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
mars1129 [50]
2 years ago
15

You wonder if TV ads are more effective when they are longer or repeated more often or both. So you design an experiment. You pr

epare 30-second and 60-second ads for a camera. Your subjects all watch the same TV program, but you assign them at random to four groups. One group sees the 30-second ad once during the program; another sees it three times; the third group sees the 60-second ad once; and the last group sees the 60-second ad three times. You ask all subjects how likely they are to buy the camera. (a) This is a randomized block design, but not a matched pairs design. (b) This is a matched pairs design. (c) This is a completely randomized design with one explanatory variable (factor). (d) This is a completely randomized design with two explanatory variables (factors). (e) This is a completely randomized design with four explanatory variables (factors).
Mathematics
1 answer:
jok3333 [9.3K]2 years ago
8 0

Answer:

d) This is a completely randomized design with two explanatory variables (factors).

Step-by-step explanation:

Explanatory variables are independent variables.

In this case, I prepared two explanatory variables, which are : (i)30-second ad

(ii) 60-second ad,

Then, the explanatory variables were assigned to 4 treatment groups, and each variable is done once or thrice.

All subjects are assigned randomly to all treatment groups, with each treatment group seeing one. We can conclude that this is a completely randomized design with two explanatory variables.

You might be interested in
At Northwest Highschool, there are 1472 students in the junior class and 1012 students in the senior class. To let the juniors w
Cloud [144]
The awnser would be A
5 0
2 years ago
A- 5.57<br> B- 41<br> C-12<br> D-21.71
Kryger [21]

Answer:

Step-by-step explanation:

If KM bisects angle NKL, the angle 3 is congruent to angle 4.  

We are given that angle 1 is congruent to angle 2, so that means that angle JKP is congruent to angle PKN.  By the definition of an angle bisector, we know then that angle NKM is congruent to angle MKL.  By the definition of a straight angle formed by opposite rays, all those angles named above add up to equal 180 degrees.  So if angle JKN = 8x + 2 and angle MKL = 3x + 5 and angles NKM and MKL are congruent, then angle NKL = 2(3x + 5) which is 6x + 10.  Again, if all those angles above add up to equal 180, then

8x + 2 + 6x + 10 = 180 and

14x + 12 = 180 and

14x = 168 so

x = 12.

Angle MKN = 3x + 5 so if x = 12, then

Angle MKN = 3(12) + 5 and

Angle MKN = 41 degrees

4 0
1 year ago
The amount of money (in dollars) that it costs to purchase x square feet of carpet is given by f(x)=5.6x. The installation fee i
iren [92.7K]

Answer:

the installation fee is $104.40

Step-by-step explanation:

8 0
1 year ago
during the summer winnie delivers flowers and bob babysits for neighbors to show their earnings winnie makes a table which state
miv72 [106K]
  1. Winnie earns $12.30 and Bob earns $24.30.
  2. Bob earns $8.10 and earns$4.10
  3. Winnie earns$12.15 and Bob earns $6.15
  4. Winnie earns $4.05 and Bob earns $2.05

7 0
2 years ago
Read 2 more answers
A manager associated each employee's name with a number on one ball in a container, then drew balls without looking to select a
RUDIKE [14]
Answer: This type of sampling is Simple Random Sampling
7 0
2 years ago
Read 2 more answers
Other questions:
  • Tom has a water tank that holds 5 gallons of water.Tom uses water from a full tank to fill 6 bottles that each hold 16 ounces an
    11·1 answer
  • As an advertising campaign, a chocolate factory places golden tickets in some of its candy bars, with the promise that a golden
    11·1 answer
  • The surface areas of two similar solids are 312 ft2 and 1,198 ft2. The volume of the smaller solid is 239 ft3. What is the volum
    13·2 answers
  • Triangle FGH with vertices F(1,8), G(5,7), and H(2,3) in the line y=x.
    11·2 answers
  • A water well is being drilled in the desert where soil is either rock, clay, or sand. Probability of rock P(R) = 0.42, probabili
    10·2 answers
  • During a game of pool, Raul hit a ball and it followed the path from B to C and
    11·1 answer
  • Mathew rolls a number cube labeled with the numbers 1−6. He then flips a fair coin. What is the probability that he rolls a 4 an
    6·2 answers
  • Buster is a puppy who loves playing inside cardboard boxes. Buster's favorite box is shaped like a big cube and is thirty inches
    5·1 answer
  • Kaitlyn solved the equation for x using the following calculations. Negative 5.4 + x = 12.2. Minus 5.4. x = 6.8. What error, if
    12·1 answer
  • Maggie claims that there are transformations that preserve the length of the rectangle's sides. Which of the following transform
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!