Mathematics, 23.04.2020 00:56 jecorie
A sample of 1500 computer chips revealed that 37% of the chips fail in the first 1000 hours of their use. The company's promotional literature states that 39% of the chips fail in the first 1000 hours of their use. The quality control manager wants to test the claim that the actual percentage that fail is different from the stated percentage. Find the value of the test statistic. Round your answer to two decimal places.
Answers: 2
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Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.
Answers: 1
A sample of 1500 computer chips revealed that 37% of the chips fail in the first 1000 hours of their...
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