Mathematics, 05.08.2020 06:01 Ezekielcassese
According to an article the submerged arc welding (SAW) process is commonly used for joining thick plates and pipes. The heat affected zone (HAZ), a band created within the base metal during welding, was of particular interest to the investigators. Here are observations on depth (mm) of the HAZ both when the current setting was high and when it was lower. Non-high 1.04 1.15 1.26 1.70 1.89 2.00 2.34 2.49 2.71 1.40 1.41 1.58 1.73 1.92 2.05 2.54 2.67 2.79 High 1.54 2.01 2.05 2.03 2.35 2.54 2.95 2.92 3.00 Required:a. Construct a comparative boxplot and comment on interesting features. b. Is it reasonable to use the two-sample t test to test hypotheses about the difference between true average HAZ depths for the two conditions?c. Does it appear that true average HAZ depth is larger for the higher current condition than for the lower condition? Carry out a test of appropriate hypotheses using a significance level of 0.01.
Answers: 3
Mathematics, 21.06.2019 14:00
Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills
Answers: 2
Mathematics, 21.06.2019 17:30
Which of the following tables represents exponential functions?
Answers: 1
Mathematics, 21.06.2019 21:00
Ftara spends $219 a month for her car payment and she makes $3,200 a month, what percent of her monthly income is spent on her car payment?
Answers: 2
Mathematics, 21.06.2019 23:00
Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?
Answers: 2
According to an article the submerged arc welding (SAW) process is commonly used for joining thick p...
Mathematics, 06.11.2020 18:00
Mathematics, 06.11.2020 18:00
Social Studies, 06.11.2020 18:00
Mathematics, 06.11.2020 18:00
Arts, 06.11.2020 18:00
Mathematics, 06.11.2020 18:00
Mathematics, 06.11.2020 18:00
Physics, 06.11.2020 18:00
Mathematics, 06.11.2020 18:00
Mathematics, 06.11.2020 18:00
Mathematics, 06.11.2020 18:00