Construct a 90% confidence interval for the mean number of letter sounds identified in one minute. Round the answers to two decimal places. A 90% confidence interval for the mean number of letter sounds identified in one minute is <<μ
Construct a 90% confidence interval for the mean number of letter sounds identified in one minute. Round the answers to two decimal places. A 90% confidence interval for the mean number of letter sounds identified in one minute is <<μ
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
Related questions
Question
Sound it out: Phonics is an instructional method in which children are taught to connect sounds with letters or groups of letters. A sample of
141
first-graders who were learning English were asked to identify as many letter sounds as possible in a period of one minute. The average number of letter sounds identified was
34.09
with a standard deviation of
23.44
.
Part: 0 / 2
0 of 2 Parts Complete
Part 1 of 2
(a) Construct a
90%
confidence interval for the
A
90%
<<μ
|
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