On average 28% of 18 to 34 year olds check their social media profiles before getting...
On average 28% of 18 to 34 year olds check their social media profiles before getting out of bed in the morning. suppose this percentage follows a normal distribution with a random variable X which has a standard deviation of 5%. find the probability that the percent of 18 to 34 year olds who check social media before getting out of bed in the morning is at most 32
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On average 28% of 18 to 34 year olds check their social media
profiles before getting...
A recent study has shown that 28% of 18-34 year olds check their Facebook/Instagram feeds before getting out of bed in t...
A recent study has shown that 28% of 18-34 year olds check their Facebook/Instagram feeds before getting out of bed in the morning, If we sampled a group of 150 18-34 year olds, what is the probability that the number of them who checked their social media before getting out of bed is: a.) At least 34? b.) No more than 50? c.) between 40 and 44 (including 40 and 44)? Use the Normal Approximation to the Binomial distribution to...
Question: The number of users that check social media daily is the same for '35 to...
Question:
The number of users that check social media daily is the same
for '35 to 44' and '45-54' age groups. If there are 41 million '35
- 44' year olds in North America, how many '45-54' year olds are
there to the nearest million?
i Social media habits by continent 87% 89% 90% 80% 65% 70% 73% 62% 63% 56% 60% 40% 28% 31% 35%. 20% 16% 18% 12% 0% Have a social media account Checks social media daily...
1.1 Fuel Economy. (mpg) of model year 2016 motor vehicles Here is a small part of a data set that...
1.1 Fuel Economy. (mpg) of model year 2016 motor vehicles Here is a small part of a data set that describes the fuel economy in miles per gallon Make and Vehicle Class Transmission Number of City Highway Annual Fuel Model Type Cylinders mpg mpg Cost Subaru Im Compact preza Nissan Juke Small station Manual Manual 4 25 34 $900 4 28 34 1,100 wagon Midsize Hyundai Elantra GT Automatic 24 $950 19 Chevrolet Im Large pala Automatic 29 1,150 The...
1. Why is growing the number of users such an important metric for social media companies?...
1. Why is growing the number of users such an important metric
for social media companies? How does Metcalfe’s Law relate to the
profitability of social media companies?
2. Most social media companies rely on ad revenue as their
main source of income. What are other ways that LinkedIn generates
income? Why is it important for a company to have multiple ways of
generating income?
3.Why do recruiters and job seekers like LinkedIn? Explain why
an employer may dislike LinkedIn....
(1) A survey found that the American family generates an average of 17.2 pounds of glass...
(1) A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume that standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 55 families will be between more than 18 pounds. Assume that the sample is taken from a population normally distributed. (2) The average weight of 40 randomly selected minivans was 4150 pounds. The population standard deviation was 480. Find the 99%...
_______________ ______ _________ 15. Testing a population proportion formulating hypotheses and determining the type of test...
_______________
______
_________
15. Testing a population proportion formulating hypotheses and determining the type of test Cervical cancer is cancer of the cervix, the part of the uterus that connects to the vagina. It is the second most common cancer in women worldwide. It is almost always caused by human papillomaviruses (HPV) and is typically screened for using the Papanicolaou (Pap) test, also known as the pap smear. A recent study showed that DNA testing for HPV is more effective...
11. (18 points on the replacement times for washing machines woman 3 years and standard deviation...
11. (18 points on the replacement times for washing machines woman 3 years and standard deviation of 1.1 year. Find the probability that to domly selected we are a replacement Round your answer to decimal places. Show how you get your answer. 12.12 points The way of here in one come and standard deviation of what is the protect at a randomly died wachers or 15 per week? Round your answer to decimal places Show how you get your answer....
1.) Accrotime is a manufacturer of quartz crystal watches. Accrotime researchers have shown that the watches...
1.) Accrotime is a manufacturer of quartz crystal watches.
Accrotime researchers have shown that the watches have an average
life of 30 months before certain electronic components deteriorate,
causing the watch to become unreliable. The standard deviation of
watch lifetimes is 10 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace?
