Problem set 2 -Micaela Martin

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College of Coastal Georgia *

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4500

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Biology

Date

Dec 6, 2023

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pdf

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4

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BIOL 4500 Statistics Problem Set # 2 Name: Micaela Martin 1. Assemble an SPSS data file with this information. Now, calculate the mean, median, variance, standard deviation, range, sample size and a 95% confidence interval for the mean of the male data and the female data (separately). Present these statistics here. Is the confidence interval you generated appropriate to use? (3 pts.) Statistics Male size (mm) Female size (mm) N Valid 16 16 Missing 0 0 Mean 77.3938 93.1250 Median 75.3500 92.0000 Std. Deviation 12.10683 10.41976 Range 40.00 34.70 Minimum 59.70 77.90 Maximum 99.70 112.60 - When looking at the statistics we can say that we need to use the 2. Produce a histogram of body size for males and females (separately). (4 pts.)
3. Now produce a bar graph that shows the mean for males and females together in the same graph. Add error bars to your bar chart under the “options” button. Make the error bars ± 1 standard deviation. The default is the 95% confidence interval. DO NOT USE THE CONFIDENCE INTERVAL FOR ERROR BARS!!! (4 pts.)
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