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We took a random sample of the weights of black cats and the weights of white cats. Assume that the weights of cats have

We took a random sample of the weights of black cats and the weights of white cats. Assume that the weights of cats have approximately a normal distribution, and that the population variances are unequal and unknown. Black 10 9 12 6 13 10 cats White 15 13 15 16 14 17 cats What is the point estimate of the difference between the two population means?

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