# Unit 5 - BUSINESS STATISTICS- BBA 2nd Sem

# Let's Start

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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