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School

American Military University *

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Course

302

Subject

Statistics

Date

Apr 3, 2024

Type

png

Pages

Uploaded by AdmiralWildcatPerson1030

12:11AM Wed Mar 20 ull 5G¥ 100% [@42) < Back d \VEEU QSN Gl [To [N @1 T=Ted ¢ Homm Question 1 1/ 1 point The population standard deviation for the height of college basketball players is 3 inches. If we want to estimate a 99% confidence interval for the population mean height of these players with a 0.5 margin of error, how many randomly selected players must be surveyed? (Round up your answer to nearest whole number) Answer: 239 v ¥ Hide question 1 feedback Z-Critical Value = NORM.SINV(.995) = 2.575 SD? x 72 ME? 32 % 2.5752 57 Question 2 0/ 1 point A researcher would like to estimate the proportion of all children that have been diagnosed with Autism Spectrum Disorder (ASD) in their county. They are using 95% confidence level and the CDC national estimate that 1 in 68 = 0.0147 children are diagnosed with ASD. What sample size should the researcher use to get a margin of error to be within 2%? Round up to the nearest integer. Answer 141.27 X (140) V¥ Hide question 2 feedback Z-Critical Value = NORM.S.INV(.975) = 1.96 n=

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