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seropon [69]
2 years ago
5

Meryl spends a total of $68.82 for 2 pairs of sneakers with the same cost. The sales tax is $5.32. Meryl also uses a coupon for

$3.00 off her purchase. How much does each pair of sneakers cost?
Mathematics
2 answers:
ArbitrLikvidat [17]2 years ago
4 0
The answer is $33.25
kakasveta [241]2 years ago
4 0
Each pair costs $33.25

You add the $3 to get a total of 71.82
Then you subtract 5.32 to get 66.50.
Then divide by 2 to get the final answer.
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Read 2 more answers
A random sample of size 15 taken from a normally distributed population revealed a sample mean of 75 and a sample variance of 25
GREYUIT [131]

Answer:

The upper limit of a 95% confidence interval for the population mean would equal 83.805.

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The standard deviation is the square root of the variance. Since the variance is 25, the sample's standard deviation is 5.

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T interval:

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 15 - 1 = 14

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The upper limit of a 95% confidence interval for the population mean would equal 83.805.

4 0
3 years ago
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