Question

In a reading class students can read an average of 181 words per minute with a standard deviation of 18 words per minute. The bottom 25% of the class will be placed in a special helping class to assist them with reading strategies. What is the cut-off number of words per minute a student must be able to read in order to not be placed in the reading helping class?

Answer #1

Students who have completed a speed reading course have reading
speeds that are normally distributed with a mean of 950 words per
minute and a standard deviation equal to 200 words per minute. If
10 students are selected at random, what is the probability that at
most two of them would read at less than 850 words per minute?
0.22
0.64
0.36
0.78

Studies have shown that for all second grade students the
average reading speed is 90 words per minute with a standard
deviation of 10 words per minute. You take a sample of 34 second
graders and compute their average reading speed. What is the
probability that the average reading speed is between 95 and 100
words per minute?
a) Define a random variable to be used in the problem. State the
distribution of this variable, perform all necessary checks, and...

In the sixth grade of a school there are 35 students. The school
principal considers that the reading speed of the students has
approximately a normal distribution, with an average speed of 125
words per minute and a standard deviation of 24 words per
minute.
a. How many sixth graders will have a reading speed greater than
130 words per minute?
20 children
17 children
15 children
18 children
b. A child is selected at random. What is the probability...

1. The reading speed of second grade students is approximately
normal with a mean of 90 words per minute (wpm) and a standard
deviation of 10 wpm. A. What is the probability a randomly selected
student will read more than 95 words per minute? B: What is the
probability that a random sample of 12 second grade students
results in a mean reading rate of more than 95 words per minute? c:
What is the probability that a random sample...

The reading speed of second grade students in a large
city is approximately normal, with a mean of 89 words per minute
(wpm) and a standard deviation of 10 wpm. Complete parts (a)
through (f).
(a) What is the probability a randomly selected student in the
city will read more than 94 words per minute?
The probability is ___ (Round to four decimal places as
needed.)
(b) What is the probability that a random sample of 13 second
grade students...

Generally, the average typing speed is 54 words per minute (wp).
A professor wanted to see where his students stand compared to the
population. He tested 28 of his students and obtained the following
estimates: an average typing speed of 46 with a standard deviation
of 18. What can the professor conclude with α = 0.01?
a) What is the appropriate test statistic?
---Select--- na z-test One-Sample t-test Independent-Samples t-test
Related-Samples t-test
b)
Population:
---Select--- the professor typing speed average...

At school, students spend an average of 13.38 minutes per class
texting. Suppose the minutes spent texting in class are normally
distributed with a standard deviation of 3.27 minutes. What is the
probability that a randomly selected student spends more than 17
minutes texting in class?
a) 0.8665
b) 0.1335
c) 0.1515
d) 0.8485

Generally, the average typing speed is 56 words per minute (wp).
A professor wanted to see where his students stand compared to the
population. He tested 24 of his students and obtained the following
estimates: an average typing speed of 58 with a variance of 361.00.
What can the professor conclude with α = 0.01?
a) What is the appropriate test statistic?
---Select--- na z-test One-Sample t-test Independent-Samples t-test
Related-Samples t-test
Also state population and sample from choices below
Population:...

PLEASE READ THE ARTICLES ATTACHED AND ANSWER THE
FOLLOWING QUESTION. THE ARTICLES ARE BOTH LISTED
PLEASE PROVIDE DETAILED EXPLANATIONS.
PLEASE WRITE ONE REFLECTION COMBINING BOTH
ARTICLES.
The purpose of the Article Reflection is to deepen your
engagement with the topic of Epidemiology. It will give you the
opportunity to reflect on the current real-life epidemiological
issues at hand and help to bring meaning to them.
ARTICLE 1:
A group of students knew they had covid-19. They hosted
a party over...

1. What is an ISP (Integrated Service Provider) for supply
chains? (1 point)
A. A consultant agency which integrates the supply chain for
companies
B. A 2 PL or a 3PL, but not a 4PL
C. A company supplying transportation and warehousing
services
D. A logistics service company specialized in suppling VAS (value
added
services)
2. What characterizes a 4 PL? (1 point)
A. They are non-asset based and provides integrated services
primarily
supplied by asset based providers, for example...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 3 minutes ago

asked 12 minutes ago

asked 14 minutes ago

asked 14 minutes ago

asked 16 minutes ago

asked 16 minutes ago

asked 17 minutes ago

asked 18 minutes ago

asked 20 minutes ago

asked 23 minutes ago

asked 28 minutes ago

asked 28 minutes ago