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Andrew [12]
1 year ago
13

7. Suppose we are interested in comparing the average years of service accountants have between males and females to see if ther

e is a significant difference between the genders and how long they have stayed in their current job. The following data is provided:
Mathematics
1 answer:
Scorpion4ik [409]1 year ago
4 0

The 99% confidence interval for the difference between the average years of service between men and women would be = 3.43.

<h3>What is confidence intervals?</h3>

Confidence interval is defined as the statistical parameter that is used to know if a set of values would fall within a certain range of population or not.

Using the statistical table, the value of 99% or 0.99 confidence interval has a z-score = 2.576

The standard error that exists between the bothe value = SD/Ö

Where SD = difference between the standard deviations = 8.39 - 4.39 = 4

Where ñ = different between the average years of service = 9.62

Standard error= 4/√9.62 = 4/3.01 = 1.33

The confidence interval = 2.576 × 1.33 = 3.43.

Learn more about confidence interval here:

brainly.com/question/26658887

#SPJ1

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Answer:

This means that Tina has enough t-shirts for the entire trip and doesn't need to pack any more t-shirts.

Step-by-step explanation:

In total, she has five t-shirts, and she is packing for a five-day trip. Therefore, she has enough shirts to last her the entire trip.

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Perform the following food service calculation.
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Assume a fair deck of playing cards. Find the probability of drawing a 10, replacing it and drawing an ace.
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There are 52 cards in a deck. The total number of outcomes possible when picking 2 cards and replacing them is 52 * 52 = 2704.

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Please answer as fast as you can! Ty for ur time :)
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Step-by-step explanation:

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7 0
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Read 2 more answers
Y is directly proportional to square root of x<br> If y=56 when x=49 find,<br> y when x=81
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\qquad \qquad \textit{direct proportional variation} \\\\ \textit{\underline{y} varies directly with \underline{x}}\qquad \qquad \stackrel{\textit{constant of variation}}{y=\stackrel{\downarrow }{k}x~\hfill } \\\\ \textit{\underline{x} varies directly with }\underline{z^5}\qquad \qquad \stackrel{\textit{constant of variation}}{x=\stackrel{\downarrow }{k}z^5~\hfill } \\\\[-0.35em] \rule{34em}{0.25pt}

\stackrel{\begin{array}{llll} \textit{"y" directly}\\ \textit{proportional to }\sqrt{x} \end{array}}{y = k\sqrt{x}}\qquad \textit{we know that} \begin{cases} y = 56\\ x = 49 \end{cases}\implies 56=k\sqrt{49} \\\\\\ 56=7k\implies \cfrac{56}{7}=k\implies 8=k~\hfill \boxed{y=8\sqrt{x}} \\\\\\ \textit{when x = 81, what is "y"?}\hfill y=8\sqrt{81}\implies y=8(9)\implies y=72

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2 years ago
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