When testing gas pumps for accuracy, fuel-quality enforcement specialists tested pumps and found that 13001300 of them were not pumping accurately (within 3.3 oz when 5 gal is pumped), and 56935693 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. Identify the null hypothesis and alternative hypothesis.
When testing gas pumps for accuracy, fuel-quality enforcement specialists tested pumps and found that 13001300 of them were not pumping accurately (within 3.3 oz when 5 gal is pumped), and 56935693 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. Identify the null hypothesis and alternative hypothesis.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.3: Special Probability Density Functions
Problem 9E
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When testing gas pumps for accuracy, fuel-quality enforcement specialists tested pumps and found that
normal distribution as an approximation to the binomial distribution.
13001300
of them were not pumping accurately (within 3.3 oz when 5 gal is pumped), and
56935693
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 Identify the null hypothesis and alternative hypothesis.
Upper H 0H0:
pnot equals≠0.2
Upper H 1H1:
pequals=0.2
Upper H 0H0:
pequals=0.2
Upper H 1H1:
pnot equals≠0.2
Upper H 0H0:
pequals=0.2
Upper H 1H1:
pgreater than>0.2
Upper H 0H0:
pequals=0.2
Upper H 1H1:
pless than<0.2
Upper H 0H0:
pgreater than>0.2
Upper H 1H1:
pequals=0.2
Upper H 0H0:
pless than<0.2
Upper H 1H1:
pequals=0.2
The test statistic is
zequals=nothing.
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