answer.
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
Bas_tet [7]
2 years ago
15

In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the following estimated reg

ression equation was developed. Ŷ = 10 - 18x1 + 3x2 + 14x3 Also, the following standard errors and the sum of squares were obtained. sb1 = 3 sb2 = 6 sb3= 7 SST = 4800 SSE = 1296 At the 5% level, the coefficient of x2 a. is not found to be significant. b. is significant. c. cannot be tested, because not enough information is provided. d. should be estimated again, because it is incorrect in the above equation
Mathematics
1 answer:
Gekata [30.6K]2 years ago
3 0

Answer:

a. is not found to be significant.

Step-by-step explanation:

Regression analysis is a statistical technique which is used for forecasting. It determines the relationship between two variables. It determines the relationship of two or more dependent and independent variables. It is widely used in stats to find trend in the data. It helps to predict the values of dependent and independent variables. In the given question, there are 25 observations and the regression equation is given. X and Y are considered as dependent variables.

You might be interested in
Triangle A B C is reflected across line m to form triangle A prime B prime C prime. Triangle A prime B prime C prime is rotated
Helga [31]

Answer:

  1. reflection across line m
  2. rotation about point A'

Step-by-step explanation:

The problem statement tells you exactly what the transformations are.

The first transformation is reflection across line m.

The second transformation is rotation about point A'.

_____

These are both rigid transformations, so ΔABC ≅ A'B''C''.

6 0
2 years ago
Find the inverse of y=x2-10x
anzhelika [568]
<span>this is pretty hard but here is your answer 
</span>

y = x^2 - 10x + 25 - 25

<span> y = (x-5)^2 - 25 </span>

<span> y+25 = (x-5)^2 </span>

<span> x-5 = +/-sqrt(y+25) </span>

 

<span> And you get TWO inverses: </span>

 

<span> x = 5 + sqrt(y+25), for x>=5 </span>

<span> x = 5 - sqrt(y+25), for x<=5</span>


5 0
2 years ago
Read 2 more answers
Your drawer has 5 pairs of black socks, 4 pairs of gray socks, 2 pairs of white socks, 1 pair of brown socks, and 1 pair of blue
Sergeeva-Olga [200]
5 pairs of black socks*2 because it’s a pair= 10 socks
4 pairs of grey socks*2=8
2 pairs of white socks*2=4
1 pair of brown socks*2=2
1 pair of blue socks*2=2
10 socks+8 socks+4 socks+2 socks+ 2 socks=26 socks in total
26/2=13+1 because you need to be sure you get one pair of socks. The smallest amount of socks you would have to grab to get at least one matching pair is 14 socks.
7 0
2 years ago
Which graph represents the inequality?<br><br> 18x−3y&lt;−21
ozzi
I'm going to go with C.
The inequality isn't greater than OR EQUAL TO which marks out B and D.
The inequality is showing that it is greater than -21 meaning that the shaded area should be towards the positive which in turn marks out A.
6 0
2 years ago
Read 2 more answers
What is 2 divided 1 6/7 ? Please answer
Aliun [14]
If you would like to divide 2 by 1 6/7, you can do this using the following steps:

1 6/7 = 13/7

2 / 1 6/7 = 2 / 13/7 = 2/1 / 13/7 = 2/1 * 7/13 = 14/13 = 1 1/13

The correct result would be 1 1/13.
6 0
2 years ago
Other questions:
  • An artist wants to make alabaster pyramids using a block of alabaster with a volume of 576 cubic inches. She plans to make each
    5·2 answers
  • The transportation department has to put a railing along the outer curve of this road. The road is 20 feet wide. What is the len
    10·2 answers
  • valerie is ordering salads and drinks for her friends. salads cost $7 each, drinks cost $3 each, and there is a $5 delivery char
    15·1 answer
  • Which number can each term of the equation be multiplied by to eliminate the fractions before solving? -3/4m-1/2=2+1/5m
    13·1 answer
  • Jeanne wants to start collecting coins and orders a coin collection starter kit. The kit comes with three coins chosen at random
    14·1 answer
  • John had a roll containing 24 2/3 feet of wrapping paper. He wants to divide it into 11 pieces. First, though, he must cut off 5
    9·2 answers
  • If you apply the changes below to the quadratic parent function, f(x) = x2, what is the equation of the new function? Shift 3 un
    7·1 answer
  • Kenny is ordering uniforms for both the girls and the boys tennis clubs. He is ordering shirts for 43 players and 2 coaches at a
    13·2 answers
  • Which statement correctly describes the slope of the linear function that is represented by the data in the table? x y 8 –8 8 –4
    13·2 answers
  • Write the simplest form of the expression (64/729)^(−1/6)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!