Mathematics, 21.04.2020 01:17 12290737
Five samples of a ferrous-type substance are to be used to determine if there is a difference between a laboratory chemical analysis and an X-ray fluorescence analysis of the iron content. Each sample was split into two sub-samples and the two types of analysis were applied. Following are the coded data showing the iron content analysis:
Sample
Analysis 1 2 3 4 5
X-rays 2.0 2.0 2.3 2.1 2.4
Chemical 2.2 1.9 2.5 2.3 2.4
Assuming that the populations are normal, test at the 0.05 level of significance whether the two methods of analysis give, on the average, the same result.
Answers: 3
Mathematics, 21.06.2019 18:50
Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!
Answers: 1
Mathematics, 22.06.2019 02:30
Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if it’s width were increased to 12 feet?
Answers: 2
Mathematics, 22.06.2019 03:30
Adan has decided to purchase an $9000 car. he plans on putting 20% down toward the purchase and financing the rest at 7.9% interest rate for 3 years. find his monthly payment a) $225.29 b) $298.81 c) $204.78 d) $236.89
Answers: 1
Mathematics, 22.06.2019 05:00
Two trains leave a station on different tracks. the tracks make an angle of 130°, with the station as a vertex. the first train travels 100 km and makes its first stop at point a, while the second train travels 200 km and makes it first stop at point b. how far apart are the trains when both are at their first stop? round the answer to the nearest integer. a) 65 km b) 139 km c) 224 km d) 275 km
Answers: 2
Five samples of a ferrous-type substance are to be used to determine if there is a difference betwee...
History, 30.08.2019 15:20
Social Studies, 30.08.2019 15:20
English, 30.08.2019 15:20
History, 30.08.2019 15:20
Chemistry, 30.08.2019 15:20
English, 30.08.2019 15:20
Physics, 30.08.2019 15:20
English, 30.08.2019 15:20
Physics, 30.08.2019 15:20
Business, 30.08.2019 15:20
Advanced Placement (AP), 30.08.2019 15:20
Mathematics, 30.08.2019 15:20
Mathematics, 30.08.2019 15:20