Two different analytical tests can be used to determine the level of impurity of steel alloys. Eight specimens are tested using both procedures and the results are shown in the following tabulation:
Specimen |
Test1 |
Test 2 |
1 |
1.2 |
1.4 |
2 |
1.3 |
1.7 |
3 |
1.5 |
1.5 |
4 |
1.4 |
1.3 |
5 |
1.7 |
2.0 |
6 |
1.8 |
2.1 |
7 |
1.4 |
1.7 |
8 |
1.3 |
1.6 |
Two different analytical tests can be used to determine the level of impurity of steel alloys....
2. In a metallurgy lab, there are two different analytical tests that can be used to determine the impurity level in steel alloys. The engineer believe that Test 1 will capture more impurities in the specimen than Test 2. Eight specimens are tested using both procedures, and the results are shown in the following tabulation. Using 5% significance, investigate if the engineer's assumption if correct. Specimen Test 1 Test 2 1.9 1.7 1.6 1.5 1.5 1.3 2.0 1.8 2.1 1.3...
and with minitab please. 2. In a metallurgy lab, there are two different analytical tests that can be used to determine the impurity level in steel alloys. The engineer believe that Test 1 will capture more impurities in the specimen than Test 2. Eight specimens are tested using both procedures, and the results are shown in the following tabulation. Using 5% significance, investigate if the engineer's assumption if correct. Specimen Test 1 Test 2 1.7 2.0 1.6
Problem Scenario: Following is a problem description. For all hypothesis tests, you MUST state the statistical test you are using and use the P-VALUE METHOD through Microsoft Excel to make your decision. Show all steps, calculations, and work. For confidence intervals there is a specific Excel tool for each interval. Treat each part of the question as a separate problem -- we use the same data set but are answering different “research questions”. Many parts of cars are mechanically tested to...
A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find the time that children watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday) are shown below. Assume the population standard deviation is 0.7 for 1981 and 0.7 for today. At α=0.05, can you support the sociologist's claim? Complete parts (a) through (d) below. 1981 3.2 1.4...
A sociologist claims that children spent more time watching television in 1981 than children do today. A study was conducted in 1981 to find the time that children watched television on weekdays. Recently, a similar study was conducted. The results of these studies (in hours per weekday are shown below. Assume the population standard deviation is 0.7 for 1981 and 0.8 for today, At a = 0.05, can you support the sociologist's claim? Complete parts (a) through (d) below. Full...
READ THE DIRECTIONS PLEASE 6) Make your own word problem of the form of this problem. Your word problem should apply directly to biology major. State the null and alternative hypotheses and alpha (α) . (Since you don’t have any data, you need not actually conduct the hypothesis test). Please make a word problem stated above and answer all the parts based on the question below. 2 A data set includes data from student evaluations of courses. The summary statistics...