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 ifthe proportion is different than 0.75 at a significance level of 0.05. Use Sheet 8 of the Excel le, which gives the average family incomes for the 60 communities, to calculate 11, the zscore. and the walue. :6 = z = p = Since the pvalue is Pick v than the signicance level 0.05. the null hypothesis Pick v Pick v 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. 22102.35 NP 19230.71 10524.63 15574.56 22955.35 20156.87 14146.1 13934.86 9 18814.42 10 24729.4 11 18099.44 12 18094.57 13 19855.25 14 26227.1 15 10172.86 16 17326.22 17 20742.33 18245.59 19 26793.35 20 18746.47 21 15024.9 22 7850.794 23 21971.78 24 30918.98 25 13486.58 26 16443.13 27 17816.94 28 20501.38 29 13403.94 30 24902.91 31 18534.76 32 13200.08 33 9534.121 34 21173.16 35 24454.8 36 19733.54 37 17896.17 38 17298.67 39 17586.39 40 12622.33 41 15519.62 42 29892.31 43 24534.66 44 30868.32 45 22189.32 46 24831.07 47 21282.5 48 19620.42 19 13109.75 50 19029.89 51 17173.21 52 14230.1 53 15564.2 54 20138.13 55 24522.2