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Agata [3.3K]
3 years ago
10

PLEASE HELP! By visual inspection, determine the best-fitting regression model for the data plot below.

Mathematics
2 answers:
Fed [463]3 years ago
8 0

A. Quadratic is right for apex

OLEGan [10]3 years ago
6 0
The first thing you should do is observe the behavior of the graph.
 It is not linear because the rate of change is not constant.
 It is not exponential because the rate of change does not grow or decrease rapidly.
 For this case the best regression model is a model of the form:
 y = ax ^ 2 + bx + c

 Where,
 a <0: This is because we have a parabola that opens downwards.
 Therefore, the best regression model is quadratic.
 Answer:
 
By visual inspection, the best-fitting regression model for the data plot is:
 
A. Quadratic
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Answer:

Option B)

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

The doctors and u=instructor claims that practicing yoga reduces blood pressure and hence is beneficial to people.

Population mean, μ =  140 mm

Sample mean, \bar{x} =  139 mm

Sample size, n = 51

Sample standard deviation, s = 5 mm

Thus, we can design the null hypothesis and alternate hypothesis as

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

The null hypothesis states that the population have a blood pressure of 140 mm. The alternate hypothesis states that yoga reduces the blood pressure and the sample has a blood pressure less than 140 mm.

Thus, the correct answer is

Option B)

H_{0}: \mu = 140\text{ mm}\\H_A: \mu < 140\text{ mm}

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3 years ago
Fatima wants you to show her some numbers other than pie that are real but not rational what would you show her?
EastWind [94]
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It might be wrong but I wanted to try it so don’t you my answer.

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Please help me have to turn it in 30 minutes.
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