A UHD student is interested in examining the statement that litebrite light bulbs have an average of 23.00 months. The student's researcher selected 60 Litebright bulbs and determined that the mean life was 22.75 months. It is known that the life of litebulb his normally distributed and the standard deviation of the light bulls is 1.5 Does the data support the Lite Brites claim that the average life of their bulbs is 23.00 months?
State the Null (HO) and Research hypothesis (HA).
Find the test statistic.
state the P value.
State the researched conclusion.