When testing gas pumps for accuracy, fuel-quality enforcement specialists tested pumps and found that
1275 of them were not pumping accurately (within 3.3 oz when 5 gal is pumped), and 5682
pumps were accurate. Use a 0.01 significance level to test the claim of an industry representative that less than 20% of the pumps are inaccurate. Use the P-value method and use the normal distribution as an approximation to the binomial distribution.
A) Identify the null hypothesis and alternative hypothesis.
B) The test statistic is z equals=
C) The P-value is
D) because the P value is (Greater than/ less than) the significance level ( reject/ fail to reject) the null hypothesis. There is ( sufficient/ insufficient)
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