Find c such that each of the following is true. (Round all answers to two decimal places.) (a) p( 0 < z < c ) = 0.0910 (b) p( - c < z < c ) = 0.39 (c) p( z > c ) = 0.6064

Suppose s(t) is the total number of miles of railroad in the US built by the end of year t. Give an expression for cach of the following, using the function 8. (You don't need to find a formula.) (a) The number of miles of railroad built by the end of 1885. (b) The number of miles of railroad built during 1884. (c) The average number of miles of railroad built per year during the 1890s.

A different I/O psychologist wants to know if there is a difference in worker evaluations depending if the employee is a male or female.  A group of managers were recruited and each rated both 15 men and 15 women employee evaluations on a scale of 0-10.  The ratings on the worker evaluations were recorded for each manager.  Which statistical test would be best to determine if there is a significant difference between groups?     one-sample t-test     dependent samples t-test           ANOVA

When an oven is turned off its interior temperature is given by T=70+330(0.8)7, where T is the temperature in (F) in the oven and t is the time in minutes after the oven is turned off. For each of the following, assume room temperature remains constant. What is the oven temperature (in F) after ten minutes?