When testing gas pumps for accuracy, fuel -quality enforcement specialists teste

Question

When testing gas pumps for accuracy, fuel -quality enforcement specialists tested pumps and found that 1288 of them were not pumping accurately (within 3.3 or when 5 gal is pumped). And 5677 pumps were accurate.Use a 0.01 significant level to test the claims of an industry representative that less than 20% of the pumps are in accurate.use the p-value method and use the normal distribution as an approximation to the bi normal distribution identify the null hypothesis and alternatives hypothesis H_0:p = 0.2 H_1 notequal 0.2 H_0 = 0.2 H_1:p>0.2 H_0:p>0.2 H_1:p = 0.2 H_0 p notequal0.2 H_1p = 0.2 H_0 = 0.2 H_1:p

Explanation / Answer

p = 1288 / ( 1288+5677 ) = 0.1849

test Z = 0.1849 - 0.20 / srqt ( 0.20*0.80 / 6965 )

Z = -3.15

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.