Historical data show that 12.5% of newly purchase vehicle are electric. Suppose a sample of 500...
Historical data show that 12.5% of newly purchase vehicle are electric. Suppose a sample of 500 new vehicle is collected in 2020 to determine whether the electric vehicle purchase increased in 2020 .
a. Formulate the hypotheses that can be used to determine whether the electric vehicle purchased increased in 2020 .
H_0:
H_a:
b. If the sample results show that 60 of the new vehicle purchase were electric. At alpha=0.05, what is your conclusion?
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Historical data show that 12.5% of newly purchase
vehicle are electric. Suppose a sample of 500...
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