Use the accompanying200 Los Angeles commute times to test the claim that the mean Los Angeles commute time is less than 33 minutes. Assume that a simple random sample has been selected. Use a 0.01 significance level. Compare the sample mean to the claimed mean of

33 minutes. Is the difference between those two values statisticallysignificant?

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Click the icon to view the Los Angeles commute times.

Question content area bottom

Part 1

Identify the null and alternative hypotheses.

H0:

mu

equals=

3333

H1:

mu

less than<

3333

(Type integers or decimals. Do notround.)

Part 2

Identify the test statistic.

enter your response here

(Round to two decimal places asneeded.)