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Cpa Section Iv Quantitative Analysis Question Paper
Cpa Section Iv Quantitative Analysis
Course:Cpa Part Iii
Institution: Pinnacle Business School question papers
Exam Year:2011
CPA Section IV.
Quantitative Analysis.
Hypothesis Testing.
Question 1
The ER ambulance service claims that it takes on average 8.9 minutes to reach its destination in emergency calls. To check out this claim, the Kenya Medics Association has timed 50 emergency calls getting a mean of 9.3 minutes with a standard deviation of 1.8 minutes.
Required
Does this constitute evidence that the figure claimed is true?
Question 2
In a certain population, the proportion of smokers was 20% before an anti-smoking campaign was copied out. After the campaign, out of 40 people randomly selected, it was found that 6 were smokers. Has the campaign against smoking been defective?
Question 3
The share prices of a company on different days in a month were found to be 66, 65, 69, 70, 69, 71, 70, 63, 64 and 68.
Required
Discuss whether the mean price of the shares in the month is 65
Question 4
A kenya Bureau of Standards inspector visits a supermarket and weighs ten 2 kg cans of a cooking fat. The following weights were found (in kgs):
1.95, 1.96, 2.01, 2.00, 1.89, 2.10, 1.97, 1.99, 1.99.
Required
Construct a 95% confidence interval of the mean weight of this type of cooking fat.
Question 5
An intelligence test is carried out in a college on 12 students randomly chosen from BA degree, and they obtain a mean score of 110 points with a standard deviation of 5 points. A random sample of 12 students from BSC degree scored a mean of 117 points with a standard deviation of 7 points. Does this suggest a significant difference in student intelligence between the two degrees?
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