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
Nostrana [21]
3 years ago
6

The table below gives the list price and the number of bids received for five randomly selected items sold through online auctio

ns. Using this data, consider the equation of the regression line, yˆ=b0+b1x for predicting the number of bids an item will receive based on the list price. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression line to make a prediction if the correlation coefficient is not statistically significant.
col1 Price in Dollars 23 24 32 37 49
col2 Number of Bids 1 2 6 9 10
Step 2 of 6: Find the estimated y-intercept =-0.488

Step 3 of 6: Determine the value of the dependent variable yˆ at x=0 is = -0.488

Step 4 of 6: Determine if the statement "Not all points predicted by the linear model fall on the same line" is False

Step 5 of 6: Substitute the values you found in steps 1 and 2 into the equation for the regression line to find the estimated linear model. According to this model, if the value of the independent variable is increased by one unit, then find the change in the dependent variable =0.290

Step 6 of 6: Find the value of the coefficient of determination =0.928

Mathematics
1 answer:
lutik1710 [3]3 years ago
6 0

Answer:

Step-by-step explanation: see attachment below

You might be interested in
A cell site is a site where electronic communications equipment is placed in a cellular network for the use of mobile phones. Th
Olegator [25]

Answer:

(a) 74553

(b) 172120

(c) 234802

Step-by-step explanation:

Given

y = \frac{340110}{1 + 377e^{-0.259t}}

Solving (a): 1998

Year 1998 means that:

t =1998 -  1980

t =18

So, we have:

y = \frac{340110}{1 + 377e^{-0.259*18}}

y = \frac{340110}{1 + 377e^{-4.662}}

y = \frac{340110}{1 + 3.562}

y = \frac{340110}{4.562}

y = 74553 --- approximated

Solving (b): 2003

Year 2003 means that:

t = 2003 -  1980

t =23

So, we have:

y = \frac{340110}{1 + 377e^{-0.259*23}}

y = \frac{340110}{1 + 377e^{-5.957}}

y = \frac{340110}{1 + 0.976}

y = \frac{340110}{1.976}

y = 172120 --- approximated

Solving (c): 2006

Year 2006 means that:

t = 2006 -  1980

t =26

So, we have:

y = \frac{340110}{1 + 377e^{-0.259*26}}

y = \frac{340110}{1 + 377e^{-6.734}}

y = \frac{340110}{1 + 0.4485}

y = \frac{340110}{1.4485}

y = 234802 --- approximated

3 0
2 years ago
A chemist needs to mix a 40% hydrochloric acid with a 70% hydrochloric acid to create a 20 oz mixture that is 55% hydrochloric a
nikdorinn [45]

Answer:

y=10

Step-by-step explanation:

5 0
3 years ago
What is the true solution to the logarithmic equation below?<br> log₂ (6x)-log₂ (√x)=2
slega [8]

Answer:

The true solution is x=4/9

EXPLANATION

The logarithmic equation given to us is

We need to use the quotient rule of logarithms.

When we apply this law the expression becomes

We now take the antilogarithm of both sides to get

We square both sides to get,

We evaluate to obtain,

This simplifies to

We divide both sides by 36 to get

We simplify to get,

6 0
2 years ago
Read 2 more answers
8 fluid ounces time 1 quart​
myrzilka [38]

Answer:

0.25

Step-by-step explanation:

If one quart equals 32 ounces, then we multiply the volume by 32  

4 0
3 years ago
What is the result of subtracting the second equation from the first?<br><br>−4x−2y=-2<br><br>x−2y=9
FrozenT [24]
The end result would be ( 11/5 , -15/5)
8 0
3 years ago
Other questions:
  • Henry has 15 lawns mowed out of 60 lawns. What percent of the lawns does Henry still have to mow?
    10·1 answer
  • Explain, using complete sentences, how someone might snowball their debt according to the balance.
    7·2 answers
  • What is the conjugate of 5 - 4i?
    12·1 answer
  • How is 0.025¯¯¯¯ written as a fraction in simplest form?
    12·1 answer
  • A friend says that sweepstakes tickets will either win or not win so that Theoretical probability of it when he must be 50% expl
    5·1 answer
  • Consider the inequality -5(x+7) &lt;-10. write an inequalityrepresenting the soulution for x.
    6·1 answer
  • 1. What is the square root of 225?*<br> o<br> 15<br> 12<br> 112.5<br> 450
    11·2 answers
  • Find the midpoint of the line segment with endpoints p1 (5/3,5/12) and p2 (-1/3,7/12)​
    7·1 answer
  • What is the volume of a cube with surface area A m2?
    13·1 answer
  • -Solve for b <br> 3b-5&gt;-8 or b-4≤0
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!