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Posted: **Mon Jul 11, 2022 11:37 am**

: The Sat Exam Is Designed So That Scores Are N 1000 100 You Are Asked To Use A Confidence Interval To Estimate The Popu 1 (23.1 KiB) Viewed 23 times

: The Sat Exam Is Designed So That Scores Are N 1000 100 You Are Asked To Use A Confidence Interval To Estimate The Popu 2 (18.32 KiB) Viewed 23 times

The SAT Exam is designed so that scores are N(1000,100). You are asked to use a Confidence Interval to estimate the population mean SAT score to check that the test is calibrated correctly. Find the minimum sample size needed to guarantee with 94% probability that your estimate is within Margin of Error 40 of the true population mean. Keep at least 4 decimals in Zc to avoid rounding errors. Enter a whole number. Submit Question
You plan to build a Confidence Interval to estimate the mean of a population for which the standard deviation is known to be 10.7. Find the minimum sample size needed to guarantee with 90% probability that your estimate is within Margin of Error 1.1 of the true population mean. Keep at least 4 decimal places in Zc to avoid rounding errors. Enter a whole number. Submit Question