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Sergio039 [100]
3 years ago
6

Identify where f is increasing and where f is decreasing. f(x) = |x+3|

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0

Answer:

increasing on: (-3, infinity symbol)

decreasing on: (- infinity symbol, -3)  

Step-by-step explanation:

as much as I would like to, I'm really not that great when it comes to explaining things

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where p_0 is the proportion assumed under the null hypothesis, \hat p is the measured proportion, and n is the sample size. You have p_0=0.25, \hat p=\dfrac{171}{171+409}\approx0.29, and n=409+171=580, so the test statistic is

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So the conclusion for this test is that the sample proportion is indeed statistically significantly different from the proportion suggested by the null hypothesis.
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