Question

A nutrition study investigated knowledge about fruit juices. The study was conducted in a pediatric clinic. Accompanying parents were asked to classify a national brand of “fruit drink”, that contains less than 10% fruit juice, as 100% fruit juice, fruit juice mix, or no fruit juice at all. The investigators asked 150 parents. The table contains the results. Juice Content Gender Female Gender Male Total 100% 15 15 30 1%‑99% 55 25 80 0% 30 10 40 100 50 150 The P‑value for the test for independence is p=0.0759. This test is significant at α=0.10. To examine the source of the departure from independence, we should: compare expected and observed counts. compare selected proportions of female and male answers. All of the answer options are correct.

          A nutrition study investigated knowledge about fruit juices. The
study was conducted in a pediatric clinic. Accompanying parents
were asked to classify a national brand of “fruit drink”, that
contains less than 10% fruit juice, as 100% fruit juice, fruit
juice mix, or no fruit juice at all. The investigators asked 150
parents. The table contains the results.
Juice
Content
Gender
Female
Gender
Male
 Total 
100%
15
15
30
1%‑99%
55
25
80
0%
30
10
40
100
50
150
The P‑value for the test for independence
is p=0.0759. This test is significant at α=0.10. To
examine the source of the departure from independence, we
should:
compare expected and observed counts.
compare selected proportions of female and male answers.
All of the answer options are correct.

Added by Victor Manuel W.

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