A survey asks a random sample of 1500 adults in Ohio if they support an increase in the state sales tax from 5% to 6%, with the additional revenue going to education. Let X denote the number in the sample that says they support the increase. Suppose that 40% of all adults in Ohio support the increase. The standard deviation of X is?

A survey asks a random sample of 1500 adults in Ohio if they support an increase in the state sales tax from 5% to 6%, with the additional revenue going to education. Let X denote the number in the sample that says they support the increase. Suppose that 40% of all adults in Ohio support the increase. The standard deviation of X is?

Name: A survey asks a random sample of 1500 adults in Ohio if they support a
Uploaded: 2024-03-20T07:06:27.000Z
Channel: Bartleby
Description: A survey asks a random sample of 1500 adults in Ohio if they support an increase in the state sales tax from 5% to 6%, with the additional revenue going to education. Let X denote the number in the sample that says they support the increase. Suppose

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: Suppose that you are interested in determining the average height of a person in a large city. You…

A: Solution: Given information: n= 400 Sample size x=63 inches Sample mean s= 6 inches Sample standard…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: The bone density test scores that can be used as cutoff values separating the lowest 2% and highest…

Q: An economics professor decides to curve the grades of his class. In doing so, he decides to make it…

A: Given data: An economics professor decides to curve the grades of his class. In doing so, he decides…

Q: standard deviation is s = 13.6 beats per minute. a. What is the difference between the pulse rate of…

A: HERE GIVEN Mean=X¯=77 Beats S=13.6 Beats

Q: A population of scores has mean 80. in this population, a score of X= 86 corresponds to z= +2. what…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: Given,μ=0σ=1 P(Z<z)=0.29

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Finding the value of z at lowest 14-1.08032 ( From Excel =NORM.S.INV(0.14))Finding the value of z at…

Q: The mean score on a driving exam for a group of driver's education students is 68 points, with a…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

A: From the provided information, Mean (µ) = 0 Standard deviation (σ) = 1 X~N (0, 1) Here X be a random…

Q: he average number of Hate Crimes in the United States per year (1991 to 2018) is approximately 7900…

A: Given: Population mean μ=7900 Population standard deviation σ=1200 X ~ N (7900, 12002 )

Q: Suppose that, for a certain mathematics class, the scores are normally distributed with a mean of 75…

A: The bottom cutoff for receiving an A grade is obtained below: From the given information, the value…

Q: During rush hour, the traffic speed on a busy highway is found to have mean 42 mph and standard…

Q: the average grade is 84 with a standard deviation of 4. What is each grade for -1 2 0 1.5 -1.25

A: Given Mean μ=84Standard deviation σ=4 The formula for Z score isZ=X-μσX=Z×σ+μ

Q: of driver's education students is 68 points, with a standard deviation of 4 points. Apply…

A: Given

Q: have a mean GPA of 2.57 with a standard deviation of 0.71. how many of the 850 new students have a…

A: Given that. X~N( μ , ?) μ=2.57 , ?=0.71 Z-score =( x - μ )/?

Q: Alexander Borbely is a professor at the University of Zurich Medical School, where he is director of…

A: Hrs Xi Freq fi pi=fi/200 xi* pi pi*(x-7.9)^2 3.5…

Q: 2000 freshmen at state university took a biology test. the scores were normally distributed with a…

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

Q: The weights for a population of North American raccoons have a bell shaped frequency curve with a…

Q: The following table shows the number of people that have either 0, 1, 2 or 3 cars registered in…

A: The provided information is as follows:The total number of samples is .The data is given as…

Q: At a hair salon, customers arrive at the rate of 3 customers per hour. The standard deviation of the…

A: Standard Deviation: A standard deviation is a unit of measure of data spread in proportion to the…

Q: the mean is 146, and standard deviation is 35. A score of 181 is how many z-scores above the mean?

Q: Assume that you have been provided the following information for a sample of cars The covariance…

A: The covariance between weight and miles per gallon is equal to -4.0 pound-miles. The standard…

Q: Assume that you have been provided the following information for a sample of cars The covariance…

A: The two variables of interest are: "miles per gallon" and "weight".The sample covariance (as the…

Q: Suppose that the blood pressure of the human inhabitants of a certain Pacific island is distributed…

Q: A 1995 study shows that since records were first kept in a meteorologist's hometown, the average…

A: Solution: Let X be the temperature during the month of May. From the given information, n=25,…

Q: The average salary for a certain profession is $80,000. Assume that the standard deviation of such…

A: We have to find correct answer..

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

Q: The amounts of electricity bills for all households in a particular city have an approximately…

Q: Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean…

Concept explainers

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.

Topic Video

Question

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 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Data Collection, Sampling Methods, and Bias$

Learn more about

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

Similar questions

One year consumers spent an average of $22 on a meal at a resturant. Assume that the amount spent on a resturant meal is normally distributed and that the standard deviation is $3. Complete parts (a) through (c) below. Between what two values will the middle 95% of the amounts of cash spent fall?
Use z scores to compare the given values. The tallest living man at one time had a height of 238 cm. The shortest living man at that time had a height of 142.4 cm. Heights of men at that time had a mean of 175.45 cm and a standard deviation of 5.59 cm. Which of these two men had the height that was more extreme? ... Since the z score for the tallest man is z = 0 and the z score for the shortest man is z = the man had the height that was Im- more extreme. (Round to two decimal places.) shortest tallest
Assume that ﬁnal exam scores in a given course are approximately normally distributed with a mean of 75 and a standard deviation of 10 points. In a class of 200 students, how many would you expect to fail the exam (i.e., score less than 60) (note: scores can only be approximately normally distributed, because the minimum score is 0, but this should not alter the answer, given how large the mean is relative to the standard deviation).
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.
In nutrition, the recommended daily allowance of vitamins is a number set by the government to guide an individual's daily vitamin intake. Actually, vitamin needs vary drastically from person to person, but the needs are closely approximated by a normal curve. To calculate the recommended daily allowance, the government first finds the standard deviation and the average need for vitamins among people in the population. The recommended daily allowance is then defined as the mean plus 2.7 times the standard deviation. What fraction of the population will receive adequate amounts of vitamins under this plan? Click here to see page 1 of the table for areas under the standard normal curve. Click here to see page 2 of the table for areas under the standard normal curve. The fraction of the population that will receive adequate amounts of vitamins under the given plan is (Type an integer or decimal rounded to the nearest thousandth as needed.)
The revenue of a shop is approximately normally distributed with a mean of $4500 and a standard deviation of $800.Find the revenue, y, for which 33% of revenue are below it.
An employment evaluation exam has a standard deviation of 15. One particular exam with raw scores of 142 and 165 have z scores of -0.5. Find the mean of the distribution. 150 2 1603 1495 135 2
A population has a mean μ = 70 and a standard deviation o=36. Find the mean and standard deviation of a sampling distribution of sample means with sample size n = 81. H=(Simplify your answer.) = (Simplify your answer.)
The board of examiners that administers the real estate broker’s examination in a certain state found that the mean score on the test was 450 and the standard deviation was 50. If the board wants to set the passing scores so that only the top 5% of all applicants pass, what should the passing score be? Assume that the scores are normally distributed.
Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15.