rebekah052482
18.07.2020 •
Mathematics
Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She randomly selects a sample of 61 cookies and finds that the number of chocolate chips per cookie in the sample has a mean of 5.5 and a standard deviation of 3.1. What is the 80% confidence interval for the number of chocolate chips per cookie for Big Chip cookies? Enter your answers accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).
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Ответ:
Step-by-step explanation:
The value of
is between 
and 
which is close to 
.