in a bag of red and yellow cookies the ratio of red cookies to Yellow cookies is 4 :5 if the bag contains 80 yellow cookies how
1 answer:
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Answer:
The confidence level is 0.98 and the significance is and
and the critical value using the table is:
And replacing we got:
Step-by-step explanation:
For this case we have the following info given:
represent the population deviation
the sample size
represent the sample mean
We want to find the margin of error for the confidence interval for the population mean and we know that is given by:
The confidence level is 0.98 and the significance is and
and the critical value using the table is:
And replacing we got: