4. Ms. Ellis expected 50 families to attend parent-teacher conferences, but 60 families attended. What is the percent error? A 0.16% 16-% 20% O 183-% 3.

Q: Q12. If 150 households were surveyed out of which 120 households have internet fiber cable, then…

A: Given Data: x=150-120=30 n=150

Q: 2. A birthday party host planned for 20 people, but 17 actually attended. What is the percent error?

A: Given that a birthday party host planned for 20 people, but 17 actually attend. From these data it…

Q: School of Rock   Guitar Bass Drums Keyboard Total 6th grade 17 14 20 17 68 7th Grade 11 11 19 15 56…

A:

Q: In a sample of 550 students, 80% prefer online resources versus printed materials. The standard…

A:

Q: In preparing a report on the economy, we need to estimate the percentage of business that plan to…

A:

Q: If the population mean is 12.45, what is the mean of the sampling distribution of its means?    If…

A: It is stated by the Central Limit Theorem that when the sample size is large which means it is…

Q: Which is a statistical question? How old was George Washington when he became president? How many…

A: Statistical Questions:-    A question is a statistical question of it can be answered with date that…

Q: 13. Market research statistics show that 39% of U.S. households own dogs, 34% own cats and 23% own…

A:

Q: If the distribution is approximately mound-shaped, what is the proportion less than 80.12 ? 15

A: Find the value of z using mean and standard deviation.

Q: 13. Andi wants to know if there is a difference in income if he is studying and not attending…

A: Calculate the Sample means and Standard deviations for two groups

Q: 2. Use the data from the Venn diagram below to answer these questions. (a) How many non-adult dogs…

A:

Q: A survey question for a sample of 150 individuals yielded 75 Yes responses, 55 Noresponses, and 20…

A: The point estimate of the proportion of character A in the population is (No of individuals having…

Q: Henry conducts a survey at his middle school to determine the students' favorite after-school…

A: There are four main types of probability sample. Simple random sample: In this, every member of the…

Q: 5. You plan to conduct a survey on your college campus to learn about the politica awareness of…

A: Given confidence level is 95% Significance level is 5% ME=5%=0.05 Let us consider the true…

Q: According to the following two-way table, what percent of people in the sample taken naps?   male…

A: Given, The contingency table,   Male Female Total nap 25 30 55 does not nap 35 10 45 Total…

Q: a. Determine the sample proportion, p, of college students who own shares of stock. b. If the…

A:

Q: A birthday party host plan for 20 people, but 17 actually attended. What is the percent error?

A:

Q: 3) A report on the nightly news broadcast stated that 10 out of 108 households with pet dogs were…

A: Given data A report on the nightly news broadcast stated that 10 out of 108 house holds with pet…

Q: Which survey question has the least amount of bias? O a) Why are vegetables good for you? b) Why are…

A: Answer: Bias: Bias is any systematic failure of a sampling method to represent its population. Or…

Q: 8. A research report from an independent-measures study states that there are significant…

A: The given information is as follows: F(3, 48) = 2.95, p < 0.05.

Q: In a survey, 150 shoppers were asked whether they have access to a computer at home and if they have…

A: Here we have to use the concept of percentage.

Q: If the proportion of Heads is .45 out of 200 flips, what is the p-value?

A: The proportion of Heads is .45 out of 200 flips.

Q: A medical researcher wants to do a study on the proportion of knee replacement surgeries that result…

A:

Q: The proportion of all passenger who experiencing flight delay is sample statistics and can be…

A: Solution

Q: Why a sample size of n=100 is more likely to have a percentage of pop songs closer to the population…

A: Sample of size 32 or greater is consider as large sample .

Q: The following table represents the survey conducted in a school.   Male female Chicken fried steak…

A:

Q: A survey asks: Which online services have you used in the last month: - Twitter Facebook - Have used…

A:

Q: (a)  Do you think that the percentage of all American movie-goers who think the popcorn is…

A: Given that 12% of a random sample of 25 American movie-goers thought the popcorn sold at the movie…

Q: 19 2. How can you tell whether a greater percent of customers surveyed selected veggie burger or…

A:

Q: A geography student in Parkville, Missouri is conducting a housing survey, including questions about…

A: It is given that she knows that about 38% of the people in Parkville live in apartments, and wants…

Q: What is the margin of error for a poll with a sample size of 2000 people? Round your answer to the…

A:

Q: What are the odds of 1 in 50 as a percent?

A: The odds in favor of event A is P(A)/(1 - P(A)).

Q: In a survey, 150 shoppers were asked whether they have access to a computer at horme and if they…

A: Solution: The given table of data is

Q: Given a bag with 13 red marbles, and 42 blue marbles, what is the probability of pulling two…

A: There are 13 red marbles and 42 blue marbles.

Q: If 471 households were surveyed out of which 385 households have internet fiber cable, what is the…

A: Among 471 households 385 households have internet fiber cable, therefore 471-385 = 86 households…

Q: 1(a). What is the point estimate for the proportion of people who liked the chocolate bar?

A: here use given data

Q: a) What proportion of workers answered yes to the survey? b) What was the margin of error?

A: Here, the 95% confidence interval for the proportion of workers that answered 'yes' is (0.62, 0.73).…

Q: Part B Which teacher was voted favorite by the greater number of students in the fifth-grade class?…

A: In the fifth grade Class, Total Number of students = 48 Total Number of girls = 25 Total Number of…

Q: A sample of Reese's pieces contains the following: 23 Orange, 14 Brown, 18 Yellow.  What is the…

A:

Q: 1. A report in a national magazine estimated that 39 percent of. . of their wives' eyes. Bill…

A: Let X be the number of American husbands who do not know the color of their wives' eyes. A sample of…

Q: d. What is the saving level that separates the top 25% of the workers surveyed from the rest?

A: Instruction :  The saving level that separates the top 25% of the workers will be the value present…

Q: Find out if illiteracy and criminality are associated or independent by using the Proportion Method.

A: The given data can be described as   Criminal  Not criminal Total Literates 8 (AB) 707 (Aβ) 715…

Q: 1. In your study, the population size is 10,000. What is the size of your sample if you allow 2%…

A: here AS PER GUIDELINES I HAVE CALCULATED FIRST MAIN QUESTION    here given population size  N =…

Q: et's say scientists studied 880 people to determine the effects of a cholera vaccine, and the…

A: Given: 880 people  were studied to determined effecf cholera

Q: The registrar’s office at ACC predicts that 90% of the 6,950 spaces open in various math classes…

A:

Q: what is the probability of flipping a coin 112 times and getting heads 3 times? round your answer to…

A:

Q: la survey, 200 shoppers were asked whether they have access to a computer at home and if they have a…

A:

Q: A research report from an independent-measures study states that there are significant differences…

A: Given, A research report from an independent-measures study states that there are significant…

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.