time a 10-year-old American child spends playing outdoors per day is between 19.28 and 24.08 minutes.

Q: What is the median number of fossils found by students?

A: Median is defined as the middlemost observation present in a dataset, when the data set is arranges…

Q: In October 2017, the Gallup Poll asked a sample of 10281028 U.S. adults, "Are you in favor of the…

A: Margin of error: It is the vary of values below and higher than the sample data point in a…

Q: In order to have a margin of error of 2%, people should be surveyed.

A: we are given that 24% people consider summer as their favourite season (p) = 0.24 to find  number of…

Q: Your professor wishes to estimate the proportion of high school students enrolled in college-level…

A: Given: margin of error of 3.5 percent 99% confidenp p= 18.3%

Q: what is the average number of traffic accidents

A: Discrete series means where frequency  of a variable are given but the variable is without class…

Q: A software engineering firm began stocking flavored sparkling water in addition to soda in the break…

A: Given data, n=180 x=45 sample proportion (p)=x/n= 45/180= 0.25   The z value at 95% confidence is…

Q: In a recent poll, 130 people were asked if they liked dogs, and 19% said they did. Find the margin…

A: Find z-critical value:…

Q: A Seattle consumer agency believes that plumbers’ rates are too high and wants to estimate the mean…

A: GivenConfidence Interval(c)=95%Margin of Error(E)=3%=0.03Let…

Q: What is the result of 2.58×0.12, including correct significant figures?

A: Given, 0.58*0.12

Q: What is the Margin of Error, E?

A: Since the sample size is small and population SD is unknown then we will use critical value based on…

Q: In a survey of 1009 parents of children ages​ 8-14, 74​% say they are willing to get a second or​…

A: Given n=1009 P=74%=0.74 E=2%=0.02

Q: 5. What is the standard error of the estimates (Serror) in thousands of dollars?

A: We are provided with incomplete ANOVA table  4) We have to find R2 and adjusted R2     R2 = 1 -…

Q: Explain the concept ofrepresentative sampling.

A: Representative sampling: A representative sample is a subset of a population that seeks to correctly…

Q: A report says that the average amount of time a 10-year-old American child spends playing outdoors…

A: A report says that the average amount of time a 10-year-old American child spends playing outdoors…

Q: A random sample of 2,000 driver's license applications found that 17% reported their eye color as…

A: Solution: Given information: n= 2000 Sample size  p^= 0.17 Sample proportion Assumed Confidence…

Q: If the sociologist can sample 100 women, what will the margin of error be?

A:

Q: ung distributibn of the sample means

A: The given graph is, Observe that the given graph looks like  normal distribution . For a normal…

Q: The U.S. Census Bureau says that 52-question 'long form' received by households during 2000 census…

A: let the sample mean be = 36.8 and let the sample standard deviation = 4

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

A: Given information- We have given a report from an independent- measures study. F(3, 48) = 2.95, p…

Q: Describe about Margin of Error?

A: The area of variation of values above and below the sample statistic in a  computed confidence…

Q: Define substantive significance?

A: If the variable has a substantial impact on the dependent variable, a coefficient is substantively…

Q: In a survey of 1200 workers, 35% said they eat at home during a typical work week. What is the…

A:

Q: What is the proportion of the total incidence of CHD in smokers that is attributable to smoking? Use…

A: Given Information: Total no. of participants=4560No. of Total smokers=2249No. of smokers having…

Q: Although Nielsen Media research determined the precise proportion of all Americans watching the…

A: Given : Nielsen Media research determined the precise proportion of all Americans watching the super…

Q: What is Margin of Error?

A: Margin of error: The margin of error is defined as a statistic that gives the amount of sampling…

Q: I want to be sure to obtain a margin of error of ±5 % in a poll asking whether people support…

A: Given information: Margin of Error=+/-5%=0.05 Let level of significance=0.05 Let the proportion of…

Q: What would be an example of an exposure ratio threshold?

A: Exposure ratio is relevant in a case control study. It involves the following concepts:1)case group…

Q: Addmissions officer sampled 124 entering freshmen and found that 35 of them scored less than 530 on…

A: According to the provided information, x=35 n=124

Q: What is the margin of error associated with a survey of 1034 college students if we want to be 97%…

A:

Q: A November 2018 Gallup Poll of 1075 U.S. adults found that 627 are satisfied with the total cost…

A:

Q: In a Harris poll of 500 human resource professionals, 230 said that body piercings and tattoos were…

A: Here, the confidence level or level of significance is not mentioned. In general, it would be…

Q: Does it make sense ? Why or why not? A pollster plans to improve survey results by only conducting…

A: A pollster plans to improve survey results by conducting polls in which the margin of error is zero.

Q: recent poll reports that between 53% and 59% of voters will vote for president george in the next…

A: The confidence interval is (53%, 59%).

Q: What is assignable variation?

A: SPC is concerned with quality of conformance. SPC is defined as "the application of statistical…

Q: hat is the shape of distributio

A: Gien: Stem and leaf plot.

Q: A uSa today/CNN/Gallup survey of 369 working parents found 200 who said they spendtoo little time…

A: It is given that the number of parents said they spend too little time with their children because…

Q: What is the margin of error for a poll with a sample size of 1450 people? If you round the answer to…

A: We know that   Margin of error  for a pole with n people is given by   Margin of error=±100n

Q: A researcher plans to conduct a survey. If the population on High City is 1,000,000 find the sample…

A: To calculate the sample size (n) given the population size (N) and a margin of error (e), we use…

Q: A poll is conducted and shows that 46% of homes have a landline, with a margin of error of 3%. a.…

A: Given that a poll is conducted and shows that 46% of homes have a landline with a margin of error of…

Q: Suppose that the results of a survey show that 53% of people consider summer as their favorite…

A: Given that Results of a survey show that 53% of people consider summer as their favorite season.…

Q: A Verizon researcher compared the number of text messages sent by a sample of teenage boys to the…

A: a) In this case, the Verizon researcher compared the number of text messages sent by a sample of…

Q: 4. What happens to the accuracy on the left margin?

A: A map is a graphical representation, for an established scale, of a part of the earth's surface,…

Q: Explain about Margin of Error?

A: Margin of error: Margin of error is a range of values that lie above and below the sample statistic…

Q: What is the symbol for the best point estimate for the true proportion? What is the symbol for the…

A: A point estimate is defined as the single value that is calculated from the sample data to estimