A manufacturer claims that the thickness of the spearmint gum it produces is 7.5 one-hundredths of an inch. A

quality control specialist regularly checks this claim. On one production run, he took a random sample of n = 10 pieces of gum and measured their thickness. He obtained the following scores:

7.65  

7.60  

7.65  

7.70  

7.55  

7.55

7.40

7.40

7.50

7.50

The quality control specialist’s hypotheses are:

H0 : μ = 7.5

HA : μ ≠ 7.5

The quality control specialist entered his data into Minitab and requested that the “one-sample t-test” be conducted for the above hypotheses and α=0.05. What was his output?A manufacturer claims that the thickness of the spearmint gum it produces is 7.5 one-hundredths of an inch. A quality control specialist regularly checks this claim. On one production run, he took a random sample of n = 10 pieces of gum and measured their thickness. He obtained the following scores:

7.65  

7.60  

7.65  

7.70  

7.55  

7.55

7.40

7.40

7.50

7.50

The quality control specialist’s hypotheses are:

H0 : μ = 7.5

HA : μ ≠ 7.5

The quality control specialist entered his data into Minitab and requested that the “one-sample t-test” be conducted for the above hypotheses and α=0.05. What was his output?

 

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