Question

In: Statistics and Probability

1. drawn bell shaped curved showing rejected/ non rejection with an alpha value of 0.05

2. determine regression of the line equation y=bx+a

3. Find a and b

4. let 20 be x and what it indicated

5. Then set it up for 95% prediction interval

x	y	xy	x^2	y^2
19	7	133	361	49
23	10	230	529	100
25	3	75	625	9
15	12	180	225	144
67	4	268	4489	16
54	2	108	2916	4
68	2	136	4624	4
21	4	84	441	16
14	8	112	196	64
17	7	119	289	49
48	3	144	2304	9
18	6	108	324	36
=389	=68	=1697	=17323	=500

Expert Solution

We have to find

1. drawn bell shaped curved showing rejected/ non rejection with an alpha value of 0.05

2. determine regression of the line equation y=bx+a

3. Find a and b

4. let 20 be x and what it indicated

Answers:

1)

We plot the bell shape curve of response variable y by manually as well as using excel,

for the plot the value of y and corresponding probablity distribution is

y	2	2	3	3	4	4	6	7	7	8	10	12
Distribution	0.064852	0.064852	0.087868	0.087868	0.108162	0.108162	0.122906	0.113455	0.113455	0.095151	0.050188	0.018036

Plot:

orchestra answered 3 years ago

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