1. The New York Times wants to know the average cost of a taxicab ride in ride in New York City. 40 random taxis were selected and a mean of $12.035 and a standard deviation of $8.361 was found. Use a 0.05 significance level to test the claim that the mean cost of a taxicab in NYC is less than $15.00.
   1. Are we asked to test a claim about a population proportionor population mean? Justify your answer.

1. If we are testing a claim about a population mean, would we use the z-distribution or t-distribution. Why? Explain. OR write N/A if this does not apply.

1. List and check any requirements that need to be met. Justify why each requirement is met.

1. State the null and alternative hypotheses symbolicallyand with a complete sentence.

1. Is the test a two-tailed, left-tiled, or right-tailed?

1. The p-value for this claim is 0.0153. State your conclusion in context of the problem?