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kap26 [50]
2 years ago
5

You are working as an office apprentice for the bksb Newcastle Arena.

Mathematics
2 answers:
Lemur [1.5K]2 years ago
7 0

Answer:

18480\\ dollar

Step-by-step explanation:

1\\ Euro is equal to $1.54\\

The agreed fee is Euro 12000

Fees in dollars

= 12000 * 1.54\\= 18480\\ dollar

trapecia [35]2 years ago
4 0

Answer:

$18480

Step-by-step explanation:

We are given that  The current exchange rate for US dollars ($) to British pounds (£) is this:  $1.54 : £1

Now ,

The American folk band, Patriots & Banjos, only accepts payment for concerts in US dollars.

The agreed fee was £12,000.

$1.54 : £1

So, fees in dollars = 12000 \times 1.54=18480

Hence the arena have $18480 to pay them

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Confidence interval : 21.506 to 24.493

Step-by-step explanation:

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Sample standard deviation = \sqrt{\frac{\sum(x-\bar{x})^2}{n-1}}

Sample standard deviation = \sqrt{\frac{(21-23)^2+(25-23)^2+(23-23)^2+(22-23)^2+(24-23)^2+(21-23)^2+(25-23)^2+(21-23)^2+(23-23)^2+(26-23)^2+(21-23)^2+(24-23)^2+(22-23)^2+(24-23)^2+(23-23)^2+(21-23)^2+(21-23)^2+(26-23)^2+(23-23)^2+(24-23)^2}{20-1}}

Sample standard deviation= s = 1.72

Degree of freedom = n-1 = 20-1 -19

Critical value of t using the t-distribution table t_{\frac{\alpha}{2} = 3.883

Formula of confidence interval : \bar{x} \pm t_{\frac{\alpha}{2}} \times \frac{s}{\sqrt{n}}

Substitute the values in the formula

Confidence interval : 23 \pm 1.73 \times \frac{1.72}{\sqrt{20}}

Confidence interval : 23 -3.883 \times \frac{1.72}{\sqrt{20}} to 23 + 3.883 \times \frac{1.72}{\sqrt{20}}

Confidence interval : 21.506 to 24.493

Hence Confidence interval : 21.506 to 24.493

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