The sample observations on stabilized viscosity of asphalt specimens are 2781, 2900, 3013, 2856 and 2888. suppose that for a particular application, it is required that true average viscosity be 3000. does this requirement appear to have been satisfied? state and test the appropriate hypothesis at alpha = 0.05.

There is no enough evidence that the viscosity is not 3000. The viscosity is not significantly different from 3000.

Step-by-step explanation:

We have to perform an hypothesis test on the mean.

The null and alternative hypothesis are:

The significance level is 0.05.

The mean of the sample is:

The standard deviation of the sample is:

The statistic t can be calculated as:

The degrees of freedom are

The P-value for t=-1.338 and df=4 is P=0.2519. The P-value is greater than the significance level, so it failed to reject the null hypothesis.

There is no enough evidence that the viscosity is not 3000.

i dont know sorry

step-by-step explanation: