R help - Feb 2008 - Help, Statistics Question. Testing for equality of frequncies of an event

Hi All,

I have a basic statistics question you might be able to help.

I have some data collected within a single population (say of chronic illness)
over a period of time (number under observation is constant, say 100 subjects).

The question is how could I test whether the frequency of an event (say hospital
admission) over one period is no different to other.

My data looks like this

Week             No of Events (hospital admissions)
1                23
2                26
3                46
4                23
5                45
6                58
7                34

The hypothesis : The frequency of events (hospital admissions) during the period
covering weeks 3 and 4 is not different to any other weeks.

Many Thanks for your help.

RA

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<si.fu at ntlworld.com> wrote in
news:20080215101854.SIPW29112.aamtaout04-winn.ispmail.ntl.com at smtp.ntlw
orld.com: 
> Hi All,
> 
> I have a basic statistics question you might be able to help.
> 
> I have some data collected within a single population (say of
> chronic illness) over a period of time (number under observation is
> constant, say 100 subjects). 
> 
> The question is how could I test whether the frequency of an event
> (say hospital admission) over one period is no different to other. 
> 
> My data looks like this
> 
> Week             No of Events (hospital admissions)
> 1                23
> 2                26
> 3                46
> 4                23
> 5                45
> 6                58
> 7                34
> 
> The hypothesis : The frequency of events (hospital admissions)
> during the period covering weeks 3 and 4 is not different to any
> other weeks. 

?glm

With family = poisson

-- 
David Winsemius