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Softa [21]
2 years ago
8

Create an equivalent expression that includes a set of parentheses that make the value of the expression 5. Remember, you can ha

ve two or more numbers within the set of parentheses.
32+10-8+2-3.GIVING BRAINLYEST
Mathematics
1 answer:
Naily [24]2 years ago
8 0
Answer: the Answer is 33
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Fifteen SmartCars were randomly selected and the highway mileage of each was noted The analysis yielded a mean of 47 miles per g
laiz [17]

Answer: a. 47 plusminus (1.753*(5 ÷ 3.8730)

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

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n = number of samples = 15

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From the information given, the population standard deviation is unknown and the sample size is small, hence, we would use the t distribution to find the test statistic score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 15 - 1 = 14

Since confidence level = 90% = 0.90, α = 1 - CL = 1 – 0.90 = 0.1

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Looking at the t distribution table,

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Confidence interval = 47 ± 1.753(5 ÷ 3.8730)

8 0
3 years ago
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