The regression equation below relates the scores students in an advanced statistics course received for homework completed and the subsequent midterm exam. Homework scores are based on assignments that preceded the exam. The maximum homework score a student could obtain was 500 and the maximum midterm score was 350. The regression line that was obtained is given by y= -84.4+ .91x If a student had a homework score of 420, the midterm score would be predicted to be:_______

Answers

Answer 1

Answer:

294

Step-by-step explanation:

Given the regression equation :

y= -84.4+ .91x

The value of the x axis is the independent variable which is the homework score ; the predicted variable is the mid term score, which is the values represented on the y - axis :

. Hence, For a student whose homework score, x = 420 ; the predicted mid term score will be :

y= -84.4+ .91(420)

y = - 84.4 + 378

y = 293.6

y = 294


Related Questions

I need help with this geometry question guyss!!

Answers

Answer:

Step-by-step explanation:

If a quadrilateral is a parallelogram, then its opposite sides are congruent. If a quadrilateral is a parallelogram, then its opposite angles are congruent. If a quadrilateral is a parallelogram, then its diagonals bisect each other.

28 is equal to how many hundredths and tenths

Answers

Answer:

0 hundredths. 2 tenths and 8 ones

I think 200 hundredths and 80 tenths

I’ll give points and brainalist for correct answer / explanation

Answers

Answer:

i think you forgot to attach the image lol

Step-by-step explanation:

2 (a) Simplify.
(i) a6 a2
O pop

Answers

Answer:

a4...................hope this helps

If f(x) = 3-x, what is f(2)?

Answers

Answer:

f(x) = 3 - x

x = 2

f(2) = 3 - 2

f(2) = 1

Plss this is timed will mark brain least if shown work!

Answers

Answer:

good

Step-by-step explanation:frog

Are congruent triangles also similar?

Answers

Answer: yes they are

Step-by-step explanation:

If two pairs of corresponding angles in a pair of triangles are congruent, then the triangles are similar. We know this because if two angle pairs are the same, then the third pair must also be equal.

Answer:

Yes

Step-by-step explanation:

While congruent triangles are similar, similar triangles may not be congruent.

Here are two patterns made using identical rhombuses. Without using a protractor, determine the value of a and b. (Remember that all the way around a circle is 360°. Start by finding the measure of angle a in the figure on the left.)

Answers

Answer:

hope it helps

Step-by-step explanation:

have a great day

Which of the following is true about the expression 7 + V3?

Answers

Answer:

is this a multiple-choice question?

Step-by-step explanation:

**i'll go back and change my answer, i promise**

Peter is the owner of a hardware supply shop. He has hired you to check his machines calibration prior to starting production on a large order. To check this, you set the machine to create 2.0 inch nails and manufacture a random sample of 200 nails. That sample of nails has an average length of 2.024 inches with a standard deviation of 0.205 inches.


Does this sample provide convincing evidence that the machine is working properly or should it be shut down for repairs?

Answers

Answer:If we compare the p value and the significance level assumed we see thatso we can conclude that we have enough evidence to FAIL reject the null hypothesis, so we can conclude that the true mean is not different from the specification at 1% of signficance.  

Step-by-step explanation:

The machine is working properly based on the convincing evidence provided by the sample.

How to calculate the test statistics.

For the null hypothesis, we would test that:

H0 : p = 2

For the alternate hypothesis, we would test that:

Ha > p = 2

In Mathematics, the test statistics of a given sample is calculated by using this formula:

[tex]Z=\frac{x\;-\;u}{\frac{\sigma}{\sqrt{n} } }[/tex]

Where:

x is the sample mean.u is the mean.is the standard deviation.n is the sample size.

Substituting the given parameters into the formula, we have;

[tex]Z=\frac{2.024\;-\;2}{\frac{0.205}{\sqrt{200} } }\\\\Z=\frac{0.024}{\frac{0.205}{14.14} }\\\\Z=\frac{0.024}{0.0145 }[/tex]

Z = 1.66.

For the p-value:

P(Z > Zo) = P(Z > 1.66)

P(Z > 1.66) = P(Z < -1.66)

P(Z < -1.66) = 0.0485.

From the z-table, a z-score of 1.66 corresponds has a p-value of 0.0485. Therefore, the p-value for this test is 0.0485 < 2 while assuming a confidence level of 95%.

In conclusion, we fail to reject the null hypothesis because 0.0485 < 2.

Read more on null hypothesis here: https://brainly.com/question/14913351

Vertical angles are equal in measure.
always
sometimes
O never

Answers

Answer:

Always

Step-by-step explanation:

Thank you have a great day

I need help please.

Answers

Answer:

Step-by-step explanation: Just do 0.25+0.25 then the answer x 0.18 and then divide the answer by 2 and it should equal 0.045

2. Rewrite the following as mixed fractions in simplest form.
a. 1,75

Answers

Step-by-step explanation:

question is not understandable bro i can't understand


Factor completely
486+108x+6x^2

Thank you!

Answers

Answer:

6(x + 9) (x + 9)

or

[tex]6 (x+9)^{2}[/tex]

Step-by-step explanation:

[tex]468 + 108x + 6x^{2} \\6x^{2} +108x + 468[/tex]

Greatest common factor of 6, 108, and 486:

6 x 1 = 6

6 x 18 = 108

6 x 81 = 486

GCF: 6

so:

[tex]6(x^{2} +18x +81)[/tex]

[tex]x^{2} +18x + 81[/tex]

factors to:

(x + 9) (x + 9)

because:

9 x 9 = 81

9 + 9 = 18

So:

It factors completely too:

6(x + 9) (x + 9)

or

[tex]6 (x+9)^{2}[/tex]

What decimal is equivalent to 8/40?

Answers

Answer:

0.20

Step-by-step explanation:

8 divided by 40 equals 0.2

0.20 is the decimal is equivalent to 8/40.

What is decimal?

A group of numbers between integers on a number line are known as decimals. They are merely an additional mathematical representation of fractions. Decimals allow us to express measurable quantities like length, weight, distance, money, etc. with greater accuracy. Integers, also known as whole numbers, are represented to the left of the decimal point, while decimal fractions are represented to the right of the decimal point. The next place, which is (1/10)th or tenth place value, is (1/10) times smaller if we move immediately from the first place.

Given:

Fraction = 8/40

Now, simplifying the given fraction

8/40

= 8/( 8x 5)

= 1/5

=0.20

Hence, 0.20 is the decimal is equivalent to 8/40.

Learn more about decimal here:

https://brainly.com/question/109147

#SPJ2

Mrs Brown and Mrs Jones make 4 dozen sandwiches in half an hour in Mrs Jones’ small kitchen. If they had 30 friends in to help, how many sandwiches could be made in the same time?

Answers

Answer:

1488 sandwiches in thirty minutes

Step-by-step explanation:

The table shows the fraction of the box of eggs that she will use to make different breakfast items. The family will choose from these items in the table
Food Choices Fraction of Eggs used
Egg Salad
2.
Pancakes
Omelets
Scrambled Eggs
8
2.
3
7
12
1
4
Waffles
Which food combinations could Mrs. Solis make without needing a second box of eggs? Choose the THREE correct answers.
A
Pancakes and Waffles
B
Pancakes and Egg Salad
С
Omelets and Egg Salad
D
Waffles and Egg Salad
F
Scrambled Eggs and Omelets

Answers

Answer:

C

Step-by-step explanation:

what is the number 21.0384 rounded to the nearest hundredth?

Answers

Answer:

21.04

Step-by-step explanation:

the 8 is closest to 10 so that would make the 3 a 4.

PLEASE HELP I WILL MARK BRAINLIST!!

Answers

Answer:

umm whats the question-

help you in what man?

there is no question

Plz help this is 400 points. Nancy bought a Reuben sandwich and received her change in several coins. The cashier handed Nancy 2 half dollars, 3 quarters, 4 dimes, 4 nickels, and 1 penny. How much money did Nancy get in change?

Answers

Answer:

2.35

Step-by-step explanation:

2x50=100

3x25=75

4x10=40

4x5=20

100+75+40+20=2.35

Which of the following is a statistical question? A. How many girls named Jennifer are there in the class? B. What is the age of students in Ron's school? C. How many artifacts are there in the museum? D. What is the capital of Texas?

Answers

Answer:

bbbb

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

It may vary

I need help with this pls its a grade

Answers

Answer:

1.63

2.300

3.96

4.180

5.186.2

6.194.4

Step-by-step explanation:

Cole is 6 years older than Ryan. The sum of their ages is 84. How old is Cole

Answers

Answer:

It will be 78

Step-by-step explanation:

Because if you do 84 minus 6 you get 78

Help... need it right now ;-;

Answers

Answer:

1

Step-by-step explanation:

|3 + 2 - 6| = |5 - 6| = |-1| = 1

Answer:

1

Step-by-step explanation:

Hello There!

For this one, like the other one, all we have to do is plug in the values

so

l 3 - (-2) + (-6) l

3 - (-2)

the two negative signs cancels out so now its

3+2 which is equal to 5

5-6=-1

l-1l remember l l means absolute value and the absolute value of -1 is 1 so the answer is 1

15 less than 3 times a number is 5 more than half of the number.

Answers

Answer:

Mystery Number is 8

Step-by-step explanation:

3x - 15 = 5 + 1/2x

3x - 1/2x = 15 + 5

5/2x = 20

x = 20 / 5/2

x = 20 * 2/5

x = 40 / 5

x = 8

50 points help me please

Answers

3•3/6 = 9/6 = 3/2

Simplified Improper Fraction: 3/2
Mixed Number: 1 1/2

what is the negation of "x>3"?
a)=3
b.)_<3
c.)<3​

Answers

Given:

The inequality is:

[tex]x>3[/tex]

To find:

The negation of the given inequality.

Solution:

The given inequality is [tex]x>3[/tex], it means all the value which are greater than 3 are included in the solution set.

Since all the values which are less than or equal 3 are not included in the solution set, therefore the negation of the given inequality is

[tex]x\leq 3[/tex]

Therefore, the negation of [tex]x>3[/tex] is [tex]x\leq 3[/tex].

Note: Option are not in proper format.

factor g(x) =6x^3 +13x^2 -2x -1 if (2x + 3) is a factor.​

Answers

Here’s what I got hope it helps

o 12h + h +17-5
Help and please

Answers

pretty sure it’s 13h+12

(10k0)(7k–1)(6k–4)
^ k to the 0 power

Answers

Answer:

1

Step-by-step explanation:

every single thing to the power of 0 is 1

Answer:

0

Step-by-step explanation:

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