(b) If Accrotime...
BUSINESS ANALYTICS Late in the summer, before the start of the school year, you decide to...
BUSINESS ANALYTICS
Late in the summer, before the start of the school year, you
decide to make a quick phone call to your old college roommate
Jeremy Hertz, who now lives in Aspen, Co where he runs a
ski-equipment shop. “I love living in a ski town”, says Jeremy.
It’s great here all year round! Why don’t you come for Labor Day
weekend? It’ll be beautiful, we can do some hiking and eat in all
the good restaurants before they...
A sample of 10-year-old children found that they receive the following weekly allowances: $6, $1, $2,...
A sample of 10-year-old children found that they receive the following weekly allowances: $6, $1, $2, $10, $4, $3, $9. What is the sample mean? Answer choices: $4, $5, $6, $7 114 out of 150 customers at a bank said that they prefer to use ATMs rather than going to a live teller. What is the sample proportion of bank customers who prefer to use ATMs? Answer choices: 0.68, 0.72, 0.76, 0.80 Which sample size would give the best estimate...
Question:
The number of users that check social media daily is the same
for '35 to 44' and '45-54' age groups. If there are 41 million '35
- 44' year olds in North America, how many '45-54' year olds are
there to the nearest million?
i Social media habits by continent 87% 89% 90% 80% 65% 70% 73% 62% 63% 56% 60% 40% 28% 31% 35%. 20% 16% 18% 12% 0% Have a social media account Checks social media daily...
1.1 Fuel Economy. (mpg) of model year 2016 motor vehicles Here is a small part of a data set that describes the fuel economy in miles per gallon Make and Vehicle Class Transmission Number of City Highway Annual Fuel Model Type Cylinders mpg mpg Cost Subaru Im Compact preza Nissan Juke Small station Manual Manual 4 25 34 $900 4 28 34 1,100 wagon Midsize Hyundai Elantra GT Automatic 24 $950 19 Chevrolet Im Large pala Automatic 29 1,150 The...
1. Why is growing the number of users such an important metric
for social media companies? How does Metcalfe’s Law relate to the
profitability of social media companies?
2. Most social media companies rely on ad revenue as their
main source of income. What are other ways that LinkedIn generates
income? Why is it important for a company to have multiple ways of
generating income?
3.Why do recruiters and job seekers like LinkedIn? Explain why
an employer may dislike LinkedIn....
_______________
______
_________
15. Testing a population proportion formulating hypotheses and determining the type of test Cervical cancer is cancer of the cervix, the part of the uterus that connects to the vagina. It is the second most common cancer in women worldwide. It is almost always caused by human papillomaviruses (HPV) and is typically screened for using the Papanicolaou (Pap) test, also known as the pap smear. A recent study showed that DNA testing for HPV is more effective...
11. (18 points on the replacement times for washing machines woman 3 years and standard deviation of 1.1 year. Find the probability that to domly selected we are a replacement Round your answer to decimal places. Show how you get your answer. 12.12 points The way of here in one come and standard deviation of what is the protect at a randomly died wachers or 15 per week? Round your answer to decimal places Show how you get your answer....
1.) Accrotime is a manufacturer of quartz crystal watches.
Accrotime researchers have shown that the watches have an average
life of 30 months before certain electronic components deteriorate,
causing the watch to become unreliable. The standard deviation of
watch lifetimes is 10 months, and the distribution of lifetimes is
normal.
(a) If Accrotime guarantees a full refund on any defective watch
for 2 years after purchase, what percentage of total production
will the company expect to replace?
(b) If Accrotime...
BUSINESS ANALYTICS
Late in the summer, before the start of the school year, you
decide to make a quick phone call to your old college roommate
Jeremy Hertz, who now lives in Aspen, Co where he runs a
ski-equipment shop. “I love living in a ski town”, says Jeremy.
It’s great here all year round! Why don’t you come for Labor Day
weekend? It’ll be beautiful, we can do some hiking and eat in all
the good restaurants before they...
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