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Could you show me how you complete this please? A father is trying to determine if...

Could you show me how you complete this please?

A father is trying to determine if bringing his kids to the store makes him spend more money at the store. Assume that his trips to the store are normally distributed but that the variances for with/without the kids are not equal. The last 4 trips with the kids, he spent $122.56 with a standard deviation of $13.12. The last 5 trips without the kids, he spent $108.31 with a standard deviation of $15.55. At the 0.01 level of significance, test if this father really does spend more money when his kids come with him.

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Math   Statistics-And-Probability   
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