Question
In: Statistics and Probability
Identify the sample chosen for the study. The number of times 12 out of 27 students...
Identify the sample chosen for the study.
The number of times 12 out of 27 students on your floor order pizza in a week.
a) all students who order pizza in a week
b) the 27 students on your floor
c) the 12 students on your floor
Solutions
orchestra answered 2 years agoRelated Solutions
An instructor asked a random sample of eight students to record their study times at the...
An instructor asked a random sample of eight students to record
their study times at the beginning of a course. She then made a
table for total hours studied (x) over 2 weeks and test score (y)
at the end of the 2 weeks. The table is given below. Complete
parts (a) through (f).
x
9
13
13
18
10
16
15
23
y
92
78
83
78
86
79
83
83
a. Find the regression equation for the data...
A study of arrival times for a number of international flights. The times were randomly recorded...
A study of arrival times for a number of international flights.
The times were randomly recorded from a normally distributed
population with the following results:
n = 19 and s = 12.1. Find the 95% confidence interval for
σ.
You are rolling a fair dice 100 times. Let N be the number of times out...
You are rolling a fair dice 100 times.
Let N be the number of times out of 100, when you roll an odd
number. What is the most suitable distribution for N? Type one of
the following (Poisson, binomial,
normal,geometric) .
Determine the probability that the number of times N out of
100, when you roll an odd number is 60 or more P ( N ≥ 60 )
= (use R and round to the third decimal place).
Which distribution is...
Activity 1: Presentations by Professional Organizations Students act out role of a member of a chosen...
Activity 1: Presentations by Professional
Organizations
Students act out role of a member of a chosen professional
organization to help others understand the role and services of the
organization and why others should join. Use the table you
developed in the Task to help design and carry out the
presentation. REMEMBER: you must be in character throughout the
presentation.
Activity 2: Certification Requirements
Teams investigate certification, additional training, or work
experience needed for different career choices.
Add this information to...
A simple random sample of 12 reaction times of helicopter pilots is selected. The reaction times...
A simple random sample of 12 reaction times of helicopter pilots
is selected. The reaction times have a normal distribution. The
sample mean is 1.67 sec with a standard deviation of 0.16 sec.
Construct a 90% confidence interval for the population standard
deviation.
1.
0.11 < σ < 0.23
2.
0.01 < σ < 0.05
3.
0.12 < σ < 0.25
4.
0.13 < σ < 0.22
. A study was conducted to examine the correlation between number of study hours and students...
. A
study was conducted to examine the correlation between number of
study hours and students grads in exam. Study hours for students:
2, 3, 5, 6, 8, 10, 10, 2, 5, 6, 5, 3, 7, 6, 2, 7, 6, 8, 2, 5 Grads
in exam for students: 3, 4, 6, 7, 8, 10, 9, 8, 3, 6, 5, 4, 6, 6, 3,
7, 6, 3, 4, 5 1- as ungrouped data find the frequency, accumulated
relative frequency, and accumulative...
. A study was conducted to examine the correlation between number of study hours and students...
. A
study was conducted to examine the correlation between number of
study hours and students grads in exam. Study hors for students: 2,
3, 5, 6, 8, 10, 10, 2, 5, 6, 5, 3, 7, 6, 2, 7, 6, 8, 2, 5 Grads in
exam for students: 3, 4, 6, 7, 8, 10, 9, 8, 3, 6, 5, 4, 6, 6, 3, 7,
6, 3, 4, 5 1- as ungrouped data find the frequency, accumulated
relative frequency, and accumulative...
The number of times that students go to the movies per year has mean is a...
The number of times that students go to the movies per year has
mean is a normal distribution with a mean of 17 with standard
deviation of 8. What is the probability that for a group of 10
students, the mean number of times they go to the movies each year
is between 14 and 18 times? (round your answer to the nearest
hundredth)
***ANSWER IS NOT .2
A study of able-bodied female students at the University of Illinois found that their times for...
A study of able-bodied female students at the University
of Illinois found that their times for the mile run were
approximately normal with mean 7.11 minutes and standard deviation
0.74 minutes.
(a) Choose a student at random from this group and call her time
for the mile X. What is the probability her mile run time was no
more than 6 minutes? Sketch a graph of this situation and shade the
appropriate region.
(b) What is the probability that exactly...
Are the mean number of times a month a person eats out the same for whites,...
Are the mean number of times a month a person eats out the same
for whites, blacks, Hispanics and Asians?
White
Black
Hispanic
Asian
6
4
7
8
8
1
3
3
2
5
5
5
4
2
4
1
6
6
7
df numerator and denominator =
Write Ho and Ha
What is the p-value?
Do you reject or accept the null hypothesis at the 5%
level?
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