Let x be a random variable that represents the average daily temperature (in degrees Fahrenheit) in July in a town in Colorado. The x distribution has a mean of approximately 75F and standard deviation of approximately 8F. A 20-year study (620 July days) gave the entries in the rightmost column of the following table.

I	II	III	IV
Region under Normal Curve	xF	Expected % from Normal Curve	Observed Number of Days in 20 Years
3 x < 2	51 x < 59	2.35%	15
2 x <	59 x < 67	13.5%	79
x <	67 x < 75	34%	217
x < +	75 x < 83	34%	224
+ x < + 2	83 x < 91	13.5%	75
+ 2 x < + 3	91 x < 99	2.35%	10

A) Find the value of the chi-square statistic for the sample. (Round the expected frequencies to at least three decimal places. Round the test statistic to three decimal places.)