The reading speed of second grade students in a large city is approximately normal, with a mean of 91 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (D UD. IIICeasiy ure salipie Sie uecieases uie provduy velduse o, ICI eases as I HICIeases. OC. Increasing the sample size increases the probability because o- increases asn increases. D. Increasing the sample size increases the probability because o. decreases asn 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 93.2 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 93.2 wpm is unusual since the probability of obtaining a result of 93.2 wpm or more is| This means that we would expect a mean reading rate of 93.2 or higher from a population whose mean reading rate is 91 inof every 100 random samples of size n=21 students. The new program is abundantly more effective than the old program. O B. Amean reading rate of 93.2 wpm is not unusual since the probability of obtaining a result of 93.2 wpm or more is . This means that we would expect a mean reading rate of 93.2 or higher from a population whose mean reading rate is 91 in of every 100 random samples of size n=21 students. The new program is not abundantly more effective than the old program. (1,1) More Clear all Check answer Madio
The reading speed of second grade students in a large city is approximately normal, with a mean of 91 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (D UD. IIICeasiy ure salipie Sie uecieases uie provduy velduse o, ICI eases as I HICIeases. OC. Increasing the sample size increases the probability because o- increases asn increases. D. Increasing the sample size increases the probability because o. decreases asn 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 93.2 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 93.2 wpm is unusual since the probability of obtaining a result of 93.2 wpm or more is| This means that we would expect a mean reading rate of 93.2 or higher from a population whose mean reading rate is 91 inof every 100 random samples of size n=21 students. The new program is abundantly more effective than the old program. O B. Amean reading rate of 93.2 wpm is not unusual since the probability of obtaining a result of 93.2 wpm or more is . This means that we would expect a mean reading rate of 93.2 or higher from a population whose mean reading rate is 91 in of every 100 random samples of size n=21 students. The new program is not abundantly more effective than the old program. (1,1) More Clear all Check answer Madio
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Part e
Transcribed Image Text:The reading speed of second grade students in a large city is approximately normal, with a mean of 91 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f).
...
UD. IICreasing uie Sampie SIze decieases ihe provabimy Decause 0, INcieases as i
II IICIeases.
C. Increasing the sample size increases the probability because
increases asn increases.
D. Increasing the sample size increases the probability because
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 21 second grade students was 93.2 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 93.2 wpm is unusual since the probability of obtaining a result of 93.2 wpm or more is This means that we would expect a mean reading rate of 93.2 or higher from a
population whose mean reading rate is 91 in of every 100 random samples of size n= 21 students. The new program is abundantly more effective than the old program.
O B. A mean reading rate of 93.2 wpm is not unusual since the probability of obtaining a result of 93.2 wpm or more is
This means that we would expect a mean reading rate of 93.2 or higher from a
population whose mean reading rate is 91 in
of every 100 random samples of size n=21 students. The new program is not abundantly more effective than the old program.
(1,1)
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