Report Properties
Owner: jdzuray
Created: Apr 24, 2019
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final lab

2. yes its greater than 600.

3. there is an increase so there shows change

4. there is change but it shows there is not enough so things do not support the evidence

5. yes because there is to much to show that there is that small of a chance

6. yes there is because it shows there was a change

7. yes becuase itheres a possitive change

Result 1: Two sample T hypothesis test final lab   [Info]

### Two sample T hypothesis test:

μ1 : Mean of Aud-Before
μ2 : Mean of Aud-After
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0
(without pooled variances)

Hypothesis test results:
DifferenceSample Diff.Std. Err.DFT-StatP-value
μ1 - μ291.87252915.41853194.242515.958579<0.0001

Result 2: Two sample T hypothesis test final lab   [Info]

### Two sample T hypothesis test:

μ1 : Mean of Vis-Before
μ2 : Mean of Vis-After
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0
(without pooled variances)

Hypothesis test results:
DifferenceSample Diff.Std. Err.DFT-StatP-value
μ1 - μ228.7177429.7118425232.878712.95698180.0034

Result 3: Two sample variance hypothesis test final lab   [Info]

### Two sample variance hypothesis test:

σ12 : Variance of Aud-Before
σ22 : Variance of Aud-After
σ1222 : Ratio of two variances
H0 : σ1222 = 1
HA : σ1222 ≠ 1

Hypothesis test results:
RatioNum. DFDen. DFSample RatioF-StatP-value
σ12221201242.82556982.8255698<0.0001

Result 4: Two sample variance hypothesis test final lab   [Info]

### Two sample variance hypothesis test:

σ12 : Variance of Vis-Before
σ22 : Variance of Vis-After
σ1222 : Ratio of two variances
H0 : σ1222 = 1
HA : σ1222 ≠ 1

Hypothesis test results:
RatioNum. DFDen. DFSample RatioF-StatP-value
σ12221231231.62249911.62249910.0077

Result 5: QQ Plot final lab   [Info]