Calculate the smallest sample size required to estimate the population mean under the specifications shown below.a. confidence level

90%,

=14,

and

e=7

b. confidence level

99%,

=26,

and

e=0.6

c. confidence level

98%,

=0.5,

and

e=3

d. confidence level

95%,

=1.7,

and

e=0.4

e. confidence level

98%,

=4,

and

e=