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vaieri [72.5K]
3 years ago
10

Find 230 percent of 46

Mathematics
1 answer:
vampirchik [111]3 years ago
5 0
The correct answer is 105.8
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An air transport association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maxim
Flura [38]

Answer:

The 95% confidence interval estimate of the population mean rating for Miami is (6.0, 7.5).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the population mean, when the population standard deviation is not provided is:

CI=\bar x \pm t_{\alpha/2, (n-1)}\cdot \frac{s}{\sqrt{n}}

The sample selected is of size, <em>n</em> = 50.

The critical value of <em>t</em> for 95% confidence level and (<em>n</em> - 1) = 49 degrees of freedom is:

t_{\alpha/2, (n-1)}=t_{0.05/2, 49}\approx t_{0.025, 60}=2.000

*Use a <em>t</em>-table.

Compute the sample mean and sample standard deviation as follows:

\bar x=\frac{1}{n}\sum X=\frac{1}{50}\times [1+5+6+...+10]=6.76\\\\s=\sqrt{\frac{1}{n-1}\sum (x-\bar x)^{2}}=\sqrt{\frac{1}{49}\times 31.12}=2.552

Compute the 95% confidence interval estimate of the population mean rating for Miami as follows:

CI=\bar x \pm t_{\alpha/2, (n-1)}\cdot \frac{s}{\sqrt{n}}

     =6.76\pm 2.000\times \frac{2.552}{\sqrt{50}}\\\\=6.76\pm 0.722\\\\=(6.038, 7.482)\\\\\approx (6.0, 7.5)

Thus, the 95% confidence interval estimate of the population mean rating for Miami is (6.0, 7.5).

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2 years ago
Barb is building a shed 30 feet away from her house. On a map of her backyard, she drew the shed 14 inches away. Complete the sc
saul85 [17]
I think B 2.9 feet hope that helped
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2 years ago
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Is 262015 divisible by 4?
eduard

Answer:

65503.75

Step-by-step explanation:

262015 divisble by 4 = 65503.75

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3 years ago
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Clara read 2/3 of a book. which fraction is equivalent to what clara read?
Tanya [424]
Uhh i think maybe 4/6?
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3 years ago
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What is the value of x in the equation below?<br><br> 7x + 8 = -13
ivann1987 [24]

Answer:

x=-3

Step-by-step explanation:

7x=-13-8

7x=--21

x=-21/7

x=-3

points or brainleist please

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2 years ago
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