406

Question 1

1 tailed hypothesis

Answer 1

Specifies direction

Question 2

2 tailed hypothesis

Answer 2

Can go in any direction

Question 3

Within groups

Answer 3

All in one groups

Question 4

Between groups

Answer 4

2 or more groups

Question 5

The sampling distribution of the mean indicates …

Answer 5

A distribution OF sample means

Question 6

Statistical significance

Answer 6

The probability of making a type 1 error

Question 7

Type 1 error

Answer 7

Falsely retain the H1

Question 8

Type 2 error

Answer 8

Falsely retain H0

Question 9

Descriptive statistics are primarily used to….?

Answer 9

Summarise sets of data

Question 10

When recording time in seconds, which scale of measurement is implied?

Answer 10

Ratio

Question 11

What is the level of data associated with the median ?

Answer 11

Ordinal

Question 12

The mean, mode and median are generally described as…

Answer 12

Measures of central tendency

Question 13

Given that 20% of cat owners prefer dogs, to the nearest whole number, out of 24 cat owners, how many prefer dogs?

Answer 13

5

Question 14

The sampling distribution of the mean indicates…

Answer 14

A distribution of sample means

Question 15

Assuming the population is normally distributed, what is the mean of the sampling distribution?

Answer 15

The population mean

Question 16

Assuming the population is normally distributed, what is the standard deviation of the sampling distribution?

Answer 16

The standard deviation of the population divided by the square root of the sample size

Question 17

Which of the following is most likely to lead to a non-normally distributed sampling distribution of the mean for a given sample size?

Answer 17

A skewed population distribution

Question 18

A one tailed p-value was reported as 0.08, what is it’s two tailed p-value?

Answer 18

0.16

Question 19

A p-value corresponds to…?

Answer 19

The probability of making a type 1 error

Question 20

Not an assumption of the one sample t-test

Answer 20

DV normally distributed in the sample

Question 21

In order for a calculated value of t to be significant it has to be …

Answer 21

Bigger than the critical value

Question 22

Which famous brewery did the inventor of the t-test work for?

Answer 22

Guinness

Question 23

What type of chart would you use to display a continuous frequency distribution?

Answer 23

Histogram

Question 24

Sums of Squares (SS) provides a measure of?

Answer 24

The total variability in a data set

Question 25

Variance provides a measure of..

Answer 25

The mean variability in a data set?

Question 26

Given that a set of 100 numbers has a sums of squares of 16, what is the variance of the set of numbers?

Answer 26

0.16

Question 27

Given that a set of 100 numbers has a variance of 16, what is the standard deviation of the set of numbers?

Answer 27

4

Question 28

Measures such as the standard deviation and range are generally described as

Answer 28

Measures of dispersion

Question 29

If a set of scores are normally distributed.. what percentage of scores (approx.) would you expect to fall within the mean and one standard deviation above the mean?

Answer 29

34%

Question 30

A standard score (Z score) is one which...

Answer 30

Is expressed as the scores distance from the mean in standard deviations

Question 31

Given that a normal distribution has a mean of 100 and a standard deviation of 10, what is the corresponding standard score (Z score) associated with a raw score of 115?

Answer 31

1.5

Question 32

For the numbers 1,2,4,4,5,8 What is the upper quartile (Q3)

Answer 32

5.75 | 3(n+1)/4

Question 33

What is the range of ... | 1,2,4,4,5,8

Answer 33

7