Click here to open the distribution applet Two companies named PlayDisc and CsiDyalp sell CD's by claiming their lifetime is "super long". I've started to suspect they're actually made by the same manufacturer, meaning they have the same average lifespan and standard deviation. I bought some CD's from each company and got the following data: PlayDisc n=49 x=23 years s=3.27 years CsiDyalp n=67 x=21 years S=2.09 years Matched pairs sd=0.301 Pooled sd=2.652 Difference of sd=1.18 Perform a test of whether the means are different. Ho: 01-02, μ1-µ2 v HA: 01-02, μ1-µ2 · α= .07 t P-value= OCalculate the test statistic first Calculate the t-score Calculate the t-score Calculate the t-score ○ Calculate the t-score Submit Answer 0 0 OCalculate the test statistic first

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