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A researcher was interested in comparing the heights of ninjas in two independent villages


A researcher was interested in comparing the heights of ninjas in two independent villages. A random sample of 9 ninjas from the Hidden Leaf Village has an average height of 64.744 inches, with a standard deviation of 2.192 inches. A random sample of 9 ninjas from the Hidden Sand Village has an average height of 62.556 inches, with a standard deviation of 2.697 inches. Determine a 90% confidence interval for the difference between the mean height of ninjas in the two villages. Round you answer to 3 decimal places. 

  • (1.875,2.501) 

  • (-0.276,4.652)

  • (0.160,4.216) 

  • (-1.214,5.590) 

  • (2.501,1.875)

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Answer #1

2.

SOLUTION :

ANSWER : (0.160, 4.216)

(option C)

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