2. (6 points) We take a sample of size 250 to investigate average spending for tea within the population with deviation
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2. (6 points) We take a sample of size 250 to investigate average spending for tea within the population with deviation
2. (6 points) We take a sample of size 250 to investigate average spending for tea within the population with deviation equal to 5.3. Find what should be maximal average of a sample so that we can claim, based on 9 % significance, that population average spending for tea is at least 45.9? Explain and elaborate your claims
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