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
polet [3.4K]
2 years ago
11

Movie executives want to know if a movie watcher’s heart rate increases when they watch certain types of movies. Subjects in t

he experiment were given a free movie ticket and randomly assigned to watch one of four movies: an action-adventure film, a horror film, a romantic comedy, or an animated children’s film. They measured the average heart rate of all subjects while watching the assigned film.
Which of the following is the most appropriate statistical test to use to test if the average heart rate of the movie watchers was different for the four types of movies?

A. Matched pairs t-test

B. Chi-squared test for independence

C. ANOVA

D. Two-sample t-test

E. Inference for regression
Mathematics
1 answer:
Sedbober [7]2 years ago
5 0

Answer:

The correct option is C

Step-by-step explanation:

ANOVA is the correct option because it can be used to carry out comparison of average of more than  two groups  

You might be interested in
1) Solve quadratic equations by factoring.<br> 2x^2 + 5x - 12 = 0
Hoochie [10]
(2x-3)(x+4) —> x= 3/2 x= -4
3 0
2 years ago
Read 2 more answers
D. Calculate the volume of Laurel's new box. Show your thinking clearly.
bezimeni [28]
The correct answer is 336 cubic inches.
6•8•5=240
9-5=4
4•6/2=12
12•8=96
240+96=336
6 0
3 years ago
4/15:8<br> 3/7:7/10<br> 3.3/5:4.1/2
posledela
I don't understand what you are trying to ask if you post this in question form or add a question I can probably help you other than that I don't think anyone knows what you need help with, I'm sorry sweety
4 0
3 years ago
Hello, Can someone please explain on how to do this? thank you!
Marrrta [24]
Steps:

1) determine the domain

2) determine the extreme limits of the function

3) determine critical points (where the derivative is zero)

4) determine the intercepts with the axis

5) do a table

6) put the data on a system of coordinates

7) graph: join the points with the best smooth curve

Solution:

1) domain

The logarithmic function is defined for positive real numbers, then you need to state x - 3 > 0

=> x > 3 <-------- domain

2) extreme limits of the function

Limit log (x - 3) when x → ∞ = ∞

Limit log (x - 3) when x → 3+ = - ∞ => the line x = 3 is a vertical asymptote

3) critical points

dy / dx = 0 => 1 / x - 3 which is never true, so there are not critical points (not relative maxima or minima)

4) determine the intercepts with the axis

x-intercept: y = 0 => log (x - 3) = 0 => x - 3 = 1 => x = 4

y-intercept: The function never intercepts the y-axis because x cannot not be 0.

5) do a table

 x                          y = log (x - 3)

limit x → 3+            - ∞

3.000000001        log (3.000000001 -3) = -9

3.0001                  log (3.0001 - 3) = - 4

3.1                       log (3.1 - 3) = - 1

4                          log (4 - 3) = 0

13                       log (13 - 3) = 1

103                     log (103 - 3) = 10

lim x → ∞             ∞

Now, with all that information you can graph the function: put the data on the coordinate system and join the points with a smooth curve.
7 0
3 years ago
Read 2 more answers
Which graph represents the function h(x)=IxI+0.5
Oliga [24]

Answer:

It should look like a v with the origin at +0.5

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • If a 3-pound pizza is sliced in half and each half is
    6·2 answers
  • The actual length of side t is 0.045 cm. Use the scale drawing to find the actual side length of w. A) 0.06 cm B) 0.075 cm C) 0.
    7·2 answers
  • Brandon has some seashells. His brother has half as many seashells. They have 1080 seashells in all. How many seashells does Bra
    6·2 answers
  • Mr. Carter's class is selling raffle tickets for the school fundraiser. They sold 12 tickets and made $36. How much does 1 ticke
    6·2 answers
  • Of the mean, median, and mode, which is (are) affected by outliers?
    6·1 answer
  • Let g(x)=2x and h(x)=x^2+4. Find the value. (gh)(0)
    14·2 answers
  • Please help questions 6 , 7 and 8 50 points
    7·2 answers
  • Rewrite 10x - 5y = -30 in slope-intercept form.<br> somebody help me wit dis
    15·1 answer
  • Does the y axis only contain ordered paris with y coordinates of 0​
    15·2 answers
  • SOMONE HELP ME I HAVE <br> TO DO THIS AFTER SCHOOL PLS ASAP!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!