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Z or t StatisticsIf n ≥30 we use Z, if, n < 30 we use t statistics. These statistics can be used to test the hypothesis:
Ho: B = O that is, there is no relationship between X and YHA: B≠ O There is a significant relationship between X and Y
The level of significance is α = 0.05
The degrees of freedom = n-k-1Conclusion:
Reject Ho since computed T > tc. This means that there is a significant relationship between the labour costs and number of units.
How costs behave as the level of activity/volume changes. Why an understanding of cost behaviour is important ? Types Variable e.g. petrol, direct materials Fixed e.g.
Winner says, "It is clear that in decades to come a great many things like telephone answer machines and automatic bank tellers will become, in effect, members of our society." Mor
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Prepare cash budget?
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Correlation coefficient (r) Correlation coefficient measures the degree of association between two variables such as the cost and the activity level. r = nΣxy - Σx Σy
Q.Process of Pricing in maturity period? Maturing periods is the third stage in the life cycle of a product. If is a stage between growth period and decline period of sales. So
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