A random sample of 20 married persons found that they spend on average 2.27 hours a day on their phone, with a standard deviation of 0.52. A random sample of 25 single persons found that they spend on average 2.82 hours per day on their phone, with a standard deviation of 0.52. Test to see if single people spend significantly more time on their phones than married people do. Test the claim using a 5% level of significance. Assume the population standard deviations are unequal and the populations are normally distributed. Use Group 1 = Married, Group 2 = Unmarried. Give answer to 4 decimal places. 1. What are the correct hypotheses? H0:                             H1:                             2. Based on the hypotheses, find the following:  T-Test Statistic =  p-value =    3. The correct decision is to        . The correct summary would be:       that single people spend significantly more time on their phones than married people.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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A random sample of 20 married persons found that they spend on average 2.27 hours a day on their phone, with a standard deviation of 0.52. A random sample of 25 single persons found that they spend on average 2.82 hours per day on their phone, with a standard deviation of 0.52. Test to see if single people spend significantly more time on their phones than married people do. Test the claim using a 5% level of significance. Assume the population standard deviations are unequal and the populations are normally distributed. Use Group 1 = Married, Group 2 = Unmarried. Give answer to 4 decimal places.

1. What are the correct hypotheses?

H0:                            

H1:                            


2. Based on the hypotheses, find the following: 

T-Test Statistic = 

p-value =   

3. The correct decision is to        .

The correct summary would be:       that single people spend significantly more time on their phones than married people.

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