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kondaur [170]
3 years ago
12

Tamara sold 92 drinks during her 2 hour shift at a festival food stand if she sold the same number of drinks each hour how many

cold drinks did she sell each hour
Mathematics
1 answer:
3241004551 [841]3 years ago
3 0
You first take 92/2 which equals 46.

she only worked 2 hours so that would be totally to 46 + 46 =92 so 


the 92 split in half is "46 cold drinks each hour."
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Let the bottles from machine 1 be the first population and the bottles from machine 2 be the second population.  

Then we have n_{1} = 25, \bar{x}_{1} = 2.04, \sigma_{1} = 0.010 and n_{2} = 20, \bar{x}_{2} = 2.07, \sigma_{2} = 0.015. The pooled estimate is given by  

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a. We want to test H_{0}: \mu_{1}-\mu_{2} = 0 vs H_{1}: \mu_{1}-\mu_{2} \neq 0 (two-tailed alternative).  

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-0.03\pm t_{0.025}0.012459\sqrt{\frac{1}{25}+\frac{1}{20}}

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