A poll agency reports that 46% of teenagers aged 12-17 own smartphones. A random sample of 147 teenagers is drawn. Round your answers to at least four decimal places as needed. (d) Find the probability that the proportion of the sampled teenagers who own a smartphone is between 0.41 and 0.51.The probability that the proportion of the sampled teenagers who own a smartphone is between 0.41 and 0.51 isPart: 4 / 6Part 5 of 6(e) Find the probability that less than 50% of sampled teenagers own smartphones.The probability that less than 50% of sampled teenagers own smartphones isPart: 5 / 6Part 6 of 6(f) Would it be unusual if less than 42% of the sampled teenagers owned smartphones?It (Choose one)be unusual if less than 42% of the sampled teenagers owned smartphones, since the probability is (a) Find the mean µ^.The mean µn isPart: 1 / 6Part 2 of 6(b) Find the standard deviation on.The standard deviation oa isPart: 2 / 6Part 3 of 6(c) Find the probability that more than 52% of the sampled teenagers own a smartphone.The probability that more than 52% of the sampled teenagers own a smartphone is

Answered: Image /qna-images/answer/988571a3-9fac-4e72-8bb1-c0499522c11f.jpg

Answered: A poll agency reports that 46% of…

A poll agency reports that 46% of teenagers aged 12-17 own smartphones. A random sample of 147 teenagers is drawn. Round your answers to at least four decimal places as needed.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: there are 347 people that take a survey and assume that 112 of them are women. what percentage of…

A: The percentage of females in the survey is calculated below:

Q: A recent survey of 537 California college students found that 481 had taken an online class in the…

Q: According to the results of a survey, 48% of 422 people indicated that American football is their…

A: We have given that Margin of error (E) = 2% = 0.02 When confidence level is not given by default we…

Q: According to the results of a survey, 32% of 102 people indicated that American football is…

A: Consider the level of significance as 0.05. Computation of critical value:…

Q: A fair coin is tossed 30 times. How likely are you to see exactly 15 heads? Round to four decimal…

A: given data, a fair coin is tossed 30 times n=30…

Q: A Sample of 25 cities have been classified as high or low on their homicide rates and on the number…

A: The formula for chi-square is, χ2=∑fo-fe2fe In the formula fo is the observed frequency, fe is the…

Q: According to recent data, 33% of people are left handed. In a sample of 200 people, how many would…

A: Answer: From the given data, Let X: Left handed people Sample size (n) = 200 P(left handed people) =…

Q: Out of 200 students, 86 use fb, 68 insta, and 29 use both. How many students surveyed use neither fb…

Q: According to the results of a survey, 36% of 617 people indicated that American football is their…

A: The formula for the sample size is as given below: n=p1-pZα2E2 Here, zα/2 is the critical value at…

Q: Of the 328 patients that completed the survey last year, 211 of them claimed to be returning…

A: Given: 328 patients completed the survey 211 patients returning

Q: The 1994 Northridge, California earthquake measured about 5,011,000 times as intense as a 0-level…

Q: According to the results of a survey, 49% of 1448 people indicated that American football is their…

Q: The issue/scenario: A bio-tech firm has provided you with 1 years’ worth of sales for a sample of 45…

A: From the given information, there are two groups in Engineer category, 'No' and 'Yes'. The…

Q: Sometimes when you are sick, your forehead feels really warm. You might have fever. How can you find…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: recent study revealed that 49% of adult Americans believe human activity contributes a great deal to…

A: Given that, A recent study revealed that 49% of adult Americans believe human activity contributes a…

Q: At the local college, a study found that students earned an average of 8.5 credit hours per…

A: Given, the average credit hour per semester is 8.5. The sample size is 127 students.

Q: According to a recent report, 32.2% of American adults (aged 20 and older) are obese (The New York…

A: Hypothesis test are used to understand the population based on taking the sample using the…

Q: Experts claim that 10% of murders are committed by women. In a random sample of 67 murders, 10 were…

Q: A report indicated that two-thirds of all patients on a given day had a CBC. How many out of every…

A: Solution: We are given:A report indicated that two-thirds of all patients on a given day had a CBC.

Q: The Institute of Education Sciences measures the high school dropout rate as the percentage of…

A: Given:n = 1000Population Proportion, p = 8.1% = 0.081Significance level, α = 5% = 0.05

Q: A survey found that 58% of American adults said they use the Internet. If 20 American adults are…

A: Answer - A survey found that 58% i.e P = 0.58 n= 20, x = 12

Q: 2. Explain the steps of finding the IQR.

A: 2) The steps to finding the value of IQR is, Step 1: First arrange the data in ascending order Step…

Q: According to recent data, 12 percent of people are left handed. In a sample of 20 people, how many…

A: Answer: Using the given data, Let X denotes the number of people who are left handed P(left handed)…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

Q: Among the 1018 respondents, 54 said that cellular phones are “not at all annoying.” what percentage…

A: Let x is the percentage of respondents said that cellular phones are “not at all annoying”.

Q: What proportion of the general population has an IQ of 70 or less?

A: It is an important part of statistics. It is widely used.

Q: According to recent data, 21 percent of people are left handed. In a sample of 100 people, how many…

A: The expected number of the left handed people is obtained below as follows: From the information,…

Q: A research company found that 11.3% of consumers surveyed used organic shampoo. The company claims…

A: Given, Margin of error , E = 3.5% = 0.035 p = 11.3% = 0.113 19 out of 20 times, => 95% confidence…

Q: A certain county had a population of 34,485 people. The county hospital is interested in estimating…

A: They test blood samples from 228 patients. Out of this group, 10 have blood type-O. The probability…

Q: pproximately 21% of music lovers like Country Music. Of those who do, 97% do not have mild brain…

A: Given Data: P( like country music)=0.21 P( do not have mild brain damage| like country music)=0.97

Q: In a sample of 169 students, 16 said they have donated blood. What percent of the students have…

A: Given that, In a sample of 169 students, 16 said they have donated blood.

