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Author Question: A local bank needs information concerning the savings account balances of its customers. A random ... (Read 85 times)

EY67

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on: Jul 25, 2018
A local bank needs information concerning the savings account balances of its customers. A random sample of 15 accounts was checked.
 
  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. Round to the nearest cent.
  A) (326.21, 437.90 ) B) (238.23, 326.41 ) C) (513.17, 860.33 ) D) (487.31, 563.80 )

Question 2

For nominal data, we cannot set up inequalities.
 
  Indicate whether the statement is true or false


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sylvia

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Reply #1 on: Jul 25, 2018
Answer to Question 1

C

Answer to Question 2

TRUE


EY67

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Reply #2 on: Jul 25, 2018
Thank you!


sylvia

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Reply #3 on: Jul 25, 2018
Always glad to help...


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