Belief in Haunted Places A random sample of 268 college students were asked if they believed that places could be haunted, and 41 responded yes. Estimate the true proportion of college students who believe in the possibility of haunted places with 94% confidence. According to Time magazine, 37% of Americans believe that places can be haunted. Round the answers to at least five decimal places. Use a graphing calculator.

Q: Tell wether the given value is a statistic or parameter   Fifty students who were randomly…

A: Solution

Q: Use the formula in this example to determine the sample size, n. The estimated prevalence is 16%,…

A: given data p^ = 0.1691% ci E = 0.04n = ?

Q: Please help answer all of them 1. Use the formula in this example to determine the sample size, n.…

A: 1) Given that  Population proportion p=0.25 Margin of error =E =0.07 NOTE:- According to bartleby…

Q: The Scholastic Aptitude Test (SAT) has two parts: Reading and Writing and Mathematics. Scores on…

A: Mean St.Dev Reading and writing 531 104 Mathematics 528 117

Q: those polled answered the economy. Construct a 93% confidence interval for the proportion of voters…

A: It is given that, the sample size, i..e, the sampled no. of voters, .The no. of voters, who answered…

Q: Claim: Most adults would erase all of their personal information online if they could. A software…

A:

Q: A sociologist plans to conduct a survey to estimate the percentage of adults who believe in…

A: Given thatMargin of error (E) = 4% = 0.04Significance level (α) = 1 - 0.99 = 0.01

Q: 1. À test for a certain disease is found to be 95% accurate, meaning that it will correctly diagnose…

A: Describe the following event: A: a particular person has the disease. B: a particular person does…

Q: Snoop Incorporated is a firm that does market surveys. The Rollum Sound Company hired Snoop to study…

A: As requested, I have provided answer for blanks

Q: Biology actually somewhat lower than the commonly given value of 98.6°F. This is reflected in the…

A: we have to find mean, median and mode using given data.

Q: The following data is from a sample of students asking them how many siblings they have. Number of…

A:

Q: Suppose that a student collects sample data from their local fire department asking them about their…

A: Given Information: Sample size n=59 Variable A: Number of years the firefighter has been working.…

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: Which piece of data is NOT categorical? O Your fastest running speed O Your favorite TV show O Your…

A: We have to find which piece of data is not caterogical.

Q: Yes O No What sampling distribution will you use? O Student's t O uniform O normal O binomial…

A: As requested, I have provided answer for only blanks

Q: The Centers for Disease Control and Prevention recommends that adults get between 7-8 hours of sleep…

A: From the dot plot the data are 6, 6, 6, 6, 6.5, 7.5, 7.5, 7.5, 8, 8, 8

Q: Goofy is running for Mayor of Duckburg.  He asks 40000 ducks in Duckburg if they will vote for him…

A: We have given that  Sample size n= 40000 Favorable cases x = 7900 Sample proportion p^=x/n

Q: The data in the table represent the ages of the winners of an award for the past five years. Use the…

A: The sample means of all the 10 samples is given below in the table : Sample Sample mean 48,26…

Q: Twelve plasma TVs were tested, and the number of watts per hour that they used while running for 4…

A: Introduction: Arranging the given data set in an ascending or descending order of values is…

Q: Determine if the following is an example of descriptive or inferential statistics. A survey was…

A: Descriptive statistics: Descriptive statistics is a division of statistics wherein the data under…

Q: Given a set of data sorted from smallest to largest, define the first, second, and third quartiles.…

A: Explanation: First quartile:   The first quartile is the median of the lower half of the data below…

Q: A survey was conducted that asked 972 people how many books they had read in the past year. Results…

A: From the provided information, Sample size (n) = 972 Sample mean (x̅) = 14.1 Standard deviation (s)…

Q: How should the researcher write up their findings? On average, adults spend more time talking on the…

A: We have to perform hypothesis test for the difference of means.

Q: Assume that a sample is used to estimate a population proportion p. Find the margin of error E that…

A: Givenconfidence=90%n=369x=133p^=xn=133369=0.3604

Q: In a recent household telephone survey of 2,810 adults in a certain country, 24% reported that they…

A: d) From the given information, The sample size is 2810 and p^=0.24 Confidence level is 99%…

Q: A scientific study was conducted to determine the hours of sleep that college students get per…

A: The sample observations of sleeping hours by  sample college students…

Q: Eye Color f % Amber 5 4.81% Blue 8 7.69% Brown 82 78.85% Gray 3 2.88% Green 2 1.92%…

A: From the frequency table, the percentage for eye color amber is 4.81%, the percentage for eye color…

Q: report answers to each of the two questions below. a. What is the mean, or average, test grade for…

A:

Q: Here are the number of passes Brett Farve completed during each season. 302, 304, 308, 314, 318,…

A: Arrange the given data in ascending…

Q: Find the: A. Mean B. Median C. Mode,

A: Given data: Classes Frequency 13 - 18 4 19 - 24 6 25 - 30 8 31 - 36 3 37 - 42 4 43 -…

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.