Use the table to calculate the 95 % prediction interval for y at zo = 20 y 3 14 20 20 6. 27 28 8. 33 Regression Equation: âŷ = 3.6z + 3.866667 Σ Σ Degrees of Freedom Prediction Interval for y Standard Error Margin of Error n(zo - )² n(Ez²) – (Ez)² S = (Ey²) – 6. (Ey) – m(Exy) E = t. Se 1+ n – 2 ý-E

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Use the table to calculate the 95 % prediction interval for y at zo = 20
y
3
14
4
20
20
27
7
28
8
33
Regression Equation: ŷ = 3.6z + 3.866667
Σ
Σν
Degrees
of
Freedom
Prediction Interval
for y
Standard Error
Margin of Error
n(zo – 7)
n(Ez²) – (Ez)²,
(Ey²) – 6. (Ey) – m(Exy)
1
E = t. · Se· 1+
n - 2 ý - E <y<ŷ+E
S, =
n - 2
a. Standard Error S, =
(3 decimal places)
b. Mean =
c. Critical Value t.
(use 4 decimal places)
Round the following to 3 decimal places
d. Margin of Error E-
Transcribed Image Text:Use the table to calculate the 95 % prediction interval for y at zo = 20 y 3 14 4 20 20 27 7 28 8 33 Regression Equation: ŷ = 3.6z + 3.866667 Σ Σν Degrees of Freedom Prediction Interval for y Standard Error Margin of Error n(zo – 7) n(Ez²) – (Ez)², (Ey²) – 6. (Ey) – m(Exy) 1 E = t. · Se· 1+ n - 2 ý - E <y<ŷ+E S, = n - 2 a. Standard Error S, = (3 decimal places) b. Mean = c. Critical Value t. (use 4 decimal places) Round the following to 3 decimal places d. Margin of Error E-
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