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mination periods indays forgrass Seed are normally distributed with a population standard deviation of 5days...

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mination periods indays forgrass Seed are normally distributed with a population standard deviation of 5days and an unknown population mean If a random Sample of 17 types of grass Seed is taken and results in a sample mean of 52 days find a 80 confidence interval for the population mean 20 10 1 282 Z 0 05 2 0 025 2 0 01 2 0005 1 645 2 326 2 574 Select the current answer below D 50 45 53 55 3 50 01 53 99 3 49 85 54 15 49 62 54 38 49 18 54 82 48 88 55 12

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