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sp2606 [1]
3 years ago
5

Weights of golden retriever dogs are normally distributed. Samples of weights of golden retriever​ dogs, each of size nequals​15

, are randomly collected and the sample means are found. Is it correct to conclude that the sample means cannot be treated as being from a normal distribution because the sample size is too​ small? Explain. Choose the correct answer below. A. ​Yes; the sample size must be over 30 for the sample means to be normally distributed. B. ​No; the original population is normally​ distributed, so the sample means will be normally distributed for any sample size. C. ​No; the samples are collected​ randomly, so the sample means will be normally distributed for any sample size. D. ​No; as long as more than 30 samples are​ collected, the sample means will be normally distributed.
Mathematics
1 answer:
FrozenT [24]3 years ago
5 0

Answer:

B.

Step-by-step explanation:

If the population, in this case, weights of golden retriever dogs, follows a normal distribution, then the sample will too, even if the sample size is lower than 30. You only have to worry about the sample size being too small when a problem doesn't explicitly say the distribution from which the samples are drawn is normally distributed.

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