Significance Level for Accompanying Data
The accompanying data are the times in seconds that it took a sample of employees to assemble a
component at Ental Industries manufacturing facility. Assembly times are normally distributed. At the .05 significance level, can we conclude that the mean assembly time for this component is not equal to 3 minutes? Use HA:   180.
H0: =180(3 minutes)
H0: The mean assembly time for the component is equal to 3 minutes
H1: ≠ 180 (3 minutes)
H1: The mean assembly time for the component is not equal to 3 minutes
If the P-value of the test statistic is less than 0.05 we reject the null hypothesis ...