#1

A scientist claims that only 63% of geese in his area fly south for the winter. He tags 60 random geese in the summer and finds that 19 of them do not fly south in the winter. If= 0.05, is the scientist's belief warranted?

#2

1. Find the level of the confidence interval that has the given critical value.

1.97

#3

1. A recent survey indicated that the average amount spent for breakfast by business managers was $7.58 with a standard deviation of $0.42. It was felt that breakfasts on the West Coast were higher than $7.58. A sample of 81 business managers on the West Coast had an average breakfast cost of $7.65. Find theP-value for the test.