Hypothesis Testing – Setup:
Suppose you want to test the claim that the mean volume in all 12-ouncecans of Fizzy Pop soda is greater than 12 ounces. In a sample of 80 cans, you find the sample mean is12.2 ounces.(a) What is the claim?
(d) What type of test is this?
Corn:
In a random sample of 120 ears of corn, farmer Carl finds that 13 of them have worms. Carl claims that less than 20% of all his corn has worms. Test this claim at the 0.01 significance level.(a) What is the sample proportion of corn with worms?Round your answer to 3 decimal places.
Assembly Time:
In a sample of 40 adults, the mean assembly time for a child’s swing set was 1.76hours with a standard deviation of 0.78 hours. The makers of the swing set claim the average assembly time is less than 2 hours. Test their claim at the 0.10 significance level.
(a) What type of test is this?
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