Aiden buys a bag of cookies that contains 9 chocolate chip cookies, 8 peanut butter cookies, 8 sugar cookies and 9 oatmeal cooki
1 answer:
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Answer:
Emma can complete the calls alone in 6 days, which means she can complete of the calls in one day. So, Emma’s rate per day is
. Jackson can complete the calls alone in
days, which means he can complete
of the calls in one day. So, Jackson’s rate per day is
. Because they’re working together, the time,
, is the same for both.
Multiply across the table to find the part of the task each has completed. Use the equation work completed = (rate)(time) to fill in the last column cells.
Step-by-step explanation:
Answer:
The test statistic for this hypothesis test for a proportion is z=1.90.
Step-by-step explanation:
This is a hypothesis test for a proportion.
The claim is that the unemployment rate is less than 5%.
Then, the null and alternative hypothesis are:
The sample has a size n=1500.
The sample proportion is p=0.061.
The standard error of the proportion is:
Then, we can calculate the z-statistic as: