A chemist measures the haptoglobin concentration (in grams perlitre) in the blood serum from a random sample of 11 healthyadults. The concentrations are assumed to be normally distributedand are given below.
| 1.4,1,1.8,1.8,0.4,1.5,2.2,0.8,0.9,3.3,2.2 |
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At a 1% level of significance, perform a statistical test to seeif there is evidence that the mean haptoglobin concentration inadults is less than 1.8 grams per litre, by answering the followingparts.
1.1 (.8 marks)
| Give the Null and Alternative Hypotheses, using mu to denote thepopulation mean. 1.2 (.2 marks) | What's the significance level ??
? = |
1.3 (1 mark) | Find the value of the test statistic correct to 2 decimalplaces.
t ? |
1.4 (1 mark) | What is the p-value?
Give your answer to 3 decimal place accuracy.
p-value ? You have not attempted this yet |
1.5 (.5 marks) |
Is the p-value less than the critical value?
You have not attempted this yet |
1.6 (.5 marks) |
