**Name/Notes** |
**Owner** |
**Created** |
**Size** |
**Views** |

μ _{1} : Mean of #times dyed hair μ _{2} : Mean of # times dyed hair μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} < 0 (with pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | -2.407775 | 1.8038918 | 68 | -1.3347668 | 0.0932 |
**#11 Two sample T hypothesis test** | figueroa-bonillam | Apr 17, 2019 | 1KB | 0 |

**Boxplot Two sample T hypothesis test** | loveothersasyourself | Apr 13, 2019 | 174B | 3 |

μ _{1} : Mean of Age where Sex=M μ _{2} : Mean of Age where Sex=F μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} ≠ 0 (with pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | -7.0958606 | 2.0518145 | 256 | -3.4583343 | 0.0006 |
**Two sample T hypothesis test of sex and age** | loveothersasyourself | Apr 13, 2019 | 1KB | 3 |

μ _{1} : Mean of Hours of sleep μ _{2} : Mean of Hours of sleep μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} ≠ 0 (with pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | 0 | 0.10437234 | 382 | 0 | 1 |
**Two sample T hypothesis test** | mrsamazing112 | Apr 13, 2019 | 1KB | 4 |

μ _{1} : Mean of Hours workedHours sleepRestedAge RangeData collector μ _{2} : Mean of var2 μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} ≠ 0 (with pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | 39.345833 | 1.2536769 | 382 | 31.384348 | <0.0001 |
**Two sample T hypothesis test** | mrsamazing112 | Apr 13, 2019 | 1KB | 7 |

μ _{1} : Mean of Hours of sleep μ _{2} : Mean of Hours workedHours sleepRestedAge RangeData collector μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} ≠ 0 (without pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | -39.345833 | 1.2536769 | 192.33012 | -31.384348 | <0.0001 |
**Two sample T hypothesis test** | mrsamazing112 | Apr 11, 2019 | 1KB | 4 |

μ _{1} : Mean of hours where sex = F μ _{2} : Mean of hours where sex = M μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} ≠ 0 (without pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | -0.51535948 | 0.20308899 | 91.235159 | -2.5376042 | 0.0129 |
**Two sample T hypothesis test** | jasskaya | Apr 10, 2019 | 1KB | 8 |

μ _{1} : Mean of hours where sex = F μ _{2} : Mean of hours where sex = M μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} ≠ 0 (without pooled variances)
Sample | n | Mean | Std. dev. |
---|
hours where sex = F | 204 | 6.5735294 | 1.4458997 | hours where sex = M | 54 | 7.0888889 | 1.2937683 |
**Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | -0.51535948 | 0.20308899 | 91.235159 | -2.5376042 | 0.0129 |
**Two sample T hypothesis test** | jasskaya | Apr 10, 2019 | 2KB | 11 |

μ _{1} : Mean of GPA Under 25 μ _{2} : Mean of GPA Over 25 μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} ≠ 0 (without pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | 0.014616935 | 0.11242261 | 68.543102 | 0.13001775 | 0.8969 |
**Two sample T hypothesis test** | kyliemendoza99 | Apr 9, 2019 | 1KB | 4 |

μ _{1} : Mean of SNS Under 25 μ _{2} : Mean of SNS Over 25 μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} > 0 (without pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | 0.29139785 | 0.53685381 | 59.646031 | 0.54278809 | 0.2946 |
**Two sample T hypothesis test** | kyliemendoza99 | Apr 9, 2019 | 1KB | 3 |

μ _{1} : Mean of Number of Genres Liked where Type=Introvert μ _{2} : Mean of Number of Genres Liked where Type=Extrovert μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} < 0 (without pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | -0.010372466 | 0.22220073 | 212.61906 | -0.04668061 | 0.4814 |
**Two sample T hypothesis test** | charlesbythesea7 | Apr 8, 2019 | 1KB | 5 |

μ _{1} : Mean of var1 μ _{2} : Mean of var2 μ _{1} - μ _{2} : Difference between two means (without pooled variances) **80% confidence interval results:**
Difference | Sample Diff. | Std. Err. | DF | L. Limit | U. Limit |
---|
μ_{1} - μ_{2} | 0.2234 | 0.028175431 | 15.755333 | 0.18571109 | 0.26108891 |
**Two sample T confidence interval** | a1793c1f-582e-4e82-8af5-851a3af96e7c-133255_d2l_snhumlp | Apr 7, 2019 | 1KB | 8 |

μ _{1} : Mean of var1 μ _{2} : Mean of var2 μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 7 H _{A} : μ _{1} - μ _{2} ≠ 7 (without pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | -1156.64 | 173.42982 | 39.844246 | -6.7095728 | <0.0001 |
**Two sample T hypothesis test** | bcd9eac4-38da-4210-98be-740e75a6d779-47818_d2l_snhumlp | Apr 7, 2019 | 1KB | 6 |

μ _{1} : Mean of Olathe Kansas μ _{2} : Mean of Columbia Missouri μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 5 H _{A} : μ _{1} - μ _{2} ≠ 5 (without pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | -4.5 | 63.547227 | 1.6704186 | -0.14949512 | 0.8972 |
**Two sample T hypothesis test** | bcd9eac4-38da-4210-98be-740e75a6d779-47818_d2l_snhumlp | Apr 7, 2019 | 1KB | 8 |

μ _{1} : Mean of Olathe Kansas μ _{2} : Mean of Columbia Missouri μ _{1} - μ _{2} : Difference between two means H _{0} : μ _{1} - μ _{2} = 0 H _{A} : μ _{1} - μ _{2} ≠ 0 (without pooled variances) **Hypothesis test results:**
Difference | Sample Diff. | Std. Err. | DF | T-Stat | P-value |
---|
μ_{1} - μ_{2} | 0 | 76.367532 | 2 | 0 | 1 |
**Two sample T hypothesis test** | bcd9eac4-38da-4210-98be-740e75a6d779-47818_d2l_snhumlp | Apr 7, 2019 | 1KB | 6 |