Problem 3 2 National Scan Inc Sells Radio Frequency Inventory Tags Monthly Sales Seven Mon Q34307038

Problem 3-2

National Scan, Inc., sells radio frequency inventory tags.Monthly sales for a seven-month period were as follows:

MonthSales
(000)UnitsFeb.14Mar.17Apr.11May.19Jun.21Jul.22Aug.26

b. Forecast September sales volume using each of thefollowing:

(1) A linear trend equation.(Round your intermediatecalculations and final answer to 2 decimal places.)
  
Yt             thousands

(2) A five-month moving average. (Round your answer to 2decimal places.)

Moving average            thousands

Problem 3-7

Freight car loadings over an 18-week period at a busy port areas follows:

WeekNumberWeekNumberWeekNumber137074151345023808425144553390943515475438010425164855390114351749563951244518505

a. Determine a linear trend line for expected freight carloadings. (Round your intermediate calculations and finalanswers to 2 decimal places.)

YˆY^ =  +  t

b. Use the above trend equation to predictexpected loadings for Weeks 20 & 21. (Round your finalanswers

OR

 

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