statistics- hypothesys

NEW HAMPSHIRE WEATHER

How many months had no days with 0.5 inches or more of precipitation? What proportion of months had no days with 0.5 inches or more of precipitation? Construct a 95% confidence interval for the proportion of months that had no days with 0.5 inches or more of precipitation. Does this analysis make sense? 

95% confidence interval results: Outcomes in : DP05 Success : 0 p : Proportion of successes Method: Standard-Wald

Variable	Count	Total	Sample Prop.	Std. Err.	L. Limit	U. Limit
DP05	36	347	0.1037464	0.016369569	0.071662633	0.13583016

ANSWER:

There are 36 out of 347 months that had no days with 0.5 inches or more or precipitation.

There is a 10% of months that had no days with 0.5 inches or more of precipitation.

We are 95% confident that 7% to 13% of months have less than 0.5 inches of precipitation.

For New Hampshire weather this data makes sense, since New Hampshire is located in Northern USA and gets lots of snow and rain.

Now consider the variable EMXT (extreme maximum temperature). Construct a 99% confidence interval for the extreme maximum temperature for a month. Does this analysis make sense? 

99% confidence interval results: μ : Mean of variable

Variable	Sample Mean	Std. Err.	DF	L. Limit	U. Limit
EMXT	219.85591	4.9160252	346	207.12285	232.58897

ANSWER:

This data is stating that the average temperature is between 20celsius/68 Fahrenheit to 23 Celsius/73 Fahrenheit. I don’t think this data makes sense, since New Hampshire has cold weather so for most months out of the year it is very cold…