Unit 5 - BUSINESS STATISTICS- BBA 2nd Sem
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Answer - b) To reduce the cost and time of data collection
Answer - d) Homogeneity
Answer - c) Measurement error
Answer - a) Sampling error
Answer - b) To disprove a hypothesis
Answer - a) 0.05
Answer - a) The null hypothesis is true, but rejected
Answer - c) Failing to reject the null hypothesis when it is false
Answer - a) Increases
Answer - a) Normal distribution
Answer - b) It may lead to biassed results
Answer - a) Randomly
Answer - c) Participants refusing to participate
Answer - b) Sampling bias occurs in the sample selection, while non-sampling bias occurs during data collection
Answer - b) The region where the alternative hypothesis is rejected
Answer - d) The probability of obtaining the observed results under the assumption that the null hypothesis is true
Answer - b) Type-II error
Answer - b) By decreasing the significance level
Answer - c) The distribution of sample means approaches a normal distribution, regardless of the population distribution
Answer - a) Requires knowledge of the population standard deviation
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