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Statistics Trimester 2 2021 Exam Buster

Total questions: 58

Worksheet time: 47mins

Name
Class
Date
1.

Define what A and B are, retrospectively.

a)

Estimate, Parameters

b)

Parameters, Estimate

c)

Describe, Statistics

d)

Statistics, Describe

2.

What are the two types of Statistical Inference?

a)

Elimination and hypothalamus testing

b)

Estimation and hypothalamus testing

c)

Estimation and hypothesis testing

d)

Elimination and hypothesis testing

3.

All Bell-Shaped Curves are ‘normal’

a)

True

b)

False

4.

1. Correlation is ________, Regression is ___________.

a)

Causal, non-causal

b)

Non-causal. Causal

c)

Linear, not linear

d)

Not linear, linear

5.

Identify the correct terms for A, B, C and D, retrospectively:

a)

correct, type 1, type 2, correct

b)

type 1, correct, correct, type 2

c)

type 2, correct, correct, type 1

d)

correct, type 2, type 1, correct

6.

Practice Question 1 (PQ1): What type of test is this?

4 lines
7.

PQ1: What is the research question for this test?

4 lines
8.

PQ1: What are the null and alternative hypotheses?

4 lines
9.

PQ1: What formula do you use to calculate the test statistic?

a)

Sum of (O + E)2/E

b)

(O - E)2/E

c)

Sum of (O - E)2/E

d)

(O + E)2/E

10.

PQ1: What is the degrees of freedom for this question?

a)

4

b)

3

c)

2

d)

5

11.

PQ1: What significance level is used for this test?

a)

0.95

b)

0.5

c)

0.03

d)

0.05

12.

PQ1: What is the Critical Value for this test?

a)

0.711

b)

0.352

c)

7.185

d)

9.488

13.

PQ1: What did you calculate as the test statistic?

4 lines
14.

PQ1: Are we rejecting of failing to reject the null hypothesis?

a)

Reject

b)

Fail to reject

15.

PQ1: Write a conclusion based on your results

4 lines
16.

PQ1: According to the results, is there a possibility of type 1 or type 2 error?

a)

Type 1

b)

Type 2

17.

How do you feel regarding this type of test (PQ1)?

a)

Great!

b)

Ok!

c)

Eh...

d)

Nopeeeeeee....

18.

Practice Question 2 (PQ2): What type of test is this?

4 lines
19.

PQ2: What is the research question for this test?

4 lines
20.

PQ2: What are the null and alternative hypotheses?

4 lines
21.

PQ2: What is the Critical Value for this test?

4 lines
22.

PQ2: What did you calculate as the test statistic for this question?

4 lines
23.

PQ2: Are we rejecting of failing to reject the null hypothesis?

a)

Reject

b)

Fail to reject

24.

PQ2: Write a conclusion based on your results

4 lines
25.

PQ2: According to the results, is there a possibility of type 1 or type 2 error?

a)

Type 1

b)

Type 2

26.

How do you feel regarding this type of test (PQ2)?

a)

Great!

b)

Ok!

c)

Eh...

d)

Nopeeeeeee....

27.

Practice Question 3 (PQ3): What type of test is this?

4 lines
28.

PQ3: What is the research question for this test?

4 lines
29.

PQ3: What are the null and alternative hypotheses?

4 lines
30.

PQ3: What are the degrees of freedom?

4 lines
31.

PQ3: What is the Critical Value for this test?

4 lines
32.

PQ3: What formula do you use to calculate the test statistic?

a)

x‾ − μstdn\frac{\overline{x}\ -\ \mu}{\frac{std}{\sqrt[]{n}}}  

b)

((x1)− x2) ‾ − (μ1 − μ2)Sp1n+ 1n\frac{\overline{\left(\left(x1\right)-\ x2\right)\ }\ -\ \left(\mu1\ -\ \mu2\right)}{\frac{Sp}{\sqrt[]{\frac{1}{n}+\ \frac{1}{n}}}}  

c)

TMS/EMS

d)

(O - E)2/E

33.

PQ3: What did you calculate as the test statistic for this test?

4 lines
34.

PQ3 Are we rejecting of failing to reject the null hypothesis?

a)

Reject

b)

Fail to reject

35.

PQ3: Write a conclusion based on your results

4 lines
36.

PQ3: According to the results, is there a possibility of type 1 or type 2 error?

a)

Type 1

b)

Type 2

37.

How do you feel regarding this type of test (PQ3)?

a)

Great!

b)

Ok!

c)

Eh...

d)

Nopeeeeeee....

38.

Practice Question 4 (PQ4): What type of test is this?

4 lines
39.

PQ4: What is the research question for this test?

4 lines
40.

PQ4: What are the null and alternative hypotheses?

4 lines
41.

PQ4: What are the degrees of freedom?

4 lines
42.

PQ4: What is the significance level for this question?

a)

0.05

b)

0.5

c)

0.025

d)

0.04

43.

PQ4: What is the Critical Value for this test?

4 lines
44.

PQ4: What did you calculate as the variance ratio for this question?

4 lines
45.

PQ4: Write a conclusion based on your results

4 lines
46.

PQ4: is an LSD (poc-hoc) test required?

a)

Yes

b)

No

47.

PQ4: What formula did you use to determine the LSD calculation?

a)

CV (F table @ 0.025) x sqrt(EMS) x sqrt(1/n + 1/n)

b)

CV (t table @ 0.05) x sqrt(EMS) x sqrt(1/n + 1/n)

c)

CV (t table @ 0.025) x sqrt(EMS) x sqrt(1/n + 1/n)

d)

CV (F table @ 0.025) x sqrt(TMS) x sqrt(1/n + 1/n)

48.

PQ4: If you answered yes to the previous question - which groups were determined as significant?

a)

Pesticide D

b)

Pesticide E

c)

Pesticide F

d)

All pesticides are significantly different from each other.

e)

None - the test failed to reject the null.

49.

PQ4: Write a conclusion based on your results

4 lines
50.

PQ4: According to the results, is there a possibility of type 1 or type 2 error?

a)

Type 1

b)

Type 2

51.

How do you feel regarding this type of test (PQ4)?

a)

Great!

b)

Ok!

c)

Eh...

d)

Nopeeeeeee....

52.

Practice Question 5 (PQ5): What type of test is this?

4 lines
53.

QP5: Determine what the N, X and P values are for this test

a)

N = 20

X = 9

P = 0.25

b)

N = 19

X = 9

P = 0.5

c)

N = 19

X = 9

P = 0.25

d)

N = 20

X = 9

P = 0.5

54.

PQ5: What is the research question for this test?

4 lines
55.

PQ5: What is the Critical Value for this type of test?

4 lines
56.

PQ5: Write a conclusion based on your results for this test type

4 lines
57.

PQ5: According to your results, is there a possibility of type 1 or type 2 error?

a)

Type 1

b)

Type 2

58.

PQ5: What did you calculate as the test statistic for this question?

Use this formula (N x X) x P x (1 - P)^(N-X) or the number generator

4 lines

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