A local bank needs information concerning the savings account balances of its customers. A random sample of 15 accounts was chec
ked. The mean balance was $686.75 with a standard deviation of $256.20. Find a 98% confidence interval for the true mean. Assume that the account balances are normally distributed. A) ($532.86, $840.64) C) (S513.14, $860.36) B) (S544.87, $828.63) D) (S326.21, $437.90)
1 answer:
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The right answer is 19/20 which is A i hope this helps
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Is 6/2(2+1) 1 or 9? I will tell you why it should be one:
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