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Rus_ich [418]
3 years ago
9

(4 2/3+ 1 1/6) - 1 5/6​

Mathematics
1 answer:
Olin [163]3 years ago
3 0

Answer:

The answer is 4.

Step-by-step explanation:

Change 4 2/3 to 4 4/6 to match 11/6.

Add 4 4/6 and 11/6 and get 4 15/6.

Subtract 4 15/6 by 15/6 and get 4.

4 is the answer.

I hope this helps.

Have a nice day!

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anyanavicka [17]
Equation
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The average annual premium for automobile insurance in the United States is $1411. A representative sample of annual premiums fo
Harrizon [31]

Using confidence interval concepts, it is found that:

a) The point estimate is the sample mean.

b) The confidence interval is: \overline{x} \pm T\frac{s}{n}

c) If $1411 is between the bounds of the interval yes, otherwise no.

--------------

  • At item a, it asks to provide a point estimate for the population mean, which is the sample mean \overline{x}

--------------

Item b:

  • In the spreadsheet, it is possible to find the <em>standard deviation for the sample</em>, thus, the t-distribution is used.
  • The confidence interval will be given by:

\overline{x} \pm T\frac{s}{n}

In which:

  • \overline{x} is the sample mean.
  • T is the critical value, from the t-distribution, with a two-tailed area of \frac{1 - 0.95}{2} = 0.025 and n-1 degrees of freedom.
  • s is the standard deviation for the sample.
  • n is the sample size.

--------------

Item c:

We have to check if 1411 is between \overline{x} - T\frac{s}{n} and \overline{x} +T\frac{s}{n}.

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A similar problem is given at brainly.com/question/24232455

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Which value is NOT equivalent to the other values?
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