Q: The American Heart Association is about to conduct an anti-smoking campaign and wants to know the…

Q: Generally, 1 in 40 women will develop skin cancer in their lifetime. A study showed that that the…

Q: Approximately 29% of music lovers like Country Music. Of those who do, 96% do not have mild brain…

A: P(like country music) = 0.29 P(not have mild brain damage | like county music = 0.96

Q: A group of 500 students take a survey about distance learning. 150 prefer distance learning. What…

A: The provided information is A group of 500 students take a survey about distance learning. 150…

Q: A large group of people get together. Each one rolls a die 120 times, and counts the number of aces…

A: Given , the number of Ace's obtained pn rolling a die 120 times by a person.n = 120P = Using…

Q: Heart Rate Data was collected according to Time in 10 min intervals over the course of 1 hour. What…

A: The question is about scale of measurements Introduction : There are 4 types of scale of measurement…

Q: A survey found that about 49% of the people who work at an accounting firm take a company car pool…

A: Find the estimate number of the people and the actual number of people

Q: The indicated IQ score, x, is

A: It is given that the mean and the standard deviation is 100 and 15, respectively. That is, σ=15 and…

Q: The American Heart Association is about to conduct an anti-smoking campaign and wants to know the…

A: Suppose p is the population proportion of all Americans over 35 who smoke.

Question

A poll agency reports that 46% of teenagers aged 12-17 own smartphones. A random sample of 147 teenagers is drawn. Round your answers to at least four decimal places as needed.

(d) Find the probability that the proportion of the sampled teenagers who own a smartphone is between 0.41 and 0.51.
The probability that the proportion of the sampled teenagers who own a smartphone is between 0.41 and 0.51 is
Part: 4 / 6
Part 5 of 6
(e) Find the probability that less than 50% of sampled teenagers own smartphones.
The probability that less than 50% of sampled teenagers own smartphones is
Part: 5 / 6
Part 6 of 6
(f) Would it be unusual if less than 42% of the sampled teenagers owned smartphones?
It (Choose one)
be unusual if less than 42% of the sampled teenagers owned smartphones, since the probability is

(a) Find the mean µ^.
The mean µn is
Part: 1 / 6
Part 2 of 6
(b) Find the standard deviation on.
The standard deviation oa is
Part: 2 / 6
Part 3 of 6
(c) Find the probability that more than 52% of the sampled teenagers own a smartphone.
The probability that more than 52% of the sampled teenagers own a smartphone is

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

In 2014, what ratio of construction worker injuries resulted in death?a.1 out of 5Correctb.1 out of 50Incorrectc.1 out of 100Incorrectd.1 out of 1,000
From a Gallup Poll: Among 990 survey subjects, 5.6 % have an alcoholic drink every day. x = nothing (round off to a whole number)
In July 2019, a study reported that 63% of Americans use Instagram daily. An SRS of 15 PCC students are asked "Did you use Instagram today?" What is the mean of X? Write your answer to the nearest hundredth (2 decimal places).
According to a report published by the center for Disease Control (CDC) in 2011, approximately one in two people with asthma had an asthma attack in2008.
Approximately 1.4% is not correct
In a Harris poll of 2302 adults, 14% said they have a tattoo. Approximately how many adults have a tattoo?
A study in 2014 indicated that 19% of American households have a landline telephone that they do not intend to disconnect. In a random sample of 581 American households, how many would we expect to have a landline telephone they do not plan to get rid of? Round your answer to one decimal place.
USA Today reported that about 20% of all people In the United States are Illiterate. Suppose you take eleven people at random off a city street. P USE SALT (a) Make a histogram showing the probability distribution of the number of illiterate people out of the eleven people in the sample. 0.30 0.30 0.25 0.25 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 2 3 4 5 7. 8 9 10 11 0 1 2 3 4 5 6 78 9 10 11 0.30 0.30 0.25 0.25 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 0. 0 1 2 3 4 5 6 7 8 9 10 11 0 1 2 3 45 6 7 8 9 10 11 (b) Find the mean and standard deviation of this probability distribution. (Round your standard deviation to two decimal places.) people people Find the expected number of people in this sample who are illiterate. people
Approximately 19% of music lovers like Country Music. Of those who do, 97% do not have mild brain damage.What percent of music lovers like Country and do not have Brain Damage?
The Nenana Ice Classic is an annual contest to guess the exact time in the spring thaw when a tripod erected on the frozen. Tanana River near Nenana, Alaska, will fall through the ice. The contest has been run since 1917. The 2017 jackpot was $267,444. The table gives simplified data that record only the date on which the tripod fell each year. The earliest date so far is April 20. To make the data casier to use, the table gives the date each year in days starting with April 20. That is, April 20 is 1, April 21 is 2, and so on. Days from April 20 for the Tanana River tripod to fall Duy Year 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 Year 1948 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 Days from April 20 for the Tanana River tripod to fall 1983 11 1984 22 14 22 22 23 20 22 16 7 23 17 16 19 21 12 19 Day 19 9 15 19 21 15 17 21 17 11. 11 10 11 21 10 20 Days from April 20 for the Tanana River tripod to fall Year 1934 1935…
A hospital report indicates 25% of its patients had an MRI in January. If 1,060 patients were hospitalized in January, how many had an MRI?
The distances golf balls travel under laboratory testing conditions are normally distributed. The mean is 312 yards. The probability the golf ball travels further than 319 yards is 0.28. Find the probability a randomly selected golf ball travels between 305 yards and 319 yards. Express the answer as a decimal value rounded to the nearest hundredth.