Math

StatisticsQ&A LibraryA Gallup Youth Survey in 2001 found that of 501 randomly selected teenagers in the U.S., 271 of them said they got along “very well” with their parents. Use this information to construct a 95% confidence interval estimate of the percentage of all U.S. teenagers that get along “very well” with their parents.Start your trial now! First week only $4.99!*arrow_forward*

Question

A Gallup Youth Survey in 2001 found that of 501 randomly selected teenagers in the U.S., 271 of them said they got along “very well” with their parents. Use this information to construct a 95% confidence interval estimate of the percentage of all U.S. teenagers that get along “very well” with their parents.

1 Rating

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: 72% of all students at a college still need to take another math class. If 34 students are randomly ...

A: It is given that the probability of a selected student need to take another math class is 0.72.The r...

Q: Please See picture

A: 4.22 a) The expected number of games that are played when i=2 is -2p2+2p+2. From the given informati...

Q: Ackerman and Goldsmith (2011) found that students who studied text from printed hardcopy had better ...

A: The hypotheses to be tested are:H0: μ = 81.7, that is, the average score of entire class is 81.7;Ver...

Q: Working with the Concepts 51. Netflix: A study conducted in 2015 by the technology company Rovi (now...

A: Given dataHypothesized mean = 19.3Population Standard deviation = 8Sample mean = 21.5Sample size n =...

Q: The patient recovery time from a particular surgical procedure is normally distributed with a mean o...

A: The provided information is:

Q: 6. Suppose a researcher used data on a group of third year students at MIT to estimate the following...

A: According to the provided information, the fitted regression line is

Q: The probability of a randomly selected adult in one country being infected with a certain virus is 0...

A: It is provided that the probability, in one country a randomly selected adult being infected with a ...

Q: The manufacturer of a certain brand of household light bulbs claims that the bulbs produced by their...

A: The provided information are:Sample size (n) = 10Sample mean (x̄) = 1960Sample standard deviation (s...

Q: It is believed that 67.3% of Americans own their own homes. Suppose a sample of 50 Americans were s...

A: Consider,X be random variable that shows the number of people who has their own home which follows b...

Q: A poll asked the question, "What do you think is the most important problem facing this country toda...

A: Solution:The confidence interval formula for proportion formula is,

Q: Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed wi...

A: From the given information,Mean (μ) =272days and standard deviation (σ) =19daysSample size (n) =51

Q: Company XYZ know that replacement times for the portable MP3 players it produces are normally distri...

A: Consider,X be a random variable that shows the replacement times for the portable MP3 which follows ...

Q: Suppose 36 participants complete an experiment where ads are presented subliminally during a task (e...

A: a). From the provided information, the null and alternative hypothesis can be stated as:H0:µ=0.50, t...

Q: (Round to two decimal places as needed.) d. Find P p>0 43) The probability that p is greater than 0....

A: The provided data is sample size, n is 77 and the probability of success, p is 0.4.The mean and stan...

Q: problem 3A

A: Relative risk:Relative risk is the ratio of probability of an event in exposed group to probability ...

Q: the NCAA estimates

A: There are two questions given in the file, Do find the solution for first question (34)Part aGiven T...

Q: Searc k for Chapter 9-3352. (1) Protected View - Saved Help View Review Mailings rences t can contai...

A: Given Data

Q: Test the claims using the traditional method of hypothesis testing. According to a recent poll, 53...

A: It is given that the population proportion; P is (=0.53). In the survey, it is found that the rando...

Q: For a population of m=50 and standard deviation of 6, describe the shape, the mean, and the standard...

A: The provided information is:

Q: Suppose x is a normally distributed random variable with u 55 and a 4. Find a value xn of the random...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: A laboratory tested 25 chicken eggs and found that the mean amount of cholesterol was 225 milligrams...

A: Confidence interval when population standard deviation is not known:The formula of confidence interv...

Q: What is the value of ΣX for the scores 2, 5, 3?

A: Given data2,5, 3ΣX = 2+5+3 = 10

Q: Here is a chart showing how many people are non-smokers, occasional smokers, and heavy smokers by th...

A: Note:Hey there! Thank you for the question. Since you have posted two different questions together, ...

Q: I have attached a picture of the question, please only answer section A, B, and C. Thank you.

