A Company That Makes Shampoo Wants to Test Whether the Average

question 21

Multiple Choice

A company that makes shampoo wants to test whether the average amount of shampoo per bottle is 16 ounces.The standard deviation is known to be 0.20 ounces.Assuming that the hypothesis test is to be performed using 0.10 level of significance and a random sample of n = 64 bottles,which of the following would be the correct formulation of the null and alternative hypotheses?

• A)H₀ : = 16 H_A := 16
• B)H₀ : μ = 16 H_A : μ ≠ 16
• C)H₀ : μ ≥ 16 H_A : μ < 16
• D)H₀ : ≥ 16 H_A :

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Definitions:

Atomic Symbol

A one or two-letter abbreviation derived from the Latin name of an element, used to represent an element in the periodic table.

Boron

A chemical element with the symbol B and atomic number 5, used in fiberglass, borosilicate glass, and as a dopant in semiconductors.

Carbon

A non-metallic chemical element with symbol C, essential to all known life, forming organic compounds when combined with hydrogen, oxygen, etc.

Copper

A reddish-brown, ductile, and malleable metal that is a good conductor of heat and electricity, symbolized as Cu with an atomic number of 29.