You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.56. You use a significance level of

=

0.002

=0.002

.

H

0

:

p

=

0.56

H0:p=0.56

H

1

:

p

>

0.56

H1:p>0.56

You obtain a sample of size n

=

448

n=448

in which there are 268 successes.

What is the test statistic for this sample? (Report answer accurate to three decimal places.)

test statistic =

What is the p-value for this sample? (Report answer accurate to four decimal places.)

p-value =

The p-value is...

• less than (or equal to)
• greater than

This test statistic leads to a decision to...

• reject the null
• accept the null
• fail to reject the null