Claim: The average hourly wage of educators on Prince Edward Island is 19.97
Canadian dollars per hour.
The appropriate test is a test for
A ) 2 Proportions
B ) 2 Independent Means
C ) 1 Proportion
D ) 1 Mean
E ) Paired Means
The test statistic is t=1.34, the critical value is t=2.011.
The decision would be to ...
A ) Reject the null hypothesis
B ) Support the alternative hypothesis
C ) Do not reject the null hypothesis
D ) Support the null hypothesis
The test statistic is t = 2.63 and the p-value is 0.9849.
What type of test is this?
A ) Can't tell
B ) Left tail
C ) Right tail
D ) Two tail
Claim: The average life expectancy of a Canadian female is 20 years more than it was
in 1920.
The appropriate test is a test for
A ) 1 Mean
B ) 2 Proportions
C ) 1 Proportion
D ) Paired Means
E ) 2 Independent Means
The test statistic is z=0.86, the critical value is z=1.645.
This is a ...
A ) Right tail test
B ) Left tail test
C ) Two tail test
The defendant is in a murder trial is guilty.
Is this the null hypothesis or the alternative hypothesis?
A ) Alternative Hypothesis
B ) Null hypothesis
C ) Neither hypothesis
The test statistic is z=2.75, the critical value is z=2.326
The probability value is ...
A ) Greater than the significance level
B ) Less than the significance level
C ) Equal to the significance level
The test statistic is t=2.45, the critical value is t=-1.74
This is a ...
A ) Right tail test
B ) Left tail test
C ) Two tail test
The test statistic is z=-2.33, the critical values are z=+/- 1.96.
The decision would be to ...
A ) Support the null hypothesis
B ) Support the alternative hypothesis
C ) Retain the null hypothesis
D ) Reject the null hypothesis
Claim: 37% of all males smoke.
The appropriate test is a test for
A ) 1 Proportion
B ) Paired Means
C ) 2 Proportions
D ) 1 Mean
E ) 2 Independent Means
Claim: People with diabetes are more likely to be female than male.
The appropriate test is a test for
A ) 2 Proportions
B ) 1 Proportion (Sadece diabet hastaları içinde bir oran sorgulanıyor)
C ) 1 Mean
D ) Paired Means
E ) 2 Independent Means
Claim: Democrats are more likely than Republicans to support environmental issues.
The appropriate test is a test for
A ) Paired Means
B ) 2 Proportions
C ) 1 Mean
D ) 2 Independent Means
E ) 1 Proportion
Write the claim symbolically:
Men are more likely than women to smoke.
A ) p(men) = p(women)
B ) p > 0.5, where success is a male
C ) p(men) > p(women)
D ) mu(men) > mu(women)
The probability value is 0.042, the significance level is 0.05.
The decision is ...
A ) Do not reject the null hypothesis
B ) Support the alternative hypothesis
C ) Support the null hypothesis
D ) Reject the null hypothesis
Write the claim symbolically:
Smokers are more likely to be men than women.
A ) p(men) = p(women)
B ) mu(men) > mu(women)
C ) p(men) > p(women)
D ) p > 0.5, where success is a male (Diabet sorusuna benziyor)
A jury fails to convict* an innocent person.
What type of error is this?
A ) Type I Error
B ) There is no error
C ) Type II Error
Convict=suçlu bulmak
A smoke detector goes off* when there is no fire.
What type of error is this?
A ) Type II Error
B ) There is no error
C ) Type I Error
Go off=çalışmak
P-value = 0.015, Significance Level = 0.05.
There is ________ evidence to ________ the claim that the mean is 25.
A ) enough / support
B ) not enough / reject
C ) not enough / support
D ) enough / reject
There is a fire, but the smoke detector doesn't go off.
What type of error is this?
A ) Type II Error
B ) Type I Error
C ) There is no error
P-value = 0.384, Significance Level = 0.10.
There is ________ evidence to ________ the claim that there is no difference
between the scores of men and women.
A ) enough / reject
B ) enough / support
C ) not enough / support
D ) not enough / reject
The probability value is 0.122, the significance level is 0.10.
The decision is ...
A ) Do not reject the null hypothesis
B ) Support the null hypothesis
C ) Support the alternative hypothesis
D ) Reject the null hypothesis
If the critical value is 2 and the standard error is 1.4, what is the margin of error?
A ) 2.8
B ) Depends on whether it's a student's t or standard normal distribution.
C ) 1.4
D ) 0.7
Write the claim symbolically:
The annual cost of a nursing home is $57,000 per year.
A ) mu > 57000
B ) mu = 57000
C ) p = 57000
D ) mu = 57000 / 365
A doctor says a man is okay when he really has prostate cancer.
What type of error is this?
A ) There is no error
B ) Type I Error
C ) Type II Error
Test Statistic: t = 2.374, Critical Values: t = +/- 2.011.
There is ________ evidence to ________ the claim that the before and after results
are the same.
A ) not enough / reject
B ) enough / support
C ) not enough / support
D ) enough / reject
P-value = 0.073, Significance Level = 0.05.
There is ________ evidence to ________ the claim that there is a difference in the
proportions.
A ) not enough / support
B ) enough / support
C ) not enough / reject
D ) enough / reject
A jury convicts an innocent person.
What type of error is this?
A ) There is no error
B ) Type I Error
C ) Type II Error
Write the claim symbolically:
Women earn less than men
A ) mu(men) = mu(women)
B ) mu(men) > mu(women)
C ) mu(women) > mu(men)
D ) p(women) < p(men)
Write the claim symbolically:
67% of young adults find premarital sex to be morally acceptable.
A ) p = 0.67
B ) 67%
C ) p > 0.67
D ) mu = 67
I claim that in TOEFL test Turkish students is at most 230.
a.If randomly selected scores of 60 students is 220 with population variance of 1600.
Is this information enough to argue that I am mistaken?
:
Critical value = 1.64
Do not reject.
b.I reclaim (this time) that in TOEFL test Turkish students 230. Test the claim.
:
Critical value =+-1.96 Do not reject H0
I claim that Greek students are more successful than Turkish students in TOEFL test.
You collect data from both Greek and Turkish students. Data shows that 40 Greek
students get on the average 225 with sample standard deviation of 30 and 60 Turkish
students get on the average 220 with sample standard deviation of 40.
a.Test my claim and you are allowed to use nearest figures in the relevant table.
Degrees of freedom=39
Critical Value (Tabloda yok)=1.684
Do not Reject
b.What if my claim was students of both nations are equally successful.
Degrees of freedom=39
Critical Value (Tabloda yok)=2.021
Do not Reject