Answer:
It's 22
Step-by-step explanation:
41-19=22
The attachment shows what to do? I hope same problem different people
Using the confidence interval, it is found that the correct option is:
There is convincing evidence because the entire interval is above 0.
<h3>When does a confidence interval for the difference of proportions gives convincing evidence that there is a difference?</h3>
It gives convincing evidence when 0 is not part of the confidence interval.
In this problem, the interval is (0.02, 0.38), which does not contain 0, hence the correct option is:
There is convincing evidence because the entire interval is above 0.
More can be learned about confidence intervals at brainly.com/question/25890103
<span>Your expenses exceed your income. You should cut back your B. variable costs.
Since this isn't your fixed cost that you pay every month, you should try and cut back these, so as to save some money and stop your expenses from exceeding your income.
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Answer:
The minimum sample size is
Step-by-step explanation:
From the question we are told that
The margin of error is
Given that the confidence level is 99% then the level of significance is evaluated as
Next we obtain the critical value of from the normal distribution table
The value is
Now let assume that the sample proportion is
hence
=>
Generally the sample size is mathematically represented as