Consider the following time series Quarter Year1 Year2 Year3
1 71 68 62
2 49 41 51
3 58 60 53
4 78 81 72
a. construct a time series plot. what type of pattern exist in the data
b. use the following dummy variables to develop an estimated regression equation to account for the seasonal effects in the data; Qtr1=1 if Quater 1,0 otherwise Qtr2=1 if Quater 2,0 otherwise Qtr3=1 if Quater 3,0 otherwise
c. compute the quarterly forecast for next year

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

What is 20+(5 x 2/5 )+ 3 show your work

Browning labs is testing a new growth inhibitor for a certain type of bacteria. the bacteria naturally grows exponentially each hour at a rate of 6.2%. the researchers know that the inhibitor will make the growth rate of the bacteria less than or equal to its natural growth rate. the sample currently contains 100 bacteria. the container holding the sample can hold only 300 bacteria, after which the sample will no longer grow. however, the researchers are increasing the size of the container at a constant rate allowing the container to hold 100 more bacteria each hour. they would like to determine the possible number of bacteria in the container over time. create a system of inequalities to model the situation above, and use it to determine how many of the solutions are viable.