# Answer on Statistics and Probability Question for Jordan

Question #41902

Firebrick Tire Company wants to increase sales of its long running, low end Roadmaster Tire brand with a new advertising campaign claiming they will last at least 28,000 miles [u=28,000 miles]. Tests with a random sample [n=30 tires] show a sample mean [x=$27,500 miles] with a sample standard deviation [s=1000 miles]. At a .05 level of significance, these tests indicate

a. Reject Ho: Z of -2.7386 less than -1.6450

b. Reject Ho: Z of -2.7386 less than 1.6450

c. Do not reject Ho: Z of 1.6450 less than 2.7386

d. Do not reject Ho: Z of -1.6450 less than 2.7386

e. None of the Above

a. Reject Ho: Z of -2.7386 less than -1.6450

b. Reject Ho: Z of -2.7386 less than 1.6450

c. Do not reject Ho: Z of 1.6450 less than 2.7386

d. Do not reject Ho: Z of -1.6450 less than 2.7386

e. None of the Above

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