Suppose that a sample of 200 (stored in ItemErr) is selected from a population of 10,000 items.

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Suppose that a sample of 200 (stored in ItemErr) is selected from a population of 10,000 items. Of these, 10 items are found to have the following errors:

Construct a 95% confidence interval estimate for the total difference in the population.

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Using PHStat Confidence Interval Estimate for the Total Difference Data Population Size 10000 Sample Size 200 Confidence Level 95 Intermediate Calculations Sum of Differences 20063 Average Difference in Sample 100315 Total Difference 100315 Standard Deviation of Differences 4998502 FPC Factor 0989999 Standard Error of the Total Diff ...View the full answer

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Amy O'Dirling

Hello! My name is Amy and I am very excited to meet you! I am a native of the beautiful state of North Carolina. I have a Bachelor's of Arts degree in Psychology and Child Developmental Psychology, a TESOL Advanced license and a TESOL Foundational license. I have been teaching both in and out of the traditional classroom for 16 years. I love teaching ESL and it has been amazing watching my students going from non- English speaking to virtually fluent! ESL is certainly a passion! My students have become like family to me and I feel so privileged to be able to teach them ESL. Outside of the classroom, I enjoy spending time with my husband, 4 kids and my 3 cats! We love to travel and I would love to visit China one day! I am looking forward to getting to know you!

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