uestion 3 (1 point) A random group of seniors was selected from a university and

Question

uestion 3 (1 point) A random group of seniors was selected from a university and asked about their plans for the following year. The school advis office claims that 55% of the students plan to work, 25% of the students plan to continue in school, and 20% of the students to take some time off. Is there evidence to reject this hypothesis at ?-0.057 Plans Work School Time off Number of students 21 15 10 Critical value- ab o(answer to 2 decimal places) 5.99 Test value 1.50 Do you reject the claim (yes/no) (answer to 2 decimal places) no Save Question 4 (1 point) A random group of desktop computer sales was selected from an electronic discount chain to analyze the size of monitor purchased with the computer. Is there evidence to reject the hypothesis that the number of monitors is equally distributed between the five types, at t-o.057 Critical value 9.49 abs (answer to 2 decimal places) ebs (answer to 2 derimat nlacml Test value 10.19

Explanation / Answer

Question 3

Here the chi-square table with expected and observed values.

Here critical value = X22,0.05 = 5.99

Test value = 1.87

Yes we fail to reject the claim here.

Question 4

Here dF = 5-1

X2critical = 9.49

Plans Observed Expected Chi-Square Work 21 25.3 0.7308 School 15 11.5 1.0652 Time off 10 9.2 0.0696 Sum 46 46 1.8656

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