A researcher wishes to see if the average number of sick days a worker takes per year is less than 5 . A random sample o

[answerhappygod]

A researcher wishes to see if the average number of sick days a
worker takes per year is less than
5
. A random sample of
27
workers at a large department store had a mean
of
4.6
. The standard deviation of the population is
1.1
. Is there enough evidence to support the researcher's claim
at
=α0.05
? Assume that the variable is normally distributed. Use
the
P
-value method with tables.