ory Bookmarks People Window Help 4@my.stchas.ex175N syllabus(SU18).docx: MA McGr
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ory Bookmarks People Window Help 4@my.stchas.ex175N syllabus(SU18).docx: MA McGraw-Hill Connect Math x ps://www-awh.connectmath.com/alekscgi/x/Isl.exe/io u-lgNslkr7j8P3jH-IQgk5JxX3p4G4FLIenl7Udru5 IMATH Hosted by ALEKS Corp Quiz # 5(Ch.7) Previous 1 2 3 4 5 6 7 8 9 Question 5 of 9 (1 point) The prices (in dollars) for a particular model of digital camera with 6.0 megapixels and an optical 3X zoom lens are shown below for 10 online retailers. Round sample statisties and final answers to one decimal place. 231 192 189 249 245 214 201 221 180 200 Download data Estimate the true mean price for this particular model with 98% confidence. Assume the variable is normally distributed.Explanation / Answer
Solution:- Given samples : 231,192,189,249,245,214,201,221,180,200
x = 212.2 , s = 23.8551 , n = 10
df = n - 1 = 9
t = 2.821
98% confidence intervlal for the the mean camera prce is X +/- t*s/sqrt(n)
= 212.2 +/- 2.821*23.8551/sqrt(10)
= (190.9193 , 233.4806)
= (190.9 , 233.5) rounded
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