Statistics Solutions

[Solved] A fabricant of analgesics is morally obliged to put its products in containers which are resistant to children. But many of their sales are made

Question: A fabricant of analgesics is morally obliged to put its products in containers which are resistant to children. But many of their sales are made to older people who could also have problems to open the containers. Two designs are proposed which are different in the containers and they wish to analyze which one would be more convenient to use. They took 40 clients which are older people, they opened both containers and the time to open them was registered in seconds.


The data is presented:

Design 1 Design 2
100 138
52 56
72 55
37 30
21 38
31 37
46 49
18 21
127 75
56 50
14 17
34 37
28 53
11 20
58 53
79 71
23 33
14 21
16 18
19 28
13 19
29 35
43 44
28 44
25 39
59 62
31 51
19 23
42 46
19 26
31 44
34 36
11 18
32 28
45 57
18 21
39 52
27 25
30 28
47 34
  1. Make a t test for the population related to significance level of 0.05 to prove that the design 1 requires less time mean (average) to open. Write all the required steps to make the test of hypothesis.
  2. make the same test using Minitab.
  3. The assumption in which the test is based is fulfilled? Verify using Minitab.

Price: $2.99
Solution: The downloadable solution consists of 4 pages
Deliverable: Word Document


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