An engineer wants to compare the hardness of four blends (A, B, C, D} of paint. Sis samples of each paint blend were applied to a piece of metal. The pieces of metal were cured. Then each sample was measured for hardness. The mean and sample standard deviation [ssd) for the hard- ness was determined and these values are listed in table I. The raw data are not available. Complete these questions \"by hand.\" Show all your work Answer this question for 95% con- dence. a. Provide a bar plot of the means of the hardness as a function of the paint blend. hieltide error bars that represent 2 times the sample standard deviation |[Ian you state if the hardness is different for the different blends?I 1Why or why not? Complete table 2. For 95% condence, nd the Fun, {F critical} 1It'alue. Complete the ANUVA. Show all your work. Complete table 3. State the conclusions of this experiment in statistical terms. rte-est Table l -3.--1'- -EE- Isa? 3.363 .m- 333:} 2.636 salt] In \"1-\" Table I Number of treatments It Number of values . r treatment a Total number of measurements N Table 3: ANDVA Results