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Aleks04 [339]
3 years ago
10

Can somebody pls help me!! :(( it’s due today

Mathematics
1 answer:
Lemur [1.5K]3 years ago
6 0

Answer: $4110.8 (more likely - 95% sure) or $2,107 (less likely)

Step-by-step explanation: It could be $4110.8 because you have the take the total they made and subtract is from the cost of the toys ($7,230-$2,450=$4,780). Then you have to take the result of that and get 14% of it, then subtract that from the $4,780 amount. Then you get the final answer which is $4110.8.

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However, it could also be $2,107 because the question itsn't that clear in the second sentence. It could be saying that $2,450 is the price of the toys (which is what I assumed above), or that it is the profit that the $2,450 (which I used below). I think that the above answer is more likely because if not then the first number would never be used. Anyways here is the second way it could be.

Step-by-step explanation: It could be $2,107 because you take the profit ($2,450) and get 14% of it, then subtract that from the $2,450 amount. Then you get the final answer which is $2,107.

If I was you, I would do the first one ($4110.8) because I really think it is that one. I just put the other one here just in case.

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A sample size of 35 is needed.

Step-by-step explanation:

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So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the width W as such

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In which \sigma is the standard deviation of the population and n is the size of the sample.

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