HOMEWORK SEC 2.4
1) You are applying for a job at two companies. Company A offers starting salaries with µ=$35,000 and s=$1,000. Company B offers starting salaries with µ=$35,000 and s=$3,000. From which company are you more likely to get an offer of $37,000 or more?
(2) The mean value of land and buildings per acre from a sample of farms is $1400 with a standard deviation of $100. The data set has a bell-shaped distribution. using the empirical rule, determine which of the following farms, whose land and building values per acre are given, are unusual (more than two standard deviations from the mean).
Are any of the data values very unusual (more than three standard deviations from themean)?
$1488, $1616, $1325, $1009, $1571, $1304
Which of the farms are unusual (more than two standard deviations from the mean)? Select all that apply.
(Multiple Choice Answer)
(3) From a sample with n=32, the mean duration of a geyser’s eruptions is 3.37 minutes and the standard deviation is 1.05 minutes. using Chebychev’s Theorem, determine at least how many of the eruptions lasted between 1.27 and 5.47 minutes.