A rods manufacturer makes rods with a length that is supposed to be 10 inches. A quality control technician sampled 14 rods and found that the sample mean length was 10.07 inches and the sample standard deviation was 0.11 inches. The technician claims that the mean rod length is more than 10 inches.   What type of hypothesis test should be performed? Select:              Right-tailed t-test              Left-tailed z-test              Left-tailed t-test              Two-tailed z-test        What is the test statistic? What is the number of degrees of freedom?   Does sufficient evidence exist at the α=0.01 significance level to support the technician's claim? Select: ________Yes      OR ________NO

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A rods manufacturer makes rods with a length that is supposed to be 10 inches. A quality control technician sampled 14 rods and found that the sample mean length was 10.07 inches and the sample standard deviation was 0.11 inches. The technician claims that the mean rod length is more than 10 inches.
 
What type of hypothesis test should be performed? Select:             
Right-tailed t-test             
Left-tailed z-test             
Left-tailed t-test             
Two-tailed z-test     
 
What is the test statistic? What is the number of degrees of freedom?
 
Does sufficient evidence exist at the α=0.01 significance level to support the technician's claim? Select: ________Yes      OR ________NO   
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