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n********6
发帖数: 58 | 1 1） construct a statistical model to describe the following situation:
Customers arrive to a large ticket counter with k cash registers at
average rate N per hour. You have access to minute by minute customer
counts for only one cash register, n(t). Your job is to estimate the
number of customers going through all the registers with a single
minute resolution. That is, you need to model N(t) as a function of
n(t) and the known average value of N(t) over all time. Answer the
following questions:
1. What is your model? Why this model and not something better? What
are the assumptions you have made?
2. What is the expected value of N(t)? What is its variance?
2） Would an ARIMA model be a good starting point for modeling
temperature variations at a single location, reported with a minute
resolution for a year? | h***i
发帖数: 3844 | 2 seasonal arima model?
【在 n********6 的大作中提到】
: 1） construct a statistical model to describe the following situation:
: Customers arrive to a large ticket counter with k cash registers at
: average rate N per hour. You have access to minute by minute customer
: counts for only one cash register, n(t). Your job is to estimate the
: number of customers going through all the registers with a single
: minute resolution. That is, you need to model N(t) as a function of
: n(t) and the known average value of N(t) over all time. Answer the
: following questions:
: 1. What is your model? Why this model and not something better? What
: are the assumptions you have made?
| n********6
发帖数: 58 | 3 which problem?
【在 h***i 的大作中提到】
: seasonal arima model?
| h***i
发帖数: 3844 | 4 second
【在 n********6 的大作中提到】
: which problem?
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