(d) What effect does increasing the sample size have on the probability? Provide an explanation for this result. O A. Increasing the sample size increases the probability because o; increases as n increases. O B. Increasing the sample size increases the probability because o; decreases as n increases. OC. Increasing the sample size decreases the probability because a; decreases as n increases. OD. Increasing the sample size decreases the probability because o; increases 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 21 second grade students was 94.1 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.) O A. A mean reading rate of 94.1 wpm is not unusual since the probability of every 100 random samples of size n=21 students. The new program is not abundantly more effective than the old program. obtaining a result of 94.1 wpm or more is. This means that we would expect a mean reading rate of 94.1 or higher from a population whose mean reading rate is 92 in of O B. A mean reading rate of 94.1 wpm is unusual since the probability of obtaining a result of 94.1 wpm or more is. This means that we would expect a mean reading rate of 94.1 or higher from a population whose mean reading rate is 92 in every 100 random samples of size n=21 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 23 second grade students will exceed what value?
(d) What effect does increasing the sample size have on the probability? Provide an explanation for this result. O A. Increasing the sample size increases the probability because o; increases as n increases. O B. Increasing the sample size increases the probability because o; decreases as n increases. OC. Increasing the sample size decreases the probability because a; decreases as n increases. OD. Increasing the sample size decreases the probability because o; increases 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 21 second grade students was 94.1 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.) O A. A mean reading rate of 94.1 wpm is not unusual since the probability of every 100 random samples of size n=21 students. The new program is not abundantly more effective than the old program. obtaining a result of 94.1 wpm or more is. This means that we would expect a mean reading rate of 94.1 or higher from a population whose mean reading rate is 92 in of O B. A mean reading rate of 94.1 wpm is unusual since the probability of obtaining a result of 94.1 wpm or more is. This means that we would expect a mean reading rate of 94.1 or higher from a population whose mean reading rate is 92 in every 100 random samples of size n=21 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 23 second grade students will exceed what value?
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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Transcribed Image Text:(d) What effect does increasing the sample size have on the probability? Provide an explanation for this result.
O A. Increasing the sample size increases the probability because o, increases as n increases.
O B. Increasing the sample size increases the probability because o, decreases as n increases.
O C. Increasing the sample size decreases the probability because o, decreases as n increases.
O D. Increasing the sample size decreases the probability because o, increases 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 21 second grade students was 94.1 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.)
O A. A mean reading rate of 94.1 wpm is not unusual since the probability of obtaining a result of 94.1 wpm or more is
This means that we would expect a mean reading rate of 94.1 or higher from a population whose mean reading rate is 92 in
of every 100 random samples of size n= 21 students. The new program is not abundantly more effective than the old program.
O B. A mean reading rate of 94.1 wpm is unusual since the probability of obtaining a result of 94.1 wpm or more is
every 100 random samples of size n= 21 students. The new program is abundantly more effective than the old program.
This means that we would expect a mean reading rate of 94.1 or higher from a population whose mean reading rate is 92 in
of
(f) There is a 5% chance that the mean reading speed of a random sample of 23 second grade students will exceed what value?
Transcribed Image Text:every 100 random samples of size n=21 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 23 second grade students will exceed what value?
There is a 5% chance that the mean reading speed of a random sample of 23 second grade students will exceed
wpm. (Round to two decimal places as needed.)
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