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() There is a 5% chance that the mean reading speed of a random sample of 20 second grade students will exceed what value? There is a 5% chance that the mean reading speed of a random sample of 20 second grade students will exceed wpm. (Round to two decimal places as needed.)

() There is a 5% chance that the mean reading speed of a random sample of 20 second grade students will exceed what value? There is a 5% chance that the mean reading speed of a random sample of 20 second grade students will exceed wpm. (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The reading speed of second grade students in a large city is approximately normal, with a mean of 90 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f). O D. Increasing the sample size increases the probability because o, decreases as n increases. (e) A teacher instituted a new reading program at school. After 10 weeks in the program, it was found that the mean reading speed of a random sample of 19 second grade students was 92.3 wpm. What might you conclude based on this result? Select the correct choice below and fill in the answer boxes within your choice. (Type integers or decimals rounded to four decimal places as needed.) A. A mean reading rate of 92.3 wpm is not unusual since the probability of obtaining a result of 92.3 wpm or more is 0.1587 . This means that we would expect a mean reading rate of 92.3 or higher from a population whose mean reading rate is 90 in 16 of every 100 random samples of size n 19 students. The new program is not abundantly more effective than the od program. O B. A mean reading rate of 92.3 wpm is unusual since the probability of obtaining a result of 92.3 wpm or more is This means that we would expect a mean reading rate of 92.3 or higher from a population whose mean reading rate is 90 in of every 100 random samples of size n= 19 students. The new program is abundantly more effective than the old program. (f) There is a 5% chance that the mean reading speed of a random sample of 20 second grade students will exceed what value? There is a 5% chance that the mean reading speed of a random sample of 20 second grade students will exceed wpm. (Round to two decimal places as needed.) Clear all Check answer Help me solve this View an example Get more help - 8:18 PM 4/18/2022 hp $12 insert delete f8 144 f9 f10 f1 prt sc f5 f6 f7 DII DDI f3 f4 米 esc & home @ 23 L. backspace 4 E T Y tab ente F H. J K caps lock A pause C V Σ %24
Transcribed Image Text:The reading speed of second grade students in a large city is approximately normal, with a mean of 90 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f). O D. Increasing the sample size increases the probability because o, decreases as n increases. (e) A teacher instituted a new reading program at school. After 10 weeks in the program, it was found that the mean reading speed of a random sample of 19 second grade students was 92.3 wpm. What might you conclude based on this result? Select the correct choice below and fill in the answer boxes within your choice. (Type integers or decimals rounded to four decimal places as needed.) A. A mean reading rate of 92.3 wpm is not unusual since the probability of obtaining a result of 92.3 wpm or more is 0.1587 . This means that we would expect a mean reading rate of 92.3 or higher from a population whose mean reading rate is 90 in 16 of every 100 random samples of size n 19 students. The new program is not abundantly more effective than the od program. O B. A mean reading rate of 92.3 wpm is unusual since the probability of obtaining a result of 92.3 wpm or more is This means that we would expect a mean reading rate of 92.3 or higher from a population whose mean reading rate is 90 in of every 100 random samples of size n= 19 students. The new program is abundantly more effective than the old program. (f) There is a 5% chance that the mean reading speed of a random sample of 20 second grade students will exceed what value? There is a 5% chance that the mean reading speed of a random sample of 20 second grade students will exceed wpm. (Round to two decimal places as needed.) Clear all Check answer Help me solve this View an example Get more help - 8:18 PM 4/18/2022 hp $12 insert delete f8 144 f9 f10 f1 prt sc f5 f6 f7 DII DDI f3 f4 米 esc & home @ 23 L. backspace 4 E T Y tab ente F H. J K caps lock A pause C V Σ %24
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