All categories

3 years ago

Year to date revenue

Mathematics

1 answer:

marishachu [46]3 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

A car agency charges $210.00 per week plus $0.15 per mile to rent a car. How many miles can you travel in one week for $328.50

Neko [114]

Answer:

You can travel 790 miles in one week for $328.50.

4 0

3 years ago

Given the system below:

Andrei [34K]

If F(x) =g(x) =2x,
x can be any value

4 0

3 years ago

Read 2 more answers

5. The superintendent of the local school district claims that the children in her district are brighter, on average, than the g

anygoal [31]

Answer:

We conclude that children in district are brighter, on average, than the general population.

Step-by-step explanation:

We are given the following data set:

105, 109, 115, 112, 124, 115, 103, 110, 125, 99

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.

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

$Mean =\displaystyle\frac{1117}{10} = 111.7$

Sum of squares of differences = 642.1

$S.D = \sqrt{\frac{642.1}{49}} = 8.44$

We are given the following in the question:

Population mean, μ = 106

Sample mean, $\bar{x}$ = 111.7

Sample size, n = 10

Alpha, α = 0.05

Sample standard deviation, s = 8.44

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 106\\H_A: \mu > 106$

We use one-tailed(right) t test to perform this hypothesis.

Formula:

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

Putting all the values, we have

$t_{stat} = \displaystyle\frac{111.7 - 106}{\frac{8.44}{\sqrt{10}} } = 2.135$

Now,

$t_{critical} \text{ at 0.05 level of significance, 9 degree of freedom } = 1.833$

Since,

$t_{stat} > t_{critical}$

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis.

We conclude that children in district are brighter, on average, than the general population.

4 0

3 years ago

7/10 write the number as hundredths in a fraction form and decimal form

klemol [59]

7/10 as hundredths decimal: .07

7/10 as fraction: 7/100

7 0

3 years ago

A quadrilateral has three angles which measure 23.5 degrees, 99 degree, and 100.4 degrees. What is the measure of the fourth ang

Schach [20]

I think it would be 137.1, due to the total being 360. Just subtract.

3 0

4 years ago

Read 2 more answers