z-value, Mathematics

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A study was conducted to determine the proportion of people who dream in black and white instead of color. Among
317317
people over the age of? 55,
7777
dream in black and? white, and among
287287
people under the age of? 25,
1919
dream in black and white. Use a
0.010.01
significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25.

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