In order to determine how many hours per week freshmen college students watch television, a random sample of 256 students was selected. It was determined that the students in the sample spent an average of 14 hours per week watching television. The standard deviation is 3.2 hours per week for all freshmen college students.
a. Provide a 95% confidence interval estimate for the average number of
hours that all college freshmen spend watching TV per week.
b. Suppose the sample mean came from a sample of 25 students. Provide a 95% confidence interval estimate for the average number of hours that all college freshmen spend watching TV per week. Assume that the hours are normally distributed.
a. 13.608 to 14.392
b. 12.679 to 15.321
You might also like to view...
The stock market crash in 1929 led to the beginning of the extensive regulation of trading stock on stock exchanges.
Answer the following statement true (T) or false (F)
The prefatory parts of a report should
A) help readers decide whether and how they need to read the report. B) be prepared and written before the text of the report. C) include an introduction to the report. D) not require any revision once they are written. E) be placed at the end of the report.
The Gomez Trust is required to distribute $80,000 annually split equally between its two income beneficiaries, Lara and Byron. If trust income is not sufficient to pay these amounts, the trustee can invade corpus to the extent necessary. During the current year, the trust reports DNI of $60,000. Byron receives an additional $30,000 discretionary corpus distribution. a.How much of the $40,000 distributed to Lara is included in her gross income? b.How much of the $70,000 distributed to Byron is included in his gross income? c.How much of these distributions are first-tier distributions or second-tier distributions?
What will be an ideal response?
Which statement most accurately describes third party beneficiary rights?
a. A beneficiary may enforce a contract if the parties intended to benefit him and if enforcing the promise will satisfy a duty of the promisee to the beneficiary. b. If a promisee intended to make a gift to the beneficiary, the beneficiary may not enforce the contract. c. An intended third party beneficiary has no enforceable rights in a contract. d. Incidental beneficiaries have enforceable rights against both contracting parties.