9. I'm so confuse with my work can someone put clear steps for me ?

9. b An article wanted to look at the compression strength of aluminum cans filled with strawberry drink and another sample filled with cola. (a) Does the following data suggest that the extra carbonation of cola results in a higher average analysis? compression strength? Base your answer on a P-value. What assumptions are necessary for your beverages. (b) Develop a 90% confidence interval of the difference of compression strength between the two Beverage Sample Size Strawberry drink Sample Mean Sample SD 15 540 15 21 Assumptions Cola 554 15 We have to assume a Normal Distribution, * We have to assume a Normal distribution , Simple random sample, Simple Random Sample, Independent Samples. Independence Sample Ho: MS = Mc 5 Ha: MSLMc Test Statistic : 540-554 14 - 0. 0221 Test Statistic = 1 = 540 - 554 - = - 2.1011 617.4 + 15 21 + 152 632. 4 Degree of freedom : 16.4 Degree of Freedom = v= 2 =. 9025 = 25. 3351 18.17142857 - " ( 35 " ) "+ + ( 15 2 )2 1 (73 ) + (152 ) 2 * P - Value R-STUDIO p - value = pt ( - 2. 1011, 25. 3 351 )= 0.02287 > p + ( - 0. 221, . 9025 ) There is evidence that the cola has higher awcrage compression * There evidence that the b. Strength cola has higher average compression strenght h1 = is X1 = 540 SI = 21 12= 15 42 = 55 4 52 = 15 dF = 15 + 15 - 2 = 28 1 = 1 - 0.9= 0-1 todF : + al , 28 = 1, 701 CI = (540 - 554 ) + 1.701 212 + 152 = -14 1 11.33 CI , = - 14 - 11.33 =- 25.33 CIP = - 14 + 11.33 + 11. 33 = - 2-67 Answer : - 25. 33 2 M1- M2 C - 2.67