Consider this conclusion based on a study of shoppers\' preferences: \"In a rece
ID: 2957576 • Letter: C
Question
Consider this conclusion based on a study of shoppers' preferences: "In a recent survey, 126 out of 200 consumers reported that they preferred plastic bags instead of paper bags for their groceries. If preference for paper versus plastic is split 50/50 in the population, the chance of such extreme results in a sample of this size is about 0.0002. Because this is less than 0.05, we can conclude that there is a statistically significant difference in preference." Give a numerical value for each of the following.(a) The p-value.
____________________
(b) The level of significance, a.
____________________
(c) The sample proportion. Round your answer to 2 decimal places
____________________
(d) The sample size.
____________________
(e) The null value.
____________________
Explanation / Answer
(a) p-value = .0002
(b) alpha = .05
(c) p = 126/200 = 0.63
(d) n = 200
(e) p0 = .5
These are all straight-forward without any need for calculations. If you need further explanation, just let me know.