According to a travel website, workers in a certain country lead the world in vacation days, averaging 23.12 days per year. The following data show the number of paid vacation days for a random sample of 20 workers from this country. Complete parts a through c below. 8 10 3 4 13 25 22 27 20 29 18 29 20 18 25 31 27 26 43 65 a. Construct a 99% confidence interval to estimate the average number of paid vacation days for workers from this country. The 99% confidence interval to estimate the average number of paid vacation days for workers from this country is from ---- to -----
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