In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6983subjects randomly selected from an online group involved with ears. There were 1315 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution.Identify the null hypothesis and alternative hypothesis. A.H0:p=0.2H1:p>0.2 B.H0:p>0.2H1:p=0.2 C.H0:p=0.2H1:p≠0.2 D.H0:p=0.2H1:p<0.2 E.H0:p<0.2H1:p=0.2 F.H0:p≠0.2H1:p=0.2 The test statistic isz=.(Round to two decimal places as needed.) The P-value is.(Round to three decimal places as needed.) Because the P-value is▼Less than,greater than the significance level,▼ rejectfail to reject the null hypothesis. There is▼ sufficientinsufficient evidence to support the claim that the return rate is less than 20%.

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Description: In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6983subjects randomly selected from an online group involved with ears. There were 1315 surveys returned. Use a 0.01 significance level to test the c

Given n = 6983 x = 1315 (a) Hypothesis : H0 : p=0.20H1 : p<0.20 Also p^ =xn = 13156983 =…

Answered: In a study of cell phone usage and…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6983subjects randomly selected from an online group involved with ears. There were 1315 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution.

Identify the null hypothesis and alternative hypothesis.

H0:

p=0.2

H1:

p>0.2

H0:

p>0.2

H1:

p=0.2

H0:

p=0.2

H1:

p≠0.2

H0:

p=0.2

H1:

p<0.2

H0:

p<0.2

H1:

p=0.2

H0:

p≠0.2

H1:

p=0.2

The test statistic is

z=.

(Round to two decimal places as needed.)

The P-value is

(Round to three decimal places as needed.)

Because the P-value is

▼

Less than,

greater than

the significance level,

▼

reject

fail to reject

the null hypothesis. There is

▼

sufficient

insufficient

evidence to support the claim that the return rate is less than 20%.

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