If the efficiency expert set an alpha level of

p

< .05

, which of the probabilities stated below would suggest a

statistically significant difference in the time taken to read the circular and rectangular visual displays?

a) 0.01

b) 0.0310

c) 0.008

d) 0.36

e) 0.80

f) 0.035

g) 0.014

h) 0.10

i) 0.134

j) 0.0068

k) 0.0051

l) 0.101

m) 0.51

n) 0.0451

o) 0.055

p) 0.065

q) 0.04879

r) 0.5051

s) 0.45

t) 0.000001

2) Using the statements in question 1 above, and for an alpha level of

p

< .05

, determine whether the

researcher made an error or a correct decision for the following:

a) The researcher obtained a probability of

p < .0104

and failed to reject the null hypothesis (

H

0

); in other

words, he concluded that there was no statistically significant difference between the time taken to read the

circular and rectangular displays.

b) The researcher obtained a probability of

p < .0649

and rejected the null hypothesis (

H

0

); in other words, he

concluded that there was a statistically significant difference between the time taken to read the circular and

rectangular displays.

c) The researcher obtained a probability of

p < .003

and failed to reject the null hypothesis (

H

0

); in other

words, he concluded that there was no statistically significant difference between the time taken to read the

circular and rectangular displays.

d) The researcher obtained a probability of

p < .055

and failed to reject (

H

0

); in other words, he concluded that

there was no statistically significant difference in the time taken to read the circular and rectangular displays.

e) The researcher obtained a probability of

p < .420

and rejected the null hypothesis (

H

0

); in other words, he

concluded that there was a statistically significant difference between the time taken to read the circular and

rectangular displays.

f) The researcher obtained a probability of

p < .9801

and failed to rejected the null hypothesis (

H

0

); in other

words, he concluded that there was no statistically significant difference between the time taken to read the

circular and rectangular displays.