Question: A brochure inviting subscriptions for a new diet program states that the participants are expected to lose over 27 pounds in five weeks. Suppose that,
A brochure inviting subscriptions for a new diet program states that the participants are expected to lose over 27 pounds in five weeks. Suppose that, from the data of the five-week weight losses of 65 participants, the sample mean and sample standard deviation are found to be 21.5 and 3.4, respectively. Could the statement in the brochure be substantiated on the basis of these findings? Test at the = .01 level. Give detailed explanation with solution.
From the following data find out whether there is any significant relationship between gender and preference of colour. Use Chi-square test and give detailed explanation with solution.
Preference for Colour\Gender
Male
Female
Pink
56
42
Black
67
39
Yellow
34
25
The following data has mid term marks and end term marks of 9 students. Maximum marks for both mid term marks as well as end term marks is 100. Calculate regression line between mid term marks and end term marks using below dataset. Give detailed explanation with solution.
Student Roll No.
1
2
3
4
5
6
7
8
9
Mid Term Marks
67
59
73
63
89
78
64
28
89
End Term Marks
55
42
80
83
76
67
63
33
58
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