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4 years ago

What is the interquartile range of the data set 2,5,9,11,18,30,42,48,55,73,81

Mathematics

2 answers:

Eva8 [605]4 years ago

8 0

Answer:

Step-by-step explanation:

To find the interquartile range, subtract the highest value from the lowest value.

The highest value is 81 and the lowest is 2 so you would have to subtract 81 by 2.

81-2=79

Maru [420]4 years ago

7 0

Answer:

Step-by-step explanation:

The interquartile range is the difference between the upper quartile and the lower quartile.

The data must be in ascending order which it is.

First find the median which is the middle value of the data set

2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

↑ median = 30

The upper and lower quartiles are positioned at the middle of the data to the right and left of the median.

2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

↑ ↑

upper quartile = 55 and lower quartile = 9

Interquartile range = 55 - 9 = 46

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What are factors of 110

blsea [12.9K]

Answer:

Factors of 110

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Prime Factorization of 110: 110 = 2 × 5 × 11.

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3 years ago

A newspaper reports that the population mean annual salary of a full-time college professor in a certain region is exactly $127,

Leya [2.2K]

Answer:

Option B) Fail to reject the null hypothesis that the true population mean annual salary of full-time college professors in the region is equal to $127,000.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $127,000

Sample mean, $\bar{x}$ = $126,092

Sample size, n = 160

Alpha, α = 0.10

Sample standard deviation, σ = $8,509

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 127000\text{ dollars}\\H_A: \mu \neq 127,000\text{ dollars}$

We use Two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

$t_{stat} = -1.35$

Now, $t_{critical} \text{ at 0.10 level of significance, 159 degree of freedom } = \pm 1.654$

Since,

The calculated t-statistic lies in the acceptance region, we fail to reject and accept the null hypothesis.

Option B) Fail to reject the null hypothesis that the true population mean annual salary of full-time college professors in the region is equal to $127,000.

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3 years ago

What is the product of 7/9 and 4

Inga [223]

Answer:

3.11111111111

Step-by-step explanation:

(7 / 9) × 4 =

3.11111111111

4 0

3 years ago

I need help ASAP WHAT is 3.63x5 and I need to show work

gavmur [86]

Answer:

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Step-by-step explanation:

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4 years ago

Read 2 more answers

D) (K<br> If f(x) = x3 and g(x) = 2x + 7, what is g(x)<br> when x = 2?

nadya68 [22]

Answer:

Step-by-step explanation:

g(x) = 2x + 7

Put x as 2 and evaluate.

g(2) = 2(2) + 7

Multiply.

g(2) = 4 + 7

Add the terms.

g(2) = 11

3 0

3 years ago