I need to do a Chi Square Test for the following data. \"The null hypothesis wou
ID: 3218165 • Letter: I
Question
I need to do a Chi Square Test for the following data.
"The null hypothesis would be that the body lengths of female and male brine shrimps are not different.Hence, the expected value would be the mean of the entire population (i.e. mean of the means of female and male brine shrimps) = 6.128 mmThe observed values are the means of the female and male brine shrimps = 6.051 mm and 6.204 mm, respectively."
(Not an expert in excel.)
Female Brine Shrimp Male Brine Shrimp (m m) (mm) 2.25 2.81 3 2.55 2.94 3.29 2.94 3.3 3.6 3.95 3.98 4.81 4.1 4.12 4.3 5.08 4.3 5.15 4.49 4.65 5.56 5.82 5.97 5.06 5.99 5.24 5.37 5.63 6.54 5.69 6.69 6.8 6.36 6.37 6.37 6.41 6.49 6. 6. 7.02 69 7.05 7.18 7.01 7.19 7.09 7.69 8 7.24 752 7.53 8.29 7.87 8.35 7.87 7.87 8.74 8.0 8.8 8.02Explanation / Answer
The expected value would be the mean of the entire population (i.e. mean of the means of female and male brine shrimps) = 6.128 mm.
The observed values are the means of the female and male brine shrimps = 6.051 mm and 6.204 mm, respectively
Chisquare contribution values are
Chisquare test static value = 0.001910085
Chisquare critical value = 3.84 at 5% los and 1 df
Here Chisquare value , chisquare critical value, we accept H0
Thus, we conclude that the body lengths of female and male brine shrimps are not different
Oi Ei (Oi-Ei)^2/Ei 6.051 6.128 0.000967526 6.204 6.128 0.000942559 Total: 0.001910085