Determining ninety five percent confidence interval

Assignment Help Basic Statistics

Reference no: EM1323244

Q1) At certain college, there were 600 science majors, 200 engineering majors, and 500 business majors. If student is chosen at random, determine the probability that student is engineering major?

Q2) According to Internet posting, 80% of adults enjoy drinking beer. If group of 3 adults is chosen at random, determine probability that none of them enjoy drinking beer.

Q3) Mean return for a random sample of 33 mutual funds is= 14.93 percent with standard deviation of 9.57. Create a 95% confidence interval for mu, population mean.

a) 11.54 to 18.32

b) 11.01 to 18.85

c) 14.82 to 15.04

d) 0.95 to 18.91

Q4) Sample mean is 50, t-statistic is 1.96, and standard error of sample mean is 2. Determine the 95 percent confidence interval?

a) 46 to 50

b) 46.08 to 53.92

c) 46.80 to 53.29

d) 48 to 52

Reference no: EM1323244

Questions Cloud

Program for translates letter grade into number grade : Write down a program which translates the letter grade into number grade.

Small number of industries have a greater probability : Cartels with a small number of industries have a greater probability of reaching the monopoly outcome than do cartels with a larger number of industries.

What is the current in the overall circuit : A small radio operates on 3.00 V and has a resistance of 15 coulomb. At what rate does the radio use electric energy.

Measure level of success of each scenario : Discuss methods to measure level of success of each scenario.

Determining ninety five percent confidence interval : Sample mean is 50, t-statistic is 1.96, and standard error of sample mean is 2. Determine the 95 percent confidence interval?

Analyze how a bartender would know which the price : Analyze how a bartender would know which the price of an exotic drink was too low or too high.

Breaking the version of cipher : Assume an improved version of Vigen ere cipher in which in place of utilizing several shift ciphers, several mono-alphabetic substitution ciphers are utilized.Display how to break this version of the cipher.

Number of bankruptcy filings : Use the American Bankruptcy Institute's site to find and examine the total number of bankruptcy filings last year, the number of non-business filings broken down by bankruptcy code

Budget deficit are funds which some branches : Some people are saying which majority of the budget deficit are funds which some branches of the government owe to other branches.

User Account

All Pages