Question

A random sample of 12 cats was collected to study the lifespan with the data listed below. Find the 87% confidence interval for the population mean. Round all values to two decimals. 13, 15, 18, 16, 8, 12, 13, 15, 8, 13, 12, 11. Provide your answer below.

Name: a random sample of 12 cats was collected to study the lifespan with the data listed below find the 87 confidence interval for the population mean round all values to two decimals 13 15 18 16 69409
Uploaded: 2023-09-15T05:07:28-08:00
Duration: 2 min 3 s
Channel: Ivan Kochetkov
Description: a random sample of 12 cats was collected to study the lifespan with the data listed below find the 87 confidence interval for the population mean round all values to two decimals 13 15 18 16 69409

          A random sample of 12 cats was collected to study the lifespan with the data listed below. Find the 87% confidence interval for the population mean. Round all values to two decimals. 13, 15, 18, 16, 8, 12, 13, 15, 8, 13, 12, 11. Provide your answer below.

Added by Alfonso C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Ivan Kochetkov

09/15/2023

Step 1

- Sample mean (x̄) = (13 + 15 + 18 + 16 + 8 + 12 + 13 + 15 + 8 + 13 + 12 + 11) / 12 = 13.25 - Sample standard deviation (s) = √[Σ(xi - x̄)² / (n-1)] = √[(0.1875 + 1.5625 + 20.25 + 6.25 + 30.25 + 0.0625 + 0.1875 + 1.5625 + 30.25 + 0.1875 + 0.0625 + 4.0625) / 11] = Show more…

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A random sample of 12 cats was collected to study the lifespan with the data listed below. Find the 87% confidence interval for the population mean. Round all values to two decimals. 13, 15, 18, 16, 8, 12, 13, 15, 8, 13, 12, 11. Provide your answer below.