How would you justify using the correlation test? "Because the experiment...

... involves an association between two sets of data"

How would you justify using the chi-squared test? "Because the experiment...

... involves data that are categoric"

Which statement is a suitable null hypothesis?

There is no correlation between chocolate consumption & age

How would you justify using the t-test? "Because the experiment...

... involves comparing the mean values of two sets of data"

p<0.05, so the difference is significant

and the null hypothesis should be rejected

Population A has 1000 organisms, while population B has 5 organisms.

There is a difference between the measured populations, The measured difference is 995 organisms

Which statement is a suitable alternate hypothesis?

There is a difference in the effect of dark & milk chocs

Which statistical tests do you need to know about for A-level Biology?

Correlation test, t-test, chi-squared test

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Maths in Biology: Hypotheses and Stats Tests

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Questions 17

Answers

1
How would you justify using the correlation test? "Because the experiment...
... involves an association between two sets of data"
... involves comparing the values of two sets of data"
... involves data that are categoric"
... involves comparing the mean values of two sets of data"
2
How would you justify using the chi-squared test? "Because the experiment...
... involves comparing the values of two sets of data"
... involves data that are categoric"
... involves comparing the mean values of two sets of data"
... involves an association between two sets of data"
3
Which stats test? "There is no correlation between the height and body mass in giraffes"
Standard deviation
Chi-squared
Students' t-test
Correlation coefficient
4
Which statement is a suitable null hypothesis?
There is no correlation between chocolate consumption & age
The results of the experiment don't show a clear effect
There is a correlation between chocolate consumption & age
Nothing happened in the chocolate age experiment
5
How would you justify using the t-test? "Because the experiment...
... involves an association between two sets of data"
... involves comparing the mean values of two sets of data"
... involves data that are categoric"
... involves comparing the values of two sets of data"
6
Which test? "There is no difference in the mean height of giraffes eating pasta vs. bread"
Chi-squared
Correlation coefficient
Standard deviation
Students' t-test
7
p<0.05, so the difference is significant
and the results are false
and the results are true
and the null hypothesis should be rejected
and the null hypothesis should be accepted
8
Conventionally in statistics for biology, we use a p-value of:
0.01
5
0.5
0.05
9
A p-value of 0.14 is the same as
14%
140%
1.4%
0.14%
10
Which stats test? "There is no difference between the number of spots on tall vs pygmy tigers"
Standard deviation
Students' t-test
Chi-squared
Correlation coefficient
11
The probability of observing the results by chance is >0.05, so the difference is significant
True
False
12
Population A has 1000 organisms, while population B has 5 organisms.
The measured difference is significant
The measured difference is not significant
There is a difference between the measured populations
The measured difference is 995 organisms
13
Which statement is a suitable alternate hypothesis?
There is a difference in the effect of dark & milk chocs
The results showed there was an effect
There is no difference in the effect of dark & milk chocs
The results of the experiment showed there was no effect
14
p>0.01, so the difference is significant
True
False
15
p<0.01, so the difference is significant
True
False
16
A p-value of 0.005 is the same as
0.05%
5%
50%
0.5%
17
Which statistical tests do you need to know about for A-level Biology?
Correlation test, 95% confidence intervals, chi-squared test
Correlation test, error bars, chi-squared test
Correlation test, t-test, chi-squared test
Correlation test, standard deviation, chi-squared test

Maths in Biology: Hypotheses and Stats Tests Flashcards | StudBud

Maths in Biology: Hypotheses and Stats Tests

17 termsStudBud Administration997 plays

Maths in Biology: Hypotheses and Stats Tests

Flashcards17 cardsFPractice quizPHost liveL

Questions 17

Answers

1
How would you justify using the correlation test? "Because the experiment...
... involves an association between two sets of data"
... involves comparing the values of two sets of data"
... involves data that are categoric"
... involves comparing the mean values of two sets of data"
2
How would you justify using the chi-squared test? "Because the experiment...
... involves comparing the values of two sets of data"
... involves data that are categoric"
... involves comparing the mean values of two sets of data"
... involves an association between two sets of data"
3
Which stats test? "There is no correlation between the height and body mass in giraffes"
Standard deviation
Chi-squared
Students' t-test
Correlation coefficient
4
Which statement is a suitable null hypothesis?
There is no correlation between chocolate consumption & age
The results of the experiment don't show a clear effect
There is a correlation between chocolate consumption & age
Nothing happened in the chocolate age experiment
5
How would you justify using the t-test? "Because the experiment...
... involves an association between two sets of data"
... involves comparing the mean values of two sets of data"
... involves data that are categoric"
... involves comparing the values of two sets of data"
6
Which test? "There is no difference in the mean height of giraffes eating pasta vs. bread"
Chi-squared
Correlation coefficient
Standard deviation
Students' t-test
7
p<0.05, so the difference is significant
and the results are false
and the results are true
and the null hypothesis should be rejected
and the null hypothesis should be accepted
8
Conventionally in statistics for biology, we use a p-value of:
0.01
5
0.5
0.05
9
A p-value of 0.14 is the same as
14%
140%
1.4%
0.14%
10
Which stats test? "There is no difference between the number of spots on tall vs pygmy tigers"
Standard deviation
Students' t-test
Chi-squared
Correlation coefficient
11
The probability of observing the results by chance is >0.05, so the difference is significant
True
False
12
Population A has 1000 organisms, while population B has 5 organisms.
The measured difference is significant
The measured difference is not significant
There is a difference between the measured populations
The measured difference is 995 organisms
13
Which statement is a suitable alternate hypothesis?
There is a difference in the effect of dark & milk chocs
The results showed there was an effect
There is no difference in the effect of dark & milk chocs
The results of the experiment showed there was no effect
14
p>0.01, so the difference is significant
True
False
15
p<0.01, so the difference is significant
True
False
16
A p-value of 0.005 is the same as
0.05%
5%
50%
0.5%
17
Which statistical tests do you need to know about for A-level Biology?
Correlation test, 95% confidence intervals, chi-squared test
Correlation test, error bars, chi-squared test
Correlation test, t-test, chi-squared test
Correlation test, standard deviation, chi-squared test