Mathematics, 17.11.2019 06:31 aislamgomes22
Two friends are opening a coffee shop. as they write their business plan, they research the amount of debt similar businesses can have in the first two years of opening. it is known that
72% of coffee shops have a debt of over $50,000 within the first two years of opening. if a random sample of 36 coffee shops is obtained, what is the probability that more than half of them had a debt of over $50,000 within the first two years of opening?
Answers: 1
![P(\hat{p}0.50)=P(\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}\dfrac{0.50-0.72}{\sqrt{\dfrac{0.72(1-0.72)}{36}}})\\\\=P(z-2.94)\ \ \ [\because z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}]\\\\=P(z](/tpl/images/0378/1236/bc17f.png)
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Two friends are opening a coffee shop. as they write their business plan, they research the amount o...
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