Multiple choice question

Travelocity would like to test if the average roundtrip airfare between New York and London is equal to $1,400. A random sample of 30 flights between New York and London was selected and an average airfare of $1,330 was recorded for the sample. The sample standard deviation is $230. Use alpha = 0.01.

The test statistic is

Select one:

a.-1.67.

b.1400.

c.230.

d.1.67

The sample standard deviation is $230. Use alpha = 0.01. The p-value is ______ and the null hypothesis should _________:

Select one:

a.Between 0.05 and 0.1; be rejected.

b.0.095; not be rejected.

c.0.0475; be rejected.

d.Between 0.1 and 0.2; not be rejected.