HI this is SCI1020 question and its about the chi-square test.

I need your help and I hope I can get answer within a hour

thanks in advance :)

99 Many birds are injured or killed by ying into windows. It appears that birds don't see windows. Can tilting windows down so that they reect earth rather than sky reduce bird strikes? Place four windows at the edge of a woods: two vertical and two tilted 4-0 degrees. During the next four months, there were 54- bird strikes: 32 on the vertical windows and 22 on the 40-degree windows. If the tilt has no effect, we expect strikes on windows with or without tilts to have equal proportions. 1) Perform the goodness of fit test at a=0.05. 2) Perform the z-test at a=0.05. Let p be the proportion of strikes on the vertical windows. 1. Hypothesis 2a. Condition checking: npo = n (1-po) = 2b. Finding the test statistic. Sample proportion: p = z-statistic: Z = p-Po Po(1-Po) n 3. Using table A from Moore, find the p-value: 4 Statistical decision and Conclusion: 3) Two methods, a two-tailed test for a proportion based on the normal distribution and a chi-square test for two categories, are equivalent. Check that the conclusions you had using two methods are the same. Verify that the x2-test statistic for the goodness-of-fit test is just the square of the z-statistic you obtained above