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Hypothesis Testing - Setup: Suppose you want to test the claim that the mean volume in...

Hypothesis Testing - Setup: Suppose you want to test the claim that the mean volume in all 12-ounce cans of Fizzy Pop soda is less than 12 ounces. In a sample of 120 cans, you find the sample mean is 11.7 ounces.

(a) What is the claim?

μ < 12

μ > 12    

μ = 12

μ = 11.7


(b) What does μ represent?

the proportion of all cans with a volume < 12 ounces

the mean volume of all 12-ounce cans of Fizzy Pop    

the mean volume of all 120 cans from the sample


(c) What is the null hypothesis?

μ < 12

μ > 12    

μ = 12

μ = 11.7


(d) What is the alternate hypothesis?

μ < 12

μ > 12   

μ ≠ 12

μ = 11.7


(d) What type of test is this?

left-tailed

right-tailed   

two-tailed

math   Statistics-And-Probability   
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Answer #1

Solution-A:

Ho:mu=12

Ha:mu<12

claim is alternative hypothesis

mu -population mean

(a) What is the claim?

μ < 12

(b) What does μ represent?

the mean volume of all 12-ounce cans of Fizzy Pop    

(c) What is the null hypothesis?

μ = 12

(d) What is the alternate hypothesis?

μ < 12

(d) What type of test is this?

left-tailed

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