The IRS is concerned with improving the accuracy of tax information given by its representatives over the telephone. Pre
Posted: Fri May 20, 2022 7:42 am
The IRS is concerned with improving the accuracy of tax
information given by its representatives over the telephone.
Previous studies involved asking a set of 25 questions of a large
number of IRS telephone representatives to determine the proportion
of correct responses. Historically, the average proportion of
correct responses has been 70percent. Recently, IRS
representatives have been receiving more training. On
April 26, the set of 25 tax questions were again asked of 20
randomly selected IRS telephone representatives. The proportions of
correct answers were:
17,15,19,20,18,20, 21, 18, 17, 18, 22, 16, 22, 16,19, 22, 23, 21
, 21, and 16
What are the upper and lower control limits for the
appropriate p-chart for the IRS? Use z =3
The UCLp equals
enter your response here
and the
LCLp equals
enter your response here.
(Enter your responses rounded to four decimal places. If your
answer for LCLp is negative, enter this value as 0.)
information given by its representatives over the telephone.
Previous studies involved asking a set of 25 questions of a large
number of IRS telephone representatives to determine the proportion
of correct responses. Historically, the average proportion of
correct responses has been 70percent. Recently, IRS
representatives have been receiving more training. On
April 26, the set of 25 tax questions were again asked of 20
randomly selected IRS telephone representatives. The proportions of
correct answers were:
17,15,19,20,18,20, 21, 18, 17, 18, 22, 16, 22, 16,19, 22, 23, 21
, 21, and 16
What are the upper and lower control limits for the
appropriate p-chart for the IRS? Use z =3
The UCLp equals
enter your response here
and the
LCLp equals
enter your response here.
(Enter your responses rounded to four decimal places. If your
answer for LCLp is negative, enter this value as 0.)