Question

A manufacturer claims that the yhickness of the spearmint gum it produces is 7.5 one-hundredths of an inch. A quality control specialist reqularly checks this claim. On one production run,he took a random sample n=10 pieces of gum and measured their thickness. He obtained as follows. Construct and test hypothesis at %5 significance level.

7.65	7.60	7.65	7.70	7.55
7.55	7.40	7.40	7.50	7.50

Answer 1

We are conducting a one sample t-test here.



We conclude that there is not enough evidence to suggest that the thickness of the spearmint gum is exactly 7.5 one-hundredths of an inch.