Question
In: Statistics and Probability
The distribution of the amount of money spent by students on textbooks in a semester is...
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of 349 and a standard deviation of 24. According to the standard deviation rule, approximately 95% of the students spent between _____$ and _____$ on textbooks in a semester.
Question 12
Type numbers in the boxes.
1 points
The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 16. According to the standard deviation rule, ______% of people have an IQ between 52 and 148. Do not round.
Question 13
Type numbers in the boxes.
10 points
The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a mean of 100 and a standard deviation of 13. According to the standard deviation rule, only _____% of people have an IQ over 139.
Question 14
Type numbers in the boxes.
10 points
The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mean of: μ= 310 and a standard deviation of: σ= 36.
According to the standard deviation rule, almost 2.5% of the students spent more than what amount of money on textbooks in a semester? _____
Solutions
orchestra answered 2 years agoRelated Solutions
The distribution of the amount of money spent by students on textbooks in a semester is...
The distribution of the amount of money spent by students on
textbooks in a semester is approximately normal in shape with a
mean of 349 and a standard deviation of 24. According to the
standard deviation rule, approximately 95% of the students spent
between ____$ and ____$ on textbooks in a semester.
Question 12
Type numbers in the boxes.
1 points
The distribution of IQ (Intelligence Quotient) is approximately
normal in shape with a mean of 100 and a standard...
Question 10: The distribution of the amount of money spent by students on textbooks in a...
Question 10:
The distribution of the amount of money spent by students on
textbooks in a semester is approximately normal in shape with a
mean of 494 and a standard deviation of 39.
According to the standard deviation rule, approximately
68% of the students spent between $_____ and $ ______ on textbooks
in a semester.
Question 11:
The distribution of IQ (Intelligence Quotient) is approximately
normal in shape with a mean of 100 and a standard deviation of
16.
According...
The amount of money spent on books by Hunter students in a semester is normally distributed...
The amount of money spent on books by Hunter students in a
semester is normally distributed with a mean μ = $249, standard
deviation σ = $30.
What is the probability that a randomly chosen student from this
populaiton will have spent between $200 and $300.
(Use the z table or Excel to calculate and enter a probability .00
to 1.00)
1) The distribution of the amount of money spent by college students for school supplies in...
1) The distribution of the amount of money spent by college
students for school supplies in a semester is normally distributed
with a mean of $275 and a standard deviation of $20.
Using the Standard Deviation Rule, there is a 99.7%
probability that students spent between:
Group of answer choices
$255 and $295
$215 and $315
$235 and $315
$235 and $335
$215 and $335
2) The distribution of the amount of money spent by college
students for school supplies...
A random sample of 25 CCRI students found that the average amount spent on textbooks for...
A random sample of 25 CCRI students found that the average
amount spent on textbooks for a course was $180 with a standard
deviation of $30. Find a 95% 2-tailed confidence interval for the
population mean (μ) of the amount a CCRI student spends on
textbooks.
In 2019, the amount of money that motorists spent on gas had a normal distribution with...
In 2019, the amount of money that motorists spent on gas had a
normal distribution with a mean of $900 and a standard deviation of
$100. (a) Find the probability that a motorist spent more than $835
on gas. (b) Find the probability that a motorist spent between $828
and $942 on gas. (c) 75% of motorists spent less than what amount
on gas? (d) Between what two amounts symmetrically distributed
about the mean did 70% of motorists spend on...
A study was conducted to compare males and females and the amount of money spent on...
A study was conducted to compare males and females and the
amount of money spent on a particular mobile phone app. Data for a
large random sample of males (n>1000) and a large random sample
of females (n>1000) were extracted. What type of analysis will
best allow us to determine if the average amount of money spent on
the particular mobile phone app is greater for males than for
females?
options:
An independent samples comparison of population means.
A paired...
Predicting the Amount of Money Spent on Insured Customers For this assignment, we will be analyzing...
Predicting the Amount of Money Spent on Insured Customers
For this assignment, we will be analyzing insured customers'
data for an insurance company:
Based on a
sample data that consists of the profile of insured customers, we
want to be able to predict the dollar amount of money spent by the
insurance company on insured customers.
Insured ustomers' Data
The insured customers'
data is in a csv file. It has information sconsisting of:
1.age
2.sex (female, male)
3.BMI
4.Children
5.Smoker...
The amount of money spent weekly on cleaning, maintenance, and repairs at a large restaurant was...
The amount of money spent weekly on cleaning, maintenance, and
repairs at a large restaurant was observed over a long period of
time to be approximately normally distributed, with mean μ
= $601 and standard deviation σ = $45.
(a) If $646 is budgeted for next week, what is the probability
that the actual costs will exceed the budgeted amount? (Round your
answer to four decimal places.)
(b) How much should be budgeted for weekly repairs, cleaning, and
maintenance so...
The number of customers in a local dive shop depends on the amount of money spent...
The number of customers in a local dive shop depends on the
amount of money spent on advertising. If the shop spends nothing on
advertising, there will be 105 customers/day. If the shop spends
$100, there will be 170 customers/day. As the amount spent on
advertising increases, the number of customers/day increases and
approaches (but never exceeds) 300 customers/day.
(a) Find a linear to linear rational function
y = f(x) that
calculates the number y of customers/day if $x is...
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