Carry out an appropriate test of significance to see whether, on average, there is a genuine diff
Question:
Carry out an appropriate test of significance to see whether, on average, there is a genuine diff erence between the fi rst E. coli count and the second E. coli count. Report your -value and a 95% confidence interval.
There are several research questions we will ask in this investigation. The first one is: On average, is there a significant difference in the E. coli counts between the water that has just been filtered and water that is sitting in the bottom of a filter after it was filtered the previous day? The data set we will use contains results from 14 water filters each giving E. coli counts (per 100 mL) on the first day and the second day after the water was filtered.
Step by Step Answer:
pvalue 0 The 95 confiden...View the full answer
Introduction To Statistical Investigations
ISBN: 9781118172148
1st Edition
Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy
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