Sapphire Island is open 7 days a week. The park has 8 ticket booths, and each booth has a ticket seller from 10:00am to 5pm. On
average, ticket sellers work 30 hours per week. Write and solve an equation that can be used to find t, the minimum number of ticket sellers the park needs.
1 answer:
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Answer:
The standard deviation of the sample mean differences is _5.23_
Step-by-step explanation:
We have a sample of a population A and a sample of a population B.
For the sample of population A, the standard deviation is
The sample size is:
.
For the sample of population B, the standard deviation is
The sample size is:
.
Then the standard deviation for the difference of means has the following form:
Finally