In a​ poll, 37​% of the people polled answered yes to the question​ "Are you in favor of the death penalty for a person convicted of​ murder?" The margin of error in the poll was 5​%, and the estimate was made with 96​% confidence. At least how many people were​ surveyed?

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: GIVEN DATA,  n=971x=554P^=Xn=554971=0.5705CI=0.99α=1-0.99=0.01we have to find out the confidence…

Q: People were polled on how many books they read the previous year. How many subjects are needed to…

A:

Q: orty studens ha dass at an ney can speak. Complete the table. Foreign Language Gender Chinese…

A: Explanation of the answer is as follows

Q: You are interested in knowing the proportion of Stormtroopers who are true clones. How many…

A: We have given that  Margin of error =E=2%=0.02 90% confidence.

Q: Some news organization maintain a database of customers who have volunteered to share their opinions…

A: Correct option is (D).

Q: We would like to know: "What percentage of college students read the college newspaper every day?"…

A: There are two ways to draw conclusion about a population.

Q: The General Social Survey is an annual survey given to about 1500 U.S. adults selected at random.…

A: From the provided information,

Q: Consider the two questions shown below. (a) Out of apples, oranges, bananas, and pears, which fruit…

A:

Q: In a​ poll, 1,001 men in a country were asked whether they favor or oppose the use of​ "federal tax…

A: The population in the given​ problem C. All men in the country

Q: In an effort to understand the feelings of American adults about the government, one thousand…

A: Given that:  When a random sample of 1000 American adults, i.e., n=1000, was asked if they approved…

Q: According to the September 20, 1994, issue of Family Circle, 39% of Americans own guns for hunting,…

A: Calculate expected frequencies by multiplying proportion by 2000 as given below, Obs. Freq.(Oi)…

Q: Use the sample data and confidence level given below to complete parts​ (a) through​ (d). A research…

A: n = 990 and x = 564 who said "yes." Use a 99% confidence level  We have to find confidence interval…

Q: n 1995 a magazine reported the results of a poll of adult Americans in which it asked, "Have you…

A:

Q: I want a 99% confidence within 2% for the true proportion of bald people in the US.  How many people…

A: Given that, Margin of error E=0.02 Confidence level is 99% Critical value: The two tailed z critical…

Q: A survey of American households found that 1/4 had a land line, 7/12 had cable, and 1/3 had neither.…

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

Q: Do you speak a second language? Do you play a musical instrument? results are summarized in the…

A:

Q: recent study reported that 12% of people toss away about half of what they buy at the grocery store.…

A: From the given information we conduct Z test for proportion.

Q: The. Nielsen television ratings used a random sample of 2,000 homes and found that 45% of the homes…

A:

Q: A research firm needs to estimate within 3% the proportion of junior executives leaving large…

A: From the given information , E = 3% = 0.03 = 0.41Confidence level , C = 0.95

Q: The national society of acupuncturists asked a random sample of 450 adults their opinion about…

A:

Q: What is the sample proportion such that 95% of all others is symmetric around 36%?

A: 1. A sample of 200 students is taken in which 36% of all college students use an Apple i phone only.…

Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

A:

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

A: We have given that  Sample size n=945 , favorable cases x=527 Sample proportion p^= x/n 90% c.i

Q: n a city with three high schools, all the ninth graders took a Standardized Test, with these…

A: Formula : x¯ =x¯1 n1+x¯2 n2 + x¯3 n3n1+n2+n3

Q: A veterinarian is interested in the habits of the dogs who come in. He wants to estimate what…

A: The objective of the question is to conduct various statistical tests and intervals based on the…

Q: A research institute poll asked respondents if they felt vulnerable to identity theft. In the​ poll,…

A:

Q: You want to estimate the percentage of small incorporated businesses that are owned by women. A…

A: The random variable percentage of small incorporated businesses follows binomial distribution. The…

Q: In politics, marketing, etc. we often want to estimate a percentage or proportion p. One calculation…

A:

Q: It has been estimated that only about 30% of California residents have adequate earthquake supplies.…

A: The sample size (n) is 13 and p = 0.30.

Q: You plan to conduct a survey to estimate the percentage of adults who have had chickenpox. Find the…

A: It is needed to find the number of people who must be surveyed if one wants to be 93% confident that…

Q: A food company is planning to market a new flavor of ice cream. However, before marketing the…

A: Given X=112 n=400

Q: Residents in a city are charged for water usage every three months. The water bill is computed from…

A: INTRODUCTION :   HISTOGRAM: The Histogram is often useful to represent a frequency distribution…

Q: A professor using an open source introductory statistics book predicts that 15% of the students will…

A:

Q: What kind of test should I run for this question and how do I run the test?   During the first 13…

A: We will use chi-square goodness of fit statistic to test the hypothesisGiven data and calculation…

Q: (a) What is the level of significance? State the null and alternate hypotheses. O Ho: The…

A: To test the claim that the census distribution and the sample distribution agree, we will use the…

Q: A national survey of 2000 adult citizens of a nation found that 23% dreaded Valentine's Day. The…

A:

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.