nts possible. 1. Total an atempts 1 ou are conducting a test of independence for
ID: 3323008 • Letter: N
Question
nts possible. 1. Total an atempts 1 ou are conducting a test of independence for the claim that there is an assncia between the row variable and the column variable A 35 256 B 35 35 23 The expected observations for this table would he 6 What is the chi-square test-statistic for this data? Report all answers accurate to three decimal places 06 Points possible: 1, Total attempts: 1 In which situation is a contingency table most likely to be useful? A farmer claims that 95% of his watermelons ship ripe and ready to eat. If they ship in crates of 22, what is the probability all 22 watermelons in a crate will be ripe and ready to eat? 6 dice are rolled and we are interested in the probability of the sum being 7 You have socks of different colors and different lengths in a drawer. You randomly grab a pair in the dark and are interested in the probabilities of getting different types of socks. 209 students are asked whether they intend to stay at the college they currently attend or transfer. Of interest is the proportion of students who intend to transfer.Explanation / Answer
Using Minitab:
Chi-Square Test: X, Y, Z
Expected counts are printed below observed counts
Chi-Square contributions are printed below expected counts
X Y Z Total
A 35 25 46 106
37.29 31.96 36.75..................Expected Count
0.140 1.516 2.326
B 35 35 23 93
32.71 28.04 32.25..................Expected count
0.160 1.727 2.651
Total 70 60 69 199
Chi-Sq = 8.520, DF = 2, P-Value = 0.014
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