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15 pts D Question 7 Random sample of college students were asked how many hours they spent studying per day. The results summ
Step 2 Expected Less than 3 3 or more (round to 1 decimal place if necessary) Males Females (0-E) E (round to 2 decimal place
Is the criteria for normality met? (fill in the blank with the correct response: yes or no) Step 3 Test statistic x? (round t
0 0
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Answer #1

Ans Step 1 )Ho: sex and the amount of time spent studying are independent.

Ha: sex and the amount of time spent studying are dependent.

Step 2 )

age
Expected Frequencies Less than 3 more than 3
Males 28.6 71.4
Females 19.4 48.6
age
(O-E)^2 /E Less than 3 more than 3
Males 1.93 0.77
Females 2.84 1.14

yes the criteria met .

Step 3:the value of chi square is 6.68

degree of freedom = 1

p value = 0.010

step 4:thgere is enough evidence to conclude that sex and the amount of time spent studying are dependent.

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