(1.99 )Pigeon diet study. The Australian Journal of Zoology (Vol. 43, 1995) repo
ID: 3354273 • Letter: #
Question
(1.99 )Pigeon diet study. The Australian Journal of Zoology (Vol. 43, 1995) reported on a study of the diets and water requirements of spinifex pigeons. Sixteen pigeons were captured in the desert and the crop (i.e., stomach) contents of each examined. The accompanying table reports the weight (in grams) of dry seed in the crop of each pigeon. Use the SAS printout below to find the pint estimator, and a 99% confidence interval for the average weight of dry seeds in the crops of spinifex pigeons inhabiting the Western Australian desert. Interpret the result 4- Sanple Statistics for SEEDHT Mean Std. Dev Std. Error 16 1.37 1.03 0.26 Hypothes is Test Nu 11 hypothe."s: Alternative Mean of SEED T Mean of SEEDHTo Df Prob 5.312 15 " 000 1 99 Confidenee Inter-al for the Mean 0-61 2.13Explanation / Answer
no.of pigeons,samplesize=16
probability in the test comes out to be greater than t-statistic therefore we will reject the null hypothesis
and accept the alternative hypothesis.i.e.
mean of seed 0
the mean value of the weight of seed in pigeon stomach = 1.37 with a standard deviation of 1.03
it mean67% of the seed weight will lie betwen 1.37+1.03=2.40 and 1.37-1.03 = .34
99% confidence interval values tell that we can say it with 99% confidence that the weight of seed will lie between 0.61 and 2.13 (all weights in grams)
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