Question
A charity claims that a proportion of 0.75 of donations go to communities where the average family income is less than $20,000 a year. A
A charity claims that a proportion of 0.75 of donations go to communities where the average family income is less than $20,000 a year. A watchdog group checks a random sample of 60 communities that received funds from the charity to determine if the proportion is different than 0.75 at a significance level of 0.05.
p^=
z=
p=
Since the p-value is (less or greater?) than the significance level 0.05, the null hypothesis (is rejected or is failed to be rejected?)
(Sufficient or insufficient?) evidence exists that the proportion of donations to communities with an average family income of less than $20,000 a year is different from 0.75.
Chart:
17584.20282 |
20700.83433 |
15840.71155 |
16582.83677 |
19151.04829 |
18769.34388 |
25975.45618 |
19717.24232 |
20165.07319 |
23717.82542 |
24226.15385 |
25452.56357 |
15287.00064 |
9655.356048 |
18748.00068 |
17440.11971 |
14738.10126 |
10834.10709 |
22579.52051 |
19795.33254 |
15218.17875 |
18723.75744 |
16303.30788 |
25016.3278 |
18354.1869 |
16888.94726 |
24042.37265 |
16909.69641 |
13574.29632 |
13835.85623 |
15047.01766 |
11995.34926 |
24841.88324 |
10384.64987 |
30794.8288 |
16525.35127 |
28853.54638 |
767.0667831 |
20227.75922 |
16507.4752 |
26571.49419 |
16124.97647 |
15266.13576 |
16311.45542 |
16525.70333 |
18756.37337 |
25839.33556 |
22158.03707 |
16326.4273 |
13462.19691 |
9560.257377 |
10232.22053 |
22882.95679 |
12376.45263 |
19721.00503 |
21717.36036 |
19565.98856 |
20420.14764 |
23226.88764 |
18434.88874 |
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