1. For a normal distribution, what is true about the mean, and median? (always equal, the mean is twice the median, the mean and median are equal to the standard deviation, none of these is true pick one) Will-ll is the probability ofa zvalue between 3. l2 and LS4? A data set has a mean of I If} and a standard deviation of 15. Which is closest to the z-score of an element ofthis data set with a value of ti'? {a} 311:1 (11} arm {1:} 45 (a) 45 The mean ofall possible sample means is the population mean. {always larger than, always smaller than, always equal to, not a constant relationship with} If a population follows the normal distribution, what will be the shape ofthe distribution of sample means? A is a singlenumber estimate of a population parameter. The fraction or percentage of a sample that has a certain characteristic is called a The standard error of the mean equals the population standard deviation divided by the square root of the The difference between a sample mean and the population mean is called the It]. The mean distance a new sales representative travels per week in the first year is 3D!) miles. At Olivia's job interview, she found out that she would travel at most the mean distance per week for rstyear sales reps. Which of the following Zscores are possible for her mean weekly traveling distance during her first year? {a} 4.42 {b} [I {c} 11TH {d} Not enough information