Show transcribed image text cor ries chims t 8 yars with voriane of lyar a)It random Construct a S5% confidn ce interval fr z. Assume the b Hery Kves to be ofproximatly nomnaly dstributed claim thatç–’2 is valid. )USing the above CT determine if tha manufa curers
cor ries chims t 8 yars with voriane of lyar a)It random Construct a S5% confidn ce interval fr z. Assume the b Hery Kves to be ofproximatly nomnaly dstributed claim thatç–’2 is valid. )USing the above CT determine if tha manufa curers