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
notsponge [240]
4 years ago
15

A sample of 6 observations collected in a regression study on two variables, x(independent variable) and y(dependent variable).

The sample resulted in the following data.SSR=60, SST=89, summation (x_i-xbar)2=28, summation (x_i-xbar)(y_i-ybar)=45.Calculate the t test statistics to determine whether a statistically linear relationship exists between x and y.
Mathematics
1 answer:
mojhsa [17]4 years ago
5 0

Answer:

The  t test statistics = 6.1357

Step-by-step explanation:

Given that:

sample (n) = 6

r = \sqrt{\frac{SSR}{SST} }

r = \sqrt{\frac{60}{89} }

r = 0.821

Therefore; the t test statistic can be calculated as :

t = r* (\frac{\sqrt{n - 2} }{1 - r^2} ) \\ \\ t = 0.821 * (\frac{\sqrt{6 - 2} }{1 - 0.821^2} )\\\\ t = 0.821 * (\frac{\sqrt{4} }{1 - 0.674041} ) \\ \\ t = (\frac{\sqrt{4} }{0.325959})\\ \\ t = (\frac{ 2 }{0.325959}) \\  \\ t = 6.1357

You might be interested in
Jeremiah always rides his bike to and from work the total length of the trip to and from work is 14.6 kilometers last month Jere
dezoksy [38]

Answer:

As per the given statement: Jeremiah always rides his bike to and from work the total length of the trip to and from work is 14.6 kilometers last month.

⇒\text{Total length of the trip to and fro from work last month} = 14.6 km

Also, it is given that Jeremiah worked 18 days.

then;

\text{Total distance he ride his bike} = 14.6 \times 18 = \frac{146}{10} \times 18 = \frac{146 \times 18}{10} = \frac{2628}{10}

Simplify:

\text{Total distance he ride his bike} = 262.8 km

Therefore, 262.8 km did he rode his bike to and from work last month

8 0
4 years ago
PLEASE HELP ASAP!!!!! WILL GIVE BRAINLIEST TO FIRST CORRECT ANSWER!!!!!
Montano1993 [528]
Plugging the values if x and y the last option is correct 
3x-y=4

7 0
4 years ago
Investing in bonds! PLS HELP
ozzi
1) A zero coupon bond is a bad choice for Ralph because it is a bond bought at a very deep discount but does not earn any interest. He will only get the face value of the bond when it matures.

2) Defaulting means being unable to pay for the debt in time. They will pay for the debt when they have the available funds to do so. Allison will just have to wait until the Greek government has enough money to cover their debts.



3 0
3 years ago
PLZ HELP!! I NEED QUICKLY!!
djverab [1.8K]

Answer:

no worries about the other day and I had literally forgotten about the other night and was just so I could tell me how I felt and I had a flat rate that you and I had a

5 0
3 years ago
Read 2 more answers
Substitute x with 2.
Marina CMI [18]

Answer: -5


Step-by-step explanation:

13-4(2) / 2(2)^2-7(2)+5

5 / -1



7 0
3 years ago
Other questions:
  • Angie got some money for his birthday. He spent 1/5 of it on dog treats for his puppy. Then he divided the remainder equally amo
    15·1 answer
  • Which statement is true?
    11·1 answer
  • Can someone help me not sure how to do it
    11·2 answers
  • Write a whole number and a fraction greater than 1 to name the part filled. Think: 1 container = 1
    15·1 answer
  • If 560 mg is 80% of a dose of medicine, how much is a full dose?
    15·1 answer
  • Please Help , Show Work Thanks
    10·1 answer
  • She has 40 coins all made up of quarters and dimes, And when she counted them up she had $7.75 from them, how much of each did s
    9·1 answer
  • Question
    7·1 answer
  • What is the sum of 8 and x
    13·1 answer
  • Guys please i need help on this, i will give brainliest to the right answers
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!