The data below are taken from Josephat Shoes Store quarterly sales($1000) from 2007- 2010. Period 2007 2008 2009 2010 Q1 54 55 49 60 Q2 58 61 69 72 Q3 94 84 95 99 Q4 70 76 88 80 a. Plot the time series data and comment on the pattern depicted by the data. [5] b. Compute the 4-period centered moving averages for this data. [5] c. Fit a trendline equation to this data using the sequential coding method, starting from 1

you should at least use a calculater

step-by-step explanation:

853.3

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies

cant

step-by-step explanation: there is no picture