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Showing 1 to 15 of 122 results matching Two sample Z
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Two sample Z hypothesis test:


μ1 : Mean of var4 (Std. dev. not specified)
μ2 : Mean of var5 (Std. dev. not specified)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Sample statistics:


SamplenMeanStd. dev.
var4307.14766673.2874575
var5306.4562.5922612

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ230300.691666670.764355830.904901410.3655

Shapiro-Wilk normality test results:


SamplenStatP-Value
var4300.834641110.0003
var5300.88263310.0032
Two sample Z hypothesis test
kidibuyDec 10, 20183KB0

Two sample Z hypothesis test:


μ1 : Mean of Dutchbros Price/ounce (Std. dev. not specified)
μ2 : Mean of Starbucks Price/ounce (Std. dev. not specified)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ288-0.170.016903085-10.057336<0.0001
Two sample Z hypothesis test
renabayleyDec 6, 20181KB3

Two sample Z hypothesis test:


μ1 : Mean of 21&Under (Std. dev. not specified)
μ2 : Mean of Over21 (Std. dev. not specified)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ231314.90322583.73506971.31275350.1893
Two sample Z hypothesis test
canolatDec 3, 20181KB1

Two sample Z hypothesis test:


μ1 : Mean of var1 (Std. dev. not specified)
μ2 : Mean of var2 (Std. dev. not specified)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Sample statistics:


SamplenMeanStd. dev.
var13164.7096773.2577451
var23165.3548392.576152

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ23131-0.645161290.74594522-0.864890980.3871
Two sample Z hypothesis test
tshanayDec 3, 20182KB6

Two sample Z confidence interval:


μ1 : Mean of 1 of 4 2016 (Std. dev. not specified)
μ2 : Mean of 1 of4 2017 (Std. dev. not specified)
μ1 - μ2 : Difference between two means

95% confidence interval results:
Differencen1n2Sample meanStd. err.L. limitU. limit
μ1 - μ290900.288888892.8231009-5.24428725.822065
Two sample Z confidence interval
sthomas91Nov 30, 20181KB5

Two sample Z hypothesis test:


μ1 : Mean of 1 of 4 2016 (Std. dev. not specified)
μ2 : Mean of 1 of4 2017 (Std. dev. not specified)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ290900.288888892.82310090.102330340.9185
Two sample Z hypothesis test
sthomas91Nov 30, 20181KB4
Two sample Z summary hypothesis test:
μ1 : Mean of population 1 (Std. dev. = 0.731437)
μ2 : Mean of population 2 (Std. dev. = 0.316228)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 < 0

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ254-0.80.36331812-2.20192710.0138
Two sample Z summary hypothesis test
kirthi12Oct 29, 20181KB17
Two sample Z confidence interval:
μ1 : Mean of P1 (Std. dev. not specified)
μ2 : Mean of P2 (Std. dev. not specified)
μ1 - μ2 : Difference between two means

90% confidence interval results:
Differencen1n2Sample meanStd. err.L. limitU. limit
μ1 - μ22228.568.441581-84.076383141.07638
Two sample Z confidence interval Week 5 Discussion
9f0cef4c-1e66-408e-9185-a0eaa2f84177-86291_d2l_snhumlpAug 1, 20181KB33
Two sample Z hypothesis test:
μ1 : Mean of var1 (Std. dev. not specified)
μ2 : Mean of var3 (Std. dev. not specified)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Sample statistics:
SamplenMeanStd. dev.
var130453.179.358354
var330503.33333153.87732

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ23030-50.23333331.610113-1.58915380.112
Two sample Z hypothesis test v-1,3
anniaconcepcionMay 22, 20182KB84
Two sample Z hypothesis test:
μ1 : Mean of var1 (Std. dev. = 0.05)
μ2 : Mean of var2 (Std. dev. = 0.05)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Sample statistics:
SamplenMeanStd. dev.Specified std. dev.
var130453.179.3583540.05
var230419.1666768.5641320.05

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ2303033.9333330.0129099442628.4647<0.0001
Two sample Z hypothesis test
anniaconcepcionMay 22, 20182KB72
Two sample Z summary confidence interval:
μ1 : Mean of population 1 (Std. dev. = 0.05)
μ2 : Mean of population 2 (Std. dev. = 0.05)
μ1 - μ2 : Difference between two means

95% confidence interval results:
Differencen1n2Sample meanStd. err.L. limitU. limit
μ1 - μ2303033.933330.01290994433.90802733.958633
Two sample Z summary confidence interval
anniaconcepcionMay 22, 20181KB60
Two sample Z hypothesis testaldwin_yvesMay 14, 2018174B56
Two sample Z summary hypothesis test:
μ1 : Mean of population 1 (Std. dev. = 1.04)
μ2 : Mean of population 2 (Std. dev. = 0.5)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ225253.290.2307899514.255387<0.0001

Sample Statistics:
SamplenMeanStd. Dev.
Population 1256.71.04
Population 2253.410.5
Two sample Z summary hypothesis test
fieldhockeyq11Apr 27, 20182KB74
Two sample Z hypothesis test:
μ1 : Mean of Hours Slept (Std. dev. not specified)
μ2 : Mean of GPA (Std. dev. not specified)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ225253.083040.240731212.806982<0.0001
Two sample Z hypothesis test
fieldhockeyq11Apr 27, 20181KB74
Two sample Z hypothesis test:
μ1 : Mean of var1 (Std. dev. = 0.43568501)
μ2 : Mean of var2 (Std. dev. = 0.54854119)
μ1 - μ2 : Difference between two means
H0 : μ1 - μ2 = 0
HA : μ1 - μ2 ≠ 0

Hypothesis test results:
Differencen1n2Sample meanStd. err.Z-statP-value
μ1 - μ2813-0.325961540.2165032-1.50557380.1322
Two sample Z hypothesis test-GPAs
pmowenApr 7, 20181KB74

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