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polet [3.4K]
3 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]3 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  

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How many times greater is 36 than 33
masya89 [10]

Answer:

1 1/11 times greater

Step-by-step explanation:

When we are looking for how man time greater, we know we have to divide

36/33

Each number can be divided by 3

12/11

We can change this to a mixed number

1 1/11 times greater

6 0
2 years ago
Which measure of center is the most appropriate for the data in Table 2 (Weight)? Give a reason for your answer.
AleksandrR [38]
Mean because all of the data points are
fairly close and there aren't any outliers
(extreme values)
5 0
2 years ago
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If Cheri walked 12 blocks in 36 minutes, what was Cheri's speed per minute?
mestny [16]
She walked 3 Miles Per Hour each minute
3 0
3 years ago
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How far, D, does a vehicle travel if it is moving at a rate, r, of 60 km/h and it travels for t =150 minutes? Use the formula D=
strojnjashka [21]

The distance of a vehicle travel is 150 km, at a moving rate of 60 km/h for 150 minutes.

Step-by-step explanation:

            The given is,

                   Moving rate, r = 60 km/h

                   Time, t = 150 minutes

Step:1

            We need to find the distance traveled by the vehicle,

            From given the formula is

                        D = rt

            Where,

                D = Distance in Km

                 r = Moving rate in Km/h

                 t = Time in hours

Step:2

         We need to convert the time minutes to hours

                   t = \frac{150}{60} hours

                   t = 2.5 hours

Step:3

        Distance traveled by the vehicle is,

                D = 60 × 2.5

                    = 150

                D = 150 Km

Result:

      The distance traveled by the vehicle is 150 Km at a moving rate of 60 km/h for 150 minutes.

5 0
3 years ago
an experiment is done to see the health effect of large amounts of asprin on rats. each rat gets 22 grams of asprin. if 60 rats
tensa zangetsu [6.8K]
Just multiply 60 × 22 (since each single rat needs 22 grams of aspirin)

60 × 22 = <u><em>1320 grams total</em></u>
7 0
3 years ago
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