Suppose that 0.63 of all adults own a car. Random samples of adults are taken and the proportion of each sample that owns a car was found. 31.21% of all sample proportions were greater than 0.6937. What is σp^?

Suppose that 0.63 of all adults own a car. Random samples of adults are taken and the proportion of each sample that owns a car was found. 31.21% of all sample proportions were greater than 0.6937. What is σp^?

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: Consider a population that has an average score of 100 that is normally distributed (standard…

A: Solution-: Given: μ=100,σ=1 Let, X- be the score We want to find P(X<100)=?

Q: what is the sample standard deviation?

Q: According to CDC, among men aged 20-39 obesity is 40.5%--? = 0.405. You take repeated samples of…

A: Given The data is as follows: n=650

Q: Suppose a variable is Normally distributed with μ=345 and \sigma σ=30. What proportion of the data…

A: Mean(µ) = 345Standard deviations (σ) = 30X ~ N (µ, σ )= N(345, 30)

Q: Suppose that a distribution of 400 items has mean 130 and standard deviation 5. Find the z-score of…

A: Given that. X~N( μ , ?) μ=130 , ?=5 , x=143 Z-score =( x - μ )/?

Q: The length of human pregnancies from conception to birth varies according to a distribution that is…

A: Given that Mean =266 Population standard deviation =16 Sample size n=6

Q: A population has a standard deviation of 25 and a mean of 300. Given a random sample of size 100,…

Q: o=58. From sample sizes of 36 adults find the proportion of sample means having values of at least…

A: here , sample size = 36 population mean = 162 population standard deviation = 58

Q: A normally distributed population has a population mean ? = 21 and standard deviation ? = 4. What…

A: Given Information: Mean = 21 Standard Deviation = 4

Q: Suppose you could take all possible samples of size n = 25 from a Normal population with mean μ = 50…

A: Given that a sample of size n = 25 is drawn from a normal population with mean μ = 50 and σ = 5.

Q: A cigarette manufacturer claims that one-eighth of the US adult population smokes cigarettes. In a…

A: Given: P = 18 = 0.125 n = 100 X = 5 α = 0.05 Formula Used: Test-statistic Z = p-PP(1-P)n

Q: find out population standard deviation with clear all steps 65,69,86,36,45,25,31,74,32.1

A: ANSWER:- x x2 65 4225 69 4761 86 7396 36 1296 45 2025 25 625 31 961 74 5476…

Q: population has a standard deviation of 18 on average how much difference should exist between the…

A: A population has a standard deviation of 18.

Q: The population of weights of a particular fruit is normally distributed, with a mean of 265 grams…

A: Let X denote the population of weights of a particular fruit is normally distributed, with a mean of…

Q: the population of weights of a particular fruit is normally distributed, with a mean of 766 grams…

Q: Suppose a variable is Normally distributed with μ=345 and \sigma σ=30. What proportion of the data…

A: Let X be the random variable from normal distribution with mean (μ) = 345 and standard deviation (σ)…

Q: A normally distributed population has a population mean ? = 40 and standard deviation ? = 5. What…

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

Q: Larry is a 62% free-throw shooter, that is to say that anytime Larry attempts a free-throw, there is…

A: Given data, p=62% =0.62 n=70 Mean=?

Q: A random sample of size, n=20 has the mean 20 and standard deviation 5. What is the coefficeint of…

A: Given Information: Sample size (n) = 20 Sample mean (x¯) = 20 Sample standard deviation (s) = 5 To…

Q: The IQs of 600 applicants of a certain college are approximately normally distributed with a mean of…

A: Given : The IQs of 600 applicants of a certain college are approximately normally distributed with a…

Q: Suppose that we randomly select a sample of 80 measurements from an infinite population having a…

A: 1) Given: Mean μ=30 Standard deviation σ=5 Sample size n=80

Q: What percent of the total population of data values are included at +/- 1 sigma? +/- 2 sigma? +/- 3…

A: What percent of the total population of data values are included at +/- 1 sigma? +/- 2 sigma? +/- 3…

Q: ppose x comes from a distribution where the mean is 151 and the standard deviation is 22. Suppose a…

A: Population mean =151Population standard deviation =22Sample size n =63

Q: Suppose x comes from a distribution where the mean is 151 and the standard deviation i 22. Suppose a…

Q: How long of wingspan does the shortest 15% of butterflies have and you know that their wingspans are…

A: Solution: Let X be the wingspan. From the given information, X follows normal distribution with mean…

Q: Find the value of the x² test statistic

A: Based on the observed and expected values and expected values,the squared distances can be computed…

Q: Suppose 170 geology students measure the mass of an ore sample. Due to human error and limitations…

A: n=170 Mean=86 Standard deviation=3

Q: A sample of size 60 will be drawn from a population with mean 31 and standard deviation 6 .Find…

A: Given that. X~N( μ , ?) μ=31 , ?=6 Z-score =( x - μ )/?

Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…

Q: Suppose that among the population of smartphone owners with 16GB of storage, the mean amount of…

A: From the provided information, Mean (µ) = 13 GB Standard deviation (σ) = 3 GB

Q: Suppose a population that has mean 90 and standard deviation 20. How many observations, n, should…

Q: The variance of one sample (22 regions) = 14.29. (a=0.01) (10')

A: Given, The hypothesis to be tested is given as follows: This is a two-tailed test.

Q: In a trivariate distribution, it is found that 113= 0.6, 123=0.5, 12 = 0.8. Find the value of 13.2.

Q: 5. If a sample of n = 86 students were taken randomly from the school, describe the distribution of…

A: Suppose it is known that the proportion of students at a local high school that take publictransit…

Q: About 7% of the population has a particular genetic mutation. 183 people are randomly selected.…

A: Given Information: Number of people, n = 183 Percentage of population has a particular genetic…

Q: when we sample from an infinite population, what happens to the standard error of the mean if the…

A: Given: Initial sample size = 1600 New sample size = 100

Q: For a population with = 15, a raw score of X = 82 corresponds to z = -0.60. What is the mean for…

A: Consider that the mean and standard deviation of a random variable x are µ and σ, respectively.…

Q: Suppose that a distribution of 300 items has mean 115 and standard deviation 4. Find the z-score of…

A: Given, mean (μ) = 115 standard deviation (σ) = 4 x = 121

Q: Total plasma volume is important in determining the required plasma component in blood replacement…

A: (b) Identify the conditions that are necessary for the calculations. The correct option is…

Q: But isn't the mean of the gamma distribution aplha (beta)

A: If alpha is a shape parameter and beta is scale parameter.

Q: Suppose that the average salary of health systems professionals is normally distributed with µ=KES…

A: The objective of the question is to find the proportion of professionals earning certain amounts and…

Q: A sample is selected from a population with u = 50. After a treatment is administered to the 16…

A: It is given that Sample size n = 16 Sample mean M = 55 Sample Sd s = 8 Population mean = 50

Question

Suppose that 0.63 of all adults own a car. Random samples of adults are taken and the proportion of each sample that owns a car was found.
31.21% of all sample proportions were greater than 0.6937. What is σp^?

σp^=

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 with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

A random sample of 160 commercial customers revealed that 32 had paid their accounts within a month of billing. Can normality be assumed for the sample proportion?
An IQ test is designed so that the mean is 100 and the standard deviation is 9 for the population of normal adults. Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 95 percent confidence that the sample mean is within 2 IQ points of the true mean. Assume that o? = 81 and determine the required sample size.
A sumple from a normal population with mu = 50 and sigma = 6 of M=48.20, . the sample mean.corresponds to tz = - 1.50 , then how many scores are in the sample?
A sample of size 50 will be drawn from a population with mean 76 and standard deviation 14. Find the 69th percentile of x.
Safari File Edit View History Bookmarks Window Help Wed 7:56 A myopenmath.com + MyOpenMath b My Questions | bartleby The length (in feet) of a student's room is considered discrete. continuous. both discrete and continuous. neither discrete or continuous. Submit Question 00
The masses of 250 students are normally distributed with mean 65kg and standard deviation 4kg. Then how many students have masses between 63kg and 73kg.
The mean wage per hour for all 4000 employees working at a large company is RM 10.50 with a standard deviation of RM 5.30. Let x be the mean wage per hour for a random sample of certain employees selected from this company.
Find the proportion of N.d. observations with a zz-score between z_1 =z1= -2.45 and z_2 =z2= 2.71. Give your answer to four decimal places.
A particular fruits’ weights are normally distributed, with a mean of 312 grams, and a SD of 20 grams. If you pick 6 fruits at random, then 16% of the time, their mean weight will be greater than how many grams? (Give the answer to the nearest gram)
Suppose that the City of Chicago is interested in potential revenues if they introduce a tolling station near O'Hare. Further suppose that the average time between cars is only 3.0 seconds; what is the average value of the distribution?
In order to have the standard error of the mean be 6, one would need to take a sample of size from a normally distributed population with a standard deviation of 42
Suppose you compile all possible samples of 25 children of preschool age in your school district. If you calculate the mean of each sample (M) and create a frequency distribution of these means, this distribution is referred to as the