A: Hello there! there are more than three subparts in the question. According to our policies we cannot...

Q: A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Liste...

A: According to the question, a food safety guideline is that the mercury in fish should be below 1 par...

Q: 58% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults. Fi...

A: (a)The probability that the number of U.S. adults who have very little confidence in newspapers is ...

Q: Formulate the indicated conclusion in nontechnical terms. Be sure to address the original claim. A...

A: Given claim: An entomologist claims that fewer than 19 in ten thousand male fireflies are unable to ...

Q: Selecting a card- when a card is drawn from a deck, find the probability of getting d. A king e. A r...

A: Total number of cards in a deck =52.There are 4 kings in the deck.There are 26 red cards in the deck...

Q: The Student Monitor surveys 1200 undergraduates from 100 colleges semiannually to understand trends ...

A: Click to see the answer

Q: How many license plates can be made using two letters followed by four digits (0-9), allowing repeti...

A: From this given information, license plates can be made using two letters followed by four digits (0...

Q: A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 50% ...

A: Given datan= 10p= 0.5probability that exactly two-fifths of the buyers would prefer green is given b...

Q: Sam computed a 90% confidence interval for μ from a specific random sample of size n. He claims that...

A: Sam computed a 90% confidence interval for µ from a specific random sample of size n.

Q: Personnel tests are designed to test a job applicant's cognitive and/or physical abilities. A part...

A: It is given that the mean and standard deviation are 74 and 7.4, respectively.

Q: 4.1 part d

A: (d)The sample standard deviation of the test scores across the 100 classrooms is,

Q: Explain the significance of the term SSBetween-subjects in a RM-ANOVA

A: Click to see the answer

Q: The student council is hosting a drawing to raise money for scholarships. They are selling tickets f...

A: The cost of a single ticket is $6. Total tickets are 700.There are 1 prize with $1,000, 3 prizes wit...

Q: Comparison between two diets in obese children, one low-fat and one low-carb 8 week intervention wit...

A: A).The standard deviations of low-fat and low-carb groups are 8.4 and 7.7 respectively. The sample s...

Q: The systolic blood pressure of adults in the USA is nearly normally distributed with a mean of 120 a...

A: Hello there! there are more than three subparts in the question. According to our policies we cannot...

Q: Two fair dice are rolled, one blue, (abbreviated B) and one red, (abbreviated R). Each die has one o...

A: Note:Hey there! Thank you for the question. The Venn d=Diagram that you have posted is in image form...

Q: Part D and E

A: In order to get the test statistic value, the MINITAB output for the paired t-test is given below.

Q: Today, the waves are crashing onto the beach every 5.3 seconds. The times from when a person arrives...

A: Let X be the random variable uniformly distributed between 0 and 5.3 seconds.Denote X as the time fr...

Q: A card is selected at random in a standard deck of 52 cards. What is the probability of selecting a ...

A: The number of cards in a deck is 52. In these 52 cards number of red cards is 26 and number of black...

Q: Part b. Please show TI 84 steps

A: Confidence interval when population standard deviation is not known:The formula of confidence interv...

Q: An article in the Archives of Internal Medicine reported that in a sample of 224 men, 73 had elevate...

A: Here 224 men and 232 women are selected randomly. 73 of the men had elevated cholesterol levels, whe...

Q: i need help with how to figure out this problem. i don't understand how to find the solution in a ga...

A: From the provided information, if a coin is tossed and a die is rolled than the total sample space c...

Q: in a quiz competition, there are 5 competitors, each of whom makes a random choice out of 10 prizes,...

A: From the given information, there are 10 prizes. In 10 prizes, the number of wrist watches are 3 and...

Q: Please show TI 84 steps

A: Introduction:The 100 (1 – α) % confidence interval for the population mean, μ, for given population ...

Q: Find the area of the shaded region. The graph depicts the standard normal distribution of bone densi...

A: The required area is the right tailed probability of a standard normal distribution greater than –1....

Q: Test the given claim using the P-value method of hypothesis testing. The health of employees is mo...

A: Introduction:Denote μ as the true mean weight of the population, from which, the sample of 54 is obt...

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of...

A: The probability that the average length of a randomly selected bundle of steel rods is less than 190...