estions 11 and 12 are related to the following andom sample of hotels in New York City yielded
the following nightly rates The margin of error for a 95% interval estimate of the mean nightly
rate of all hotels in New York city is, $23.66$22.12$20.67$19.32 2. The 95% interval estimate of
the average nightly hotel rate is, abcd$334$350$362$371$449$433$421$412 Questions 13 and
14 are related 13 The lower end of a 95% interval estimate of the mean annual salary of persons
with an MBA degree five years after graduation is reported to be $99,455. The interval is based
on a sample of 90 persons. The sample standard deviation is $8,905. What is the point estimate
of the salary? abcd$98,609$99,505$100,408$101,320 14 In the previous question, what is the
upper end of the interval? abcd$103,185$104,228$105,280$106,344