A test is made ofH

0

:=

12

versusH

1

:<

12

.A sample of size=

n

50

isdrawn,and=

x

10

.The population standard deviation is=

5

.

(a) Compute the value of the test statistic

z

.

(b) IsH

0

rejected at the=

0.10

level?

(c) IsH

0

rejected at the=

0.05

level?

Part:0 / 3

0 of 3 Parts Complete

Part 1 of 3

(a) Compute the value of the test statistic. Round the answer to at least two decimalplaces.=

z