Question

                             Violent      Sexual      Neutral

No. of subjects	101	100	101
Mean	2.62	2.76	4.05
SD	1.78	2.02	1.74

A study examined whether the content of TV shows influenced the ability of viewers to recall brand names in commercials. The researchers randomly assigned volunteers to watch one of three​ programs, each containing the same

eight

commercials. The shows were either​ violent, sexual, or neutral.​ Afterwards, the subjects were asked to recall the brands of the advertised products. Results are in the accompanying table. Use the table to complete parts​ a) and​ b) below.

Determine the​ t-statistic.

Degrees of freedom

p-value

90% confidence interval

Answer 1

We need to use hypothesis theory and using t distribution properties in testing of hypothesis