Suppose the lengths, in seconds, of the songs in an online database are normally distributed. For a random sample of songs, the confidence interval ( 184.00, 188.00) is generated. Find the sample mean x.

Suppose the lengths, in seconds, of the songs in an online database are normally distributed. For a random sample of songs, the confidence interval ( 184.00, 188.00) is generated. Find the sample mean x.

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: A 93.32% Cl is given as (2.5, 3.5). From this information, find a 95% confidence interval (yes, this…

A: The provided information is as follows:The 93.32% confidence interval is (2.5,3.5).

Q: Of 500 random people surveyed, 72 were smokers. Find the 95% confidence interval. SE=0.0157

Q: f n=450 and X = 360, construct a 99% confidence interval.

Q: Anyone who plays or watches sports has heard of the "home field advantage." Teams tend to win more…

A: Given Information: Sample size n=2431 Number of successes x=1319 Hypothesized value of population…

Q: A set of observations has 4 values and a mean of 33.6. A new observation of 21.3 is added to the…

Q: Suppose you select a random sample of N=81, and find X = 50, and s = 9.9. Determine the 99%…

A: Given Mean=50 Standard deviations=9.9 n=81

Q: Suppose that a category of world class runners are known to run a marathon (26 miles) in an average…

A: The random variable X is the average of the 49 races. The mean is 142, and standard deviation is 13.…

Q: Jeff is doing an experiment involving mice. The mice weights have mean weight 3.68 ounces and…

Q: on the exam. She gives one of her two statistics clasS w day: X = 83.3, s= 4.1; n= 68 eview day: X =…

A: The claim is that the teacher wants to determine that having an extra review day for a test helps…

Q: A random sample of 600 adults in Flagstaff found 90 adults who had lost a job in the past year. Find…

A: Step 1:Given data : Sample size n=600no. of successes x=90 Sample proportion p^=60090=0.15Let p…

Q: About 1% of the population has a particular genetic mutation. 187 people are randomly selected.…

A: Obtain the mean for the number of people with the genetic mutation in such groups of 187. The value…

Q: find the margin of error of a 99% confidence interval for the mean score of all student

A: It is given that Sample mean = 93 Sample standard deviation, s = 7 Sample size, n = 30

Q: Suppose the lengths, in seconds, of the songs in an online database are normally distributed. For a…

A: The confidence interval is provided as (184.00, 188.00) where 184 is the lower limit (L) and 188 is…

Q: A successful basketball player has a height of 6 feet 8 inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: If n = 230 and X = 184, construct a 99% confidence interval for the population proportion, p.Give…

A: Given data n = 230 x = 184 sample proportion

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

A: Let X represents the lengths of the steel rods Mean (X)=98.3 Standard deviation (X)=2.4 Therefore,…

Q: If n = 180 and X = 144, construct a 90% confidence interval for the population proportion, p. Give…

A: Solution: From the given information, X=144, n=180 and the confidence level is 0.90. The sample…

Q: The population mean of a set of data is unknown. The sample mean is 44, and the error bound for the…

Q: If r = 0.7 for the probability and statistics course grades of 30 students, construct a 95%…

A: Confidence interval for correlation coefficient is given by,

Q: The summary data from study demonstrates a stronger relationship between how many minutes per day a…

A: Given : A standard deviation is a measure of how dispersed the data is in relation to the mean. Low…

Q: A history teacher records the SAT scores of all 87 of her students. The data is used to construct a…

A: For calculating the confidence interval, we need to satisfy the following conditions: Independence…

Q: If [330, 610] is a confidence interval for the population mean. Find the margin of eror. Select one:…

A: The upper limit of the confidence interval is (U) = 610 The lower limit of the confidence interval…

Q: Mark each statement TRUE or FALSE. For these problems, assume that to estimate average time spent…

A: The 95% confidence interval is (4,6).

Q: If n = 330 and X = 264, construct a 95% confidence interval for the population proportion, p.

A: Ans#- From the provided information, Confidence level = 95% Sample size (n) = 330, x = 264 Sample…

Q: Find ??/2 for the 93% confidence interval. Select one: A. 1.83 B. 1.81 C. 1.80 D. 1.82

A: Solution: Given information: Confidence level = 93% = 0.93 α=1-confidence level α=1-0.93= 0.07…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: If n=590 and p=0.93, construct a 90% confidence interval.

A: Express the expression for the confidence interval. C.I=p±Z*p(1-p)n Here, Z* is the critical value .…

Q: Construct the confidence interval for the population mean . C=0.98, x=15.3, = 10.0, and n=75

A: The Confidence Interval formula is X ± Z s √(n) Where: X is the mean Z is the Z-value…

Q: Here are summary statistics for randomly selected weights of newborn girls: n = 250, x= 32.4 hg, s=…

A: The following information has been provided: The sample size is n=20. The sample mean is x¯=32.5.…

Q: dying the number of gallons of gasoline purchased per customer at self-service pumps. The mean…

Q: Scott wants to find a 95% confidence interval for the average GPA for Allegany College of Maryland…

Q: Construct a 99% confidence interval of the population proportion using the given information.…

Q: If Xbar=93, σ=13, and n=62, construct a 99% confidence interval estimate of the population…

A: Given that Sample size: n=62 Sample mean: x¯=93 Population standard deviation: σ=13 Confidence…

Q: James and Harry play baseball and each of them can score one goal with the probabilities of 0.4 and…

Q: 18 men will be tested for the discus throw. if Mu= 112ft and standard deviation= 13ft. find the…

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

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

A: Normal distribution

Q: f n=300 and x=60, construct a 99% confidence interval estimate for the population proportion.

A: n=300 and x=60, construct a 99% confidence interval

Q: If n = 440 and X = 352, construct a 90% confidence interval for the population proportion, p. Give…

Q: Find a Confidence interval for the true Population Proportions if n = 30, x = 75, and the…

A: From the given information, X=75 and n=30.

Q: Construct a 90% confidence interval of the population proportion using the given information.…

A: x=240 n=300 p= 240/300 = 0.8 q = 1-p = 1-0.8 = 0.2

Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Suppose the lengths, in seconds, of the songs in an
online database are normally distributed. For a
random sample of songs, the confidence interval (
184.00, 188.00) is generated. Find the sample
mean x.
Give just a number for your answer. For example,
if you found that the sample mean was 12, you
would enter 12.

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

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

A 95% confidence interval is constructed in order to estimate the proportion of adults who own an iPhone. The resulting interval has a margin of error of 0.043. Which of the following would be the margin of error for a 90% confidence interval based on the same sample of data?
If 330, 610 is a confidence interval for the population mean. Find the value of the point estimator of the population mean. Select one: a. 450 O b. 460 O c. 470 O d. 430
find tc for a 95% confidence level when the sample size is 6.
Alan wants to estimate the proportion of adults who walk to work. In a survey of 10 adults, he finds 1 who walk to work. Obtain and interpret a 95% confidence interval for the proportion of adults who walk to work.
A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of 241.2-cm and a standard deviation of 0.6-cm.Find P22, which is the length separating the shortest 22% rods from the longest 78%.P22 =
Find the confidence level and α for an 80% confidence interval.
If n= 100 and x= 80, construct a 99% confidence interval. Give your answers to three decimals
At one large college, 660 out of the 1500 students surveyed said they plan to take another science class.Find the 95% confidence interval for the proportion of students that said they plan to take another science class.
We would like to create a confidence interval for the mean. Which of the following would produce the smallest margin of error? Select one: a.A 95% confidence level and a sample size of 150 subjects b. A 99% confidence level and a sample size of 600 subjects. c. A 99% confidence level and a sample size of 150 subjects. d.A 95% confidence level and a sample size of 600 subjects.
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
Assume that a sample is being used to estimate a population mean . If n = 16, = 38, and s = 3, find the margin of error at a 95% confidence level. Give your answer to two decimal places.
Construct the confidence interval for the population mean. C=0.98, x=6.6, =0.8, and n=56