Astudy of the career paths of hotel general managers sent questionnaires to an srs of 150 hotels belonging to major u. s. hotel chains. there were 104 responses. the average time these 104 general managers had spent with their current company was 10.7 years. give a 99% confidence interval for the mean number of years general managers of major-chain hotels have spent with their current company. (take it as known that the standard deviation of time with the company for all general managers is 3.2 years.)

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.