Question

Conduct Chi-square analyses on data presented in problems. For each Chi-square, include an appropriate figure and summary statement.

11.4) The positioning of nests in shrubs was noted for a species of birds. Determine if there was a directional preference in placing the nests (fi= frequency of observation i) Nest Position (i): N NE Е SE SW W NW fi: 65 47 73 67 51 45 45 48

Answer 1

Jaution- shrubs was noted The positioning of nests in for a Species of birds There is a direction O; preference in placing the nests Pe={18) E; = AXN (0:-ci): 55.125 1.77 0.1250 55.125 5.80 0-1250 2.56 0x12.50 55.125 55.125 0-31 0:1250 0.12.50 55.25 1-20 1.86 0:12.50 55.125 0-1230 0-1250 55:125 55-125 LIT 16.27 Total when

Chi Scouare Test Of Homogeneity n 10: -E:) chi sauare = ? Ei where 0; Observed treauercy A G; - Expected frequency f in Vitotas * Ci total grand total Where Y -> no. of YOLOS Ć y no of Columns Chisov.16.270 K = 8.00 alpha = 0.05 Critical vaive = CHISQINU, RT (0.05, 8-1) =10.067 Pyarue = 0.0227 = CHI56. TEST (B2:B4, Dai Du) :: Resect Ho as chisous Critical value & conciude that there is a direction peeference in placing the mests