According to a recent study in New York, 15% of shoppers are unfairly being charged sales tax in non-taxable items.  Mr. Hypothesis feels this proportion is too low.  He tests his belief by conducting a survey of 200 random shoppers. Which of the following is the null hypothesis?   a. The percent of shoppers unfairly being charged sales tax on non-taxable items < .15   b. The percent of shoppers unfairly being charged sales tax on non-taxable items > .15   c. The percent of shoppers unfairly being charged sales tax on non-taxable items = .15

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According to a recent study in New York, 15% of shoppers are unfairly being charged sales tax in non-taxable items.  Mr. Hypothesis feels this proportion is too low.  He tests his belief by conducting a survey of 200 random shoppers. Which of the following is the null hypothesis?

  a.

The percent of shoppers unfairly being charged sales tax on non-taxable items < .15

  b.

The percent of shoppers unfairly being charged sales tax on non-taxable items > .15

  c.

The percent of shoppers unfairly being charged sales tax on non-taxable items = .15

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