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3 years ago

What is the median of the data set?

2 answers:

8 0

The answer is 36 because you start with the first number and cancel it out then you move to the last number and cancel that out. You continue this process (first last first last) until you find the middle number.

LUCKY_DIMON [66]3 years ago

3 0

The median is the middle number

= 36

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What’s the value of -3

tatiyna

Answer:

None

Step-by-step explanation:

5 0

4 years ago

The number of "destination weddings" has skyrocketed in recent years. For example, many couples are opting to have their wedding

melamori03 [73]

Answer:

We conclude that the mean wedding cost is less than $30,000 as advertised.

Step-by-step explanation:

We are given the following data set:(in thousands)

29100, 28500, 28800, 29400, 29800, 29800, 30100, 30600

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{236100}{8} = 29512.5$

Sum of squares of differences = 3408750

$S.D = \sqrt{\frac{3408750}{7}} = 697.82$

Population mean, μ = $30,000

Sample mean, $\bar{x}$ = $29512.5

Sample size, n = 8

Alpha, α = 0.05

Sample standard deviation, s = $ 697.82

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 30000\text{ dollars}\\H_A: \mu < 30000\text{ dollars}$ We use one-tailed t test to perform this hypothesis.

Formula:

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

Putting all the values, we have

$t_{stat} = \displaystyle\frac{29512.5 - 30000}{\frac{697.82}{\sqrt{8}} } = -1.975$

Now,

$t_{critical} \text{ at 0.05 level of significance, 7 degree of freedom } = -1.894$

Since,

$t_{stat} < t_{critical}$

We fail to accept the null hypothesis and reject it.

We conclude that the mean wedding cost is less than $30,000 as advertised.

8 0

4 years ago

Please help me fast I don’t have much time to answer so I need help!!!!

Sonja [21]

Answer:

Step-by-step explanation:

you click the first one then you click the second one then you click the fourth one

4 0

3 years ago

Can someone pls help me with this question?

Vadim26 [7]

Answer:

look up desmos graphing cauculator and type in each function .

Step-by-step explanation:

3 0

3 years ago

Is 73 a composite or prime

Oliga [24]

The only factors of 73 are itself and one so it is a prime number.

6 0

4 years ago