Question 2: The tensile strength in megapascals for 15 samples of tin were determined and found...
Please help with BOTH 1) 2) Tensile strength tests were carried out on two different grades of wire rod, resulting in the accompanying data. Grade AISI 1064 AISI 1078 Sample Size m = 129 n = 129 Sample Mean (kg/mm) x= 109.3 y = 129.9 Sample SD 51 = 1.1 52 = 2.0 (a) Does the data provide compelling evidence for concluding that true average strength for the 1078 grade exceeds that for the 1064 grade by more than 10...
need answer for 15 and 16 ty updates, fixes, and improvements, choose Check for Updates. BPA 232, Business Statistics Fall 2017 Section 4: Make and interpret your decision using p-value 15. Last year, an insurance company found that the average claim was $2,000 with a standard devíation of $500. If the average claim has increased, the company must raise its rates. This year, mean of a random sample of 40 claims is $2,150. At the .05 level, has the mean...