In the Focus Problem at the beginning of this chapter, a study was described comparing the hatch ratios of wood duck nesting boxes. Group I nesting boxes were well separated from each other and well hidden by available brush. There were a total of 483 eggs in group I boxes, of which a field count showed about 272 hatched. Group II nesting boxes were placed in highly visible locations and grouped closely together. There were a total of 815 eggs in group Il boxes, of which a field count showed about 274 hatched. LUSE SALT (a) Find a point estimate for p₁, the proportion of eggs that hatch in group I nest box placements. (Round your answer to four decimal places.) p Find a 95% confidence interval for pr. (Round your answers to three decimal places.) upper limit lower limit (b) Find a point estimate for p2, the proportion of eggs that hatch in group II nest box placements. (Round your answer to four decimal places.) p 2 Find a 95% confidence interval for pz. (Round your answers to three decimal places.) lower limit upper limit == Find a 95% confidence interval for p₁ - P₂. (Round your answers to three decimal places.) (c) lower limit upper limit Does the interval indicate that the proportion of eggs hatched from group I nest boxes is higher than, lower than, or equal to the proportion of eggs hatched from group II nest boxes?
In the Focus Problem at the beginning of this chapter, a study was described comparing the hatch ratios of wood duck nesting boxes. Group I nesting boxes were well separated from each other and well hidden by available brush. There were a total of 483 eggs in group I boxes, of which a field count showed about 272 hatched. Group II nesting boxes were placed in highly visible locations and grouped closely together. There were a total of 815 eggs in group Il boxes, of which a field count showed about 274 hatched. LUSE SALT (a) Find a point estimate for p₁, the proportion of eggs that hatch in group I nest box placements. (Round your answer to four decimal places.) p Find a 95% confidence interval for pr. (Round your answers to three decimal places.) upper limit lower limit (b) Find a point estimate for p2, the proportion of eggs that hatch in group II nest box placements. (Round your answer to four decimal places.) p 2 Find a 95% confidence interval for pz. (Round your answers to three decimal places.) lower limit upper limit == Find a 95% confidence interval for p₁ - P₂. (Round your answers to three decimal places.) (c) lower limit upper limit Does the interval indicate that the proportion of eggs hatched from group I nest boxes is higher than, lower than, or equal to the proportion of eggs hatched from group II nest boxes?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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