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You are planning to buy a cellphone with a good quality in order to attend the online class. The average price of 50 cellphones is

You are planning to buy a cellphone with a good quality in order to attend

the online class. The average price of 50 cellphones is Php13,500 with a margin

of error of Php 273.65 and a confidence level of 99%.

What is the lower limit?

What is the upper limit?

What is the confidence interval?

If you have P 13,100.00, is the amount lies within the confidence interval?

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