Question
The last period’s forecast was 70 and demand
was 60. What is the simple exponential smoothing forecast with alpha of 0.4 for the next period?Solution
S(t-1 )= 70
X(t) = 60
Alpha = 0.4
s t  = αx t +(1 – α)s t-1 = s t-1 + α(x t – s t-1 )
Substituting the values we get,
0.4*60 + 0.6*70= 24 + 42= 66
- If the monthly income of ‘Anil’ is (100/3)% more than that of ‘Sunil’, then how much percent less is the monthly income of ‘Sunil’ compared to ...
Income of Ankit is Rs. 36,000. He spends 18% on rent, 22% on clothing, 'a%' on food, 28% on others and saves the rest. If his savings is Rs. 5,400, find...
Anju spends 16% of her monthly income on rent, 22% of it on groceries, 14% of it on children's education and 50% of the remaining on other items. If ₹...
- Rohit spends 65% of his salary every month and manages to save Rs. 5,600. What is his monthly income?
There are two friends, 'C' and 'D'. Income of 'C' is Rs. 54,000. 'D' saves 25% of his income and 'C' saves 40% of his income. If savings of 'D' are Rs. ...
The incomes of C and D are in the ratio 9:6, while their expenditures are also in the same ratio of 9:6. What is the ratio of the savings of C to that o...
- The price of a product is increased by Rs. 600. If the old price was 40% less than the new price, then the old price was:
A Company allow 8% commission on the total sales to its salesman but if the salesman is appointed on a fix salary of Rs. 10000 and 6% commission on the ...
Pankaj saves 33.33% of his monthly Income. If monthly Expenses of Pankaj is increased by 25% with respect to his previous monthly expenses, then his mon...
Income of 'Ravi' is 20% more than that of 'Amit', and the ratio of expenditure of Amit to that of Ravi is 3:4. Amit's income is Rs. 800 more than Ravi's...
