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Which are people more likely to do accidentally, put colored clothes in with the white clothes...

Which are people more likely to do accidentally, put colored clothes in with the white clothes wash, or white clothes in with the colored clothes wash? Principia Martindale surveys 4800 people, and asks them to tell her over a month-long period how many items of mismatched clothes they put in their colored and white washes. She finds that on average people put 2.4 white clothes in with the colored wash (variance=4.1), and 4.8 colored clothes in with the white wash (variance=3.2). The sample distributions appear to be normally distributed. Do people put more whites in with coloreds, or more coloreds in with whites? one-sample z-test (single-sample z-test) repeated-measures t-test (i.e., dependent samples t-test) Independent-measures ANOVA Repeated-measures ANOVA (i.e., dependent samples ANOVA) two-way ANOVA

Solutions

Expert Solution

Solution:

Sample 1: white clothes in with the colored wash

Sample 2: colored clothes in with the white wash

Here n = sample size = 4800

The provided sample means are shown below:

Xˉ1​=2.4 and Xˉ2​=4.8

Also, the provided population variance are:

= 4.1 and = 3.2

Hence, standard deviations

σ1​=2.02 and σ2​=1.79

Done

milcah answered 1 year ago
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