake repair facility advertises that their typical cost
for "basic brake service" is $125. We feel that claim may be
too low and randomly sample 30 records over their past
month's billing for this type of service. The mean and
standard deviation were $127.50 and
$5.25 respectively. At a 5% alpha level, what is the critical
value for the sample mean that would cause us to reject
the null hypothesis and what's the conclusion in this
case?
Give this one a try later!
ok, let's get started 130
the test statistic is weak and the
xbar critical = 126.58 and
minimal alpha level to reject
reject the null
, based on this sample
was about 22.76%
