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Jlenok [28]
3 years ago
9

A telephone service representative believes that the proportion of customers completely satisfied with their local telephone ser

vice is different between the Northeast and the South. The representative's belief is based on the results of a survey. The survey included a random sample of 960 northeastern residents and 1100 southern residents. 56% of the northeastern residents and 44% of the southern residents reported that they were completely satisfied with their local telephone service. Find the 98% confidence interval for the difference in two proportions.
Step 1 of 3 : Find the point estimate that should be used in constructing the confidence interval.
Mathematics
1 answer:
Lelu [443]3 years ago
8 0
2531894628172727262626
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<h3>What is a probability?</h3>

A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

A theoretical probability is calculated without considering experiments, and we have that 3 out of the 5 numbers(1,3,5) and are odd, hence the theoretical probability is given by:

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For an experimental probability, we consider the experiments. Of the 6 spins, 3 resulted in an odd number, hence the experimental probability is given by:

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More can be learned about probabilities at brainly.com/question/14398287

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