Park officials make predictions of times to the next eruption of a particular geyser, and collect data for the errors (minutes) in those predictions. the display from technology available below results from using the prediction errors to test the claim that the mean prediction error is equal to zero. comment on the accuracy of the predictions. use a

0.05

significance level. identify the null and alternativehypotheses, test statistic, p-value, and state the final conclusion that addresses the original claim.



click the icon to view the display from technology.

what are the null and alternative hypotheses?

a.

upper h 0h0:

muμequals=00

minutes

upper h 1h1:

muμless than< 00

minutes

b.

upper h 0h0:

muμequals=00

minutes

upper h 1h1:

muμnot equals≠00

minutes

c.

upper h 0h0:

muμequals=00

minutes

upper h 1h1:

muμgreater than> 00

minutes

d.

upper h 0h0:

muμless than< 00

minutes

upper h 1h1:

muμequals=00

minutes

identify the test statistic.

nothing