A small dealership leased 21 Suburu Outbacks on 2-year leases. When the cars were returned at the end of the lease, the mileage was recorded (see below). 40,010 24,996 14,340 17,359 44,712 44,525...

A small dealership leased 21 Suburu Outbacks on 2-year leases. When the cars were returned at the end of the lease, the mileage was recorded (see below).

(a)Is the dealer's mean significantly greater than the national average of 29,393 miles for 2-year leases? Using the 10 percent level of significance, choose the appropriate hypothesis.

1. 
   H
   ₀:μ ≤ 29,393 miles vs.H
   ₁:μ > 29,393 miles, rejectH
   ₀ ift
   _calc > 1.3250


2. 
   H
   ₀:μ ≥ 29,393 miles vs.H
   ₁:μ > 29,393 miles, rejectH
   ₀ ift
   _calc > 1.3250


3. 
   H
   ₀:μ ≤ 29,393 miles vs.H
   ₁:μ < 29,393="" miles,="">H
   ₀ ift
   _calc > 1.3250


4. 
   H
   ₁:μ ≤ 29,393 miles vs.H
   ₀:μ > 29,393 miles, rejectH
   ₀ ift
   _calc > 1.3250

b)Calculate the test statistic.(Round your answer to 2 decimal places.)


Test statistic