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Unformatted text preview: that no outliers exist. d. Is it reasonable to use the onemean tinterval procedure to obtain a confidence interval for the mean number of chocolate chips per bag for all bags of Chips Ahoy! Cookies? Explain your answer. Yes, due to the fact that the sample size is large enough (42). e. Determine a 95% confidence interval for the mean number of chips per bag for all bags of Chips Ahoy! Cookies, and interpret your result in words. ( Note: 1261.6; s = 117.6.) = 117.6 mean = 1261.6 x = /n = 117.6/42 = 18.146 mean 2 x = 1261.6  36.292 = 1225.308 mean +2 x = 1261.6 +36.292 = 1297.892 therefore, confidence interval is 1225.308 1297.892 With 95.44% confidence we can say that the amount of chocolate chips in a bag of Chips Ahoy! Cookies is between the 1225.308 1297.892...
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This note was uploaded on 01/18/2012 for the course STA 201 taught by Professor Kohn during the Winter '09 term at Thomas Edison State.
 Winter '09
 KOHN

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