1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Masja [62]
3 years ago
11

HELP ME PLEASE! HALF-DONE ANSWERS WILL BE DELETED! 15 POINTS!

Mathematics
2 answers:
bixtya [17]3 years ago
7 0

Answer:

G: The residual plot given displays the linear model from the regression calculator as being a good model for it represets the points and how the linear model compared to the residual model calculates to a similar, if not same result.

Based on the equation we did for 2d:

\frac{predicted value}{measured value} = residual

9.2-2.23=6.97\\19.5-3.77=15.73\\15.5-3.92=11.58\\0.7-1.11=-1.04\\21.9-3.60=18.3\\13.8-1.42=12.38

H: We can interpret the average or close accurate of a student that studies for 15 hours a week to be around 3.92 based on previous findings. Along with that, the scatterplot should be different by the first set of differences that was subtracted.

When plotting the new points, be sure to make them a seperate color of shape (depending on how creative you wish to be) so you can tell the two apart form one another.

Hope this Helps!

Leni [432]3 years ago
6 0

Answer:

G) Yes, because the plots and the linear model both align to produce a similar calculated sum.

H) I need to see the data table again for step 2d.

Step-by-step explanation:

1.) You scatter plot should be off by 6.97, since that was the first difference in your data table set of terms.

Basically subtract all of the GPAs from the Hours in the table.

Ex). Hours - GPA = Difference

or like before,

      9.2 - 2.23 = 6.97

Do the rest of the numbers like this then plot the answers.  I'd advise you plot your second set of scatter plot points in a different color.

You might be interested in
Solve the system of equation with substitution. y=4x+8 y=2x-9
Firlakuza [10]
I actually just learned this. I think this is the right answer.

8 0
3 years ago
I believe the answer is d is this correct?
JulijaS [17]

Answer:

yes it is correct

Step-by-step explanation:

3 0
3 years ago
A researcher compares the effectiveness of two different instructional methods for teaching electronics. A sample of 138 student
yan [13]

Answer:

The 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the difference between population means is:

CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}

The information provided is as follows:

n_{1}= 138\\n_{2}=156\\\bar x_{1}=61\\\bar x_{2}=64.6\\\sigma_{1}=18.53\\\sigma_{2}=13.43

The critical value of <em>z</em> for 98% confidence level is,

z_{\alpha/2}=z_{0.02/2}=2.326

Compute the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 as follows:

CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}

     =(61-64.6)\pm 2.326\times\sqrt{\frac{(18.53)^{2}}{138}+\frac{(13.43)^{2}}{156}}\\\\=-3.6\pm 4.4404\\\\=(-8.0404, 0.8404)\\\\\approx (-8.04, 0.84)

Thus, the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).

5 0
3 years ago
PLEASE HELP ME FIGURE THIS OUT 1......
MA_775_DIABLO [31]
  • Make sure your calculator is in "Deg" <em>(degrees)</em>.
  • Input "32"
  • Click on the "sin" button.  

Answer: 0.5514

*********************************************************************

Answer: tan θ

<u>Step-by-step explanation:</u>

  cotθ * sin²θ * sec²θ

= \frac{cos}{sin} * \frac{sin*sin}{1} * \frac{1}{cos*cos} = \frac{sin}{cos} = tan

8 0
3 years ago
The solution is (7,7)
Georgia [21]
B is the answer I chose but there are the steps so you can see how to solve it

8 0
2 years ago
Other questions:
  • In the product of 3.64 and 0.5, there should be _____ digits to the right of the decimal point.
    12·2 answers
  • What does 4/10 simplify to?
    13·2 answers
  • Solve for x, round answer to nearest thousandth<br><br> 22^3x+2=114
    11·1 answer
  • Find the inverse function of g(x) = sqrt x-7
    7·1 answer
  • The equation yˆ=−5.131x 2+31.821x−3.333 approximates the number of people standing in line to catch a commuter train x hours aft
    9·2 answers
  • The equation of a circle is x2+y2+10x−4y−20=0 . What is the radius of the circle?
    12·1 answer
  • Is 944544 divisible by 10
    11·2 answers
  • Please help I’ll give brainlist
    12·2 answers
  • 4.<br> 3<br> 5<br> -1 1<br> -21 0<br> OI0<br> V<br> 4<br> 2<br> y<br> m=를<br> X<br> 9
    9·1 answer
  • A circle is centered at (−3, 2) and has a radius of 2. Which of the following is the equation for this circle?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!