Answer:
The number of rainfalls required to be included in the sample is 97.
Step-by-step explanation:
The information provided is:
Error = E = 0.1
Standard deviation = σ = 0.5
1 - α = 0.95
α = 0.05
The error formula is:
Compute the critical value as follows:
*Use the <em>z</em>-table for the critical value.
Compute the value of <em>n</em> as follows:
Thus, the number of rainfalls required to be included in the sample is 97.