STAT200 Lecture Notes - Lecture 4: Standard Score, Standard Deviation
19 Apr 2016
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Submit your answers in a word file to sakai at the same place you downloaded the file. Remember you can paste any excel or jmp output into a word file (use paste special for best results). Put your name and the assignment # on the file name: e. g. ilvento assign4. doc. Answer as completely as you can and show your work. Upload your file via sakai: normal distribution. They are told the weight of the melons follows a normal distribution with a mean of 17. 0 lbs and a standard deviation of 2. 1 lbs. Z score = (15-17)/2. 1 = -. 95 p = (. 3159 + . 3413)/2 = . 3286. Since the right is the same as the left each half represents p =. 5. 3286 = . 8286 or 82. 6% of the melons greater than 15 lbs. Watermelons under 11 lbs are considered unacceptable to the grocery store. What proportion of watermelons would be removed by the store? (11-17)/2. 1 = -2. 857.
