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Author Question: The head circumference is measured for 25 girls and their twin sisters. What is the value of the ... (Read 233 times)

penza

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on: Jul 24, 2018
The head circumference is measured for 25 girls and their twin sisters. What is the value of the multiplier t for a 90 confidence interval for the difference in mean head circumference between girl twins?
 a. 1.68
  b. 2.02
  c. 1.71
  d. 2.06

Question 2

In each situation, indicate whether it would make more sense to find a confidence interval for the population parameter or to conduct a hypothesis test for a specific null value. If your answer is a hypothesis test, specify the null value that you would test. Dyslexia is a broad term defining a learning disability that impairs a person's ability to read, speak, and spell. It is believed that dyslexia can affect between 5 to 10 percent of the population although there have been no studies to indicate an accurate percentage.


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aburgess

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Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

Confidence interval


penza

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Reply 2 on: Jul 24, 2018
YES! Correct, THANKS for helping me on my review

duy1981999

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Reply 3 on: Yesterday
Excellent

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