6of15(0complete) This Quiz: 15 pts possible This Question: 1 pt Question Help A

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6of15(0complete) This Quiz: 15 pts possible This Question: 1 pt Question Help A 2003 study of dreaming found that out of a random sample of 117 people, 88 reported dreaming in color. Howover, the rate of reported dreaming in color that was estalblished in the 1940s was 0.25. Check to soe whether the condiions for using a one-proportion z-test are met assuming the rosearcher wanted to test to see if the proportion dreaming in color had changed since the 1940s Are the conditions mel? O A No, the population is not more than 10 tmes bigger than the sample size. B. You, ane aondions are met O C. No, the sample size is not large enough to produce at least 10 successes and 10 failures D. No, un observations are not independent. MacBook Pro 882 . aw cmd × cmd

Explanation / Answer

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1)

n = 117

x = 88

p = 88/117 = 0.75

Conditions:

n * p > 5

Here,

117 * 0.75 = approx 88 > 5

and n * q = 117 * 0.25 = approx = 29 > 5

So, both conditions are satisfied.

B option

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