Fall Quiz 5 study

Fall Quiz 5 study - STAT 250 Fall 2008 Quiz 5 Please put...

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STAT 250 Fall 2008 Quiz 5 Please put your answers in the spaces provided. 1. Scientists from the University of Antwerp were interested in quantifying the number of tongue flicks in juvenile lizards as an indication of a response of these juvenile lizards to the chemical cues of a viper snake. Seventeen juvenile lizards were exposed to the chemical cues of the viper snake. Their responses, in number of tongue flicks per 20 minutes, were recorded with a sample mean of 428.6 tongue flicks. Assume the population standard deviation is 190.0 tongue flicks. Assume the sampleof 17 juvenile lizards is from a normal population. a. Construct and interpret the 95% Confidence Interval for the mean number of tongue flicks. Put answer in the spaces provided: The mean number of tongue flicks of a juvenile lizard in response to the chemical cues of a viper snake is estimated to be between __ 338.3 ___ tongue flicks and __ 518.9 __ tongue flicks.( __ 95% __ CI) b. Determine the smallest sample size necessary so that the margin of error will be
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Fall Quiz 5 study - STAT 250 Fall 2008 Quiz 5 Please put...

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