3 years ago

Helppp pleaseee!!!!!

Mathematics

1 answer:

babunello [35]3 years ago

4 0

I can’t see the picture

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Our environment is very sensitive to the amount of ozone in the upper atmosphere. The level of ozone normally found is 7.8 parts

Alexxandr [17]

Answer:

The value of the test statistic is $t = 2.67$

Step-by-step explanation:

The null hypothesis is:

$H_{0} = 7.8$

The alternate hypotesis is:

$H_{1} \neq 7.8$

Our test statistic is:

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis, $\sigma$ is the standard deviation and n is the size of the sample.

In this problem, we have that:

$X = 8.2, \mu = 7.8, \sigma = 0.6, n = 16$

Then

$t = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}$

$t = \frac{8.2 - 7.8}{\frac{0.6}{\sqrt{16}}}$

$t = 2.67$

The value of the test statistic is $t = 2.67$

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3 years ago

The sticker has a base of 6.5cm and a height of 10.1. What is the area of the sticker?

coldgirl [10]

Answer:

65.65

Step-by-step explanation:

1) Carry over the decimals in each number.

2) Multiply. This will give you 6,565.

3) Carry the decimal place and count how many times you moved it over. (2=1+1) Therefore, it gives you 65.65

I hope this helped

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What is the DEGREE of Vertex B?

Jet001 [13]

The degree of vertex b is b

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Personal finance 9.2

zzz [600]

Answer:

nice!

Step-by-step explanation:

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A video posted on the internet has gone viral, and the total number of views is increasing by 25% every hour. If the video curre

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2 years ago