probability question and need the explanation and answer to help me learn.
Hint: reference slides and videos posted
The null hypothesis or H0 : u1-u2 =
[ Select ]
[”
0
“, ”
1
“]
The alternative hypothesis or H1 : u1-u2
[ Select ]
[”
<
", "
>
“, ”
=/
“]
[ Select ]
[”
0
“, ”
1
“]
Decision for F test =
[ Select ]
[”
Reject
“, ”
Fail to reject
“] the null and conclude
[ Select ]
[”
equal
“, ”
unequal
“] variance
pooled variance =
[ Select ]
[”
5351.17
“, ”
5300
“, ”
5878.32
“]
t stat =
[ Select ]
[”
-2.14
“, ”
2.14
“, ”
2.55
“]
t critical value is -1.645
Our final decision is that we
[ Select ]
[”
reject
“, ”
fail to reject
“] and conclude that there
[ Select ]
[”
is
“, ”
is not
“] enough evidence that the performance has improved in SAT scores with the time change.
Hint: reference slides and videos posted
The null hypothesis or H0 : u1-u2 =
[ Select ]
[”
0
“, ”
1
“]
The alternative hypothesis or H1 : u1-u2
[ Select ]
[”
>
“, ”
<
"]
[ Select ]
["
0
", "
1
"]
Decision for F test =
[ Select ]
["
reject
", "
fail to reject
"] the null and conclude
[ Select ]
["
unequal
", "
equal
"] variance
t stat =
[ Select ]
["
-4.53
", "
4.53
", "
4.00
"]
t critical value is 1.65
Our final decision is that we
[ Select ]
["
Fail to reject
", "
reject
"] and conclude that they’re
[ Select ]
["
is not
", "
is
"] enough evidence that the Instagram users have a higher GPA. Hint: reference slides and videos posted
b1 =
[ Select ]
["
0.0582
", "
0.60
"]
b0 =
[ Select ]
["
9.107
", "
10.0
"]
Regression line: y =
[ Select ]
["
9.107
", "
10.0
"]
[ Select ]
["
+
", "
-
"]
[ Select ]
["
0.0582
", "
0.60
"]
Interpretation of b1: For every additional $1000 spent on advertising sales
[ Select ]
["
increase
", "
decrease
"] by
[ Select ]
["
$58.20
", "
$0.58
"]
SSE =18.13
Standard error of estimate =
[ Select ]
["
1.347
", "
1.56
"]
Test whether sales and advertising has some type of linear relationship (2 tail test)
sb1 =
[ Select ]
["
0.0148
", "
0.511
"]
t stat =
[ Select ]
["
3.93
", "
2.11
"]
t critical value is +/- 2.228 (2 tail test)
Our final decision is that we
[ Select ]
["
Reject
", "
Fail to reject
"] and conclude that there
[ Select ]
["
is
", "
is not
"] enough evidence that there is some linear relationship between sales and advertising
95% Confidence level = With 95% confidence B1 is in between
[ Select ]
["
0.0252
", "
0.50
"] and
[ Select ]
["
0.0912
", "
0.52
"] .
R squared:
[ Select ]
["
0.61 or 61%
", "
0.39 or 39%
"] of variation can be explained by advertising the remainder
[ Select ]
["
0.39 or 39%
", "
0.61 or 61%
"] is unexplained.
Requirements: 1 page long
We are a professional custom writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework.
Yes. We have posted over our previous orders to display our experience. Since we have done this question before, we can also do it for you. To make sure we do it perfectly, please fill our Order Form. Filling the order form correctly will assist our team in referencing, specifications and future communication.
1. Click on the “Place order tab at the top menu or “Order Now” icon at the bottom and a new page will appear with an order form to be filled.
2. Fill in your paper’s requirements in the "PAPER INFORMATION" section and click “PRICE CALCULATION” at the bottom to calculate your order price.
3. Fill in your paper’s academic level, deadline and the required number of pages from the drop-down menus.
4. Click “FINAL STEP” to enter your registration details and get an account with us for record keeping and then, click on “PROCEED TO CHECKOUT” at the bottom of the page.
5. From there, the payment sections will show, follow the guided payment process and your order will be available for our writing team to work on it.
Need this assignment or any other paper?
Click here and claim 25% off
Discount code SAVE25