Answer:
616
Step-by-step explanation:
The equation to find the area of a trapezoid is: A = ½ (b+b²) h.
b1=43
b2=45
h=14
Plug the variables in and solve.
A sample of 1100 computer chips revealed that 58% of the chips fail in the first 1000 hours of their use. The company's promotio
nal literature claimed that 61% fail in the first 1000 hours of their use. Is there sufficient evidence at the 0.05 level to dispute the company's claim? State the null and alternative hypotheses for the above scenario.
1 answer:
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