In a study of media usage versus education level an index wa

In a study of media usage versus education level, an index was used to measure media usage, where a measurement of 100 represents the U.S. average. Values above 100 represent above average media usage.

Solution

ans> 4th option

p-value is less than the level of significance and so we reject the null hypothesis that there is no difference in the population mean index according to education level.At 0.1 level of signficance,we conclude that at least two education levels have different mean indices.