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3 years ago

How does math help with science

Mathematics

2 answers:

eimsori [14]3 years ago

7 0

Yes because u need to do units measures

Karo-lina-s [1.5K]3 years ago

5 0

Math helps with science because you'll need to know the math in order to convert units in science.

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Conduct the appropriate hypothesis test and compute the test statistic. A company that produces fishing line undergoes random te

andre [41]

Answer:

Option D) Yes, because the test statistic is -2.01

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 30 pound

Sample mean, $\bar{x}$ = 29.1 pounds

Sample size, n = 20

Alpha, α = 0.05

Sample standard deviation, s = 2 pounds

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 30\text{ pounds}\\H_A: \mu < 30\text{ pounds}$

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

Formula:

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

Putting all the values, we have

$t_{stat} = \displaystyle\frac{29.1 - 30}{\frac{2}{\sqrt{20}} } = -2.012$

Now,

$t_{critical} \text{ at 0.05 level of significance, 19 degree of freedom } = -1.729$

Since,

$t_{stat} < t_{critical}$

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis. Thus, there were enough evidence to conclude that the fishing line breaks with an average force of less than 30 pounds.

Option D) Yes, because the test statistic is -2.01

5 0

3 years ago

PLEASE HELP RN I WILL GIVE BRAINLIEST TO BEST ANSWER AND PLZ N.O L.I.N.K.S!!! :)

musickatia [10]

What was his average speed rate on his way to Seattle?
Ans: 62mph

On which part of his trip did he average a faster speed rate?
Ans: When he returned home.

6 0

3 years ago

What is the image of (−4,−12) after a dilation by a scale factor of 1/4 centered at the origin?

Rama09 [41]

Answer:

It would be (-1,-3)

Step-by-step explanation:

All you have to do is divide your point by 4, since it's a fractions. If it's not, multiply.

-4 / 4 = -1

-12 / 4 = -3

5 0

3 years ago

A moving company charges $0.70 per pound for a move from New York to Florida. A family estimates that their belongings weigh abo

mamaluj [8]

First, how many pounds are equal to 1 ton? 2000

Then, $0.70 x 2000 pounds

So, the cost to move is $1,400

Yep. It's that simple. :)

5 0

3 years ago

Jon has to pay $7.50 admission

lorasvet [3.4K]

Y=1.50x+7.50. 7.50 is the y intercept and 1.50 is the rate of change or slope

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3 years ago