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Nana76 [90]
3 years ago
9

jacob bought some tickets to see his favorite singer. He bought some adult tickets and some children's tickets, for a total of 9

tickets. The adult tickets cost $10 per ticket, and the children's tickets cost $8 per ticket. If he spent a total of $76, then how many adult and children's tickets did he buy ?
Mathematics
1 answer:
uysha [10]3 years ago
8 0
6 adult tickets and 2 children’s tickets !
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<h2><u>Answer with explanation</u>:</h2>

Let \mu be the population mean.

As per given , we have

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Also, population standard deviation is given \sigma=1 , so we perform one-tailed z-test.

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