Essay
Number of Salon Hair Colourings Narrative
A stylist at the Hair Care Palace gathered data on the number of hair colourings given on Saturdays and on weekdays. Her results are listed below. Assume the two random samples were independently taken from normal populations.
Saturday: 
= 50 and 
= 14
Weekday: 
= 65 and 
= 13
-Refer to Number of Salon Hair Colourings Narrative. Find the point estimate of p1 - p2 and the margin of error.
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