Question: Question 18 1 pts If a parameter is computed from a set of data, which of the following statements is true? o The data are

Question 18 1 pts If a parameter is computed from a set of data, which of the following statements is true? o The data are obtained from a random sample. o The data must be quantitative. o The data is from a sample that is representative of the population. The data are obtained from a stratified sample. o The data are obtained from a census. Question 19 1 pts A manufacturer of batteries routinely tests its products to determine lifetime (hours of continuous usage). Suppose they select a sample of 30 AAA batteries and find that the average lifetime is 1500 hours. This is a o population o statistic o sample. o parameter o sampling frame. Question 20 1 pts Which is true about a 99% confidence interval based on a given sample? 1. The interval contains 99% of the population. II. Results from 99% of all samples will lie in this interval. II. The interval is wider than a 95% confidence interval would be. ol only oll only None o I and Ill o Ill only

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