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NNADVOKAT [17]
3 years ago
8

The equation of the trend line on the scatterplot below is y= 1.3x - 0.52 Using the trend line equation, what is the predicted a

pproximate value of y when x = 3.5?
Mathematics
2 answers:
Luba_88 [7]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Just took the Test

Airida [17]3 years ago
6 0
Replace x in the equation with 3.5 and do the arithmetic.
  y = 1.3*3.5 -0.52
  y = 4.55 -0.52
  y = 4.03

The predicted approximate value of y is 4.03.
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soldi70 [24.7K]
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3 years ago
How do you convert repeating decimals into fractions
diamong [38]

Answer:So, To convert a decimal to a fraction, begin by placing that decimal over the number 1. Then keep multiplying both the numerator (top number) and denominator (bottom number) by 10 until both are whole numbers.

Step-by-step explanation:

So, To convert a decimal to a fraction, begin by placing that decimal over the number 1. Then keep multiplying both the numerator (top number) and denominator (bottom number) by 10 until both are whole numbers.

7 0
3 years ago
A cereal box filling machine is designed to release an amount of 16 ounces of cereal into each box, and the machine’s manufactur
Paraphin [41]

Using the z-distribution, it is found that since the p-value is less than 0.05, there is evidence that the mean amount of cereal in each box is different from 16 ounces at 0.05 significance.

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the mean is not different to 16 ounces, that is:

H_0: \mu = 16

At the alternative hypothesis, it is tested if the mean is different, hence:

H_1: \mu \neq 16

<h3>What is the test statistic?</h3>

The test statistic is:

z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}

In which:

  • \overline{x} is the sample mean.
  • \mu is the value tested at the null hypothesis.
  • \sigma is the standard deviation of the population.
  • n is the sample size.

The parameters for this problem are:

\overline{x} = 15.75, \mu = 16, \sigma = 1.46, n = 150.

Hence:

z = \frac{\overline{x} - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{15.75 - 16}{\frac{1.46}{\sqrt{150}}}

z = -2.1

<h3>What is the p-value and the conclusion?</h3>

Using a z-distribution calculator, for a two-tailed test, as we are testing if the mean is different of a value, with z = -2.1, the p-value is of 0.0357.

Since the p-value is less than 0.05, there is evidence that the mean amount of cereal in each box is different from 16 ounces at 0.05 significance.

More can be learned about the z-distribution at brainly.com/question/16313918

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3 0
1 year ago
Charlie and Susan are planning a part for 10 people. Charlie finds a location that charges a initial fee of $20 plus $25 per per
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Answer:

B. Susan's location is cheaper for 10 people.

D. The charge for each additional person is greater for Charlie's location.

3 0
3 years ago
Y = 34x + 12<br><br> y = 43x
Yuri [45]

Answer:

I don’t understand what your asking

Step-by-step explanation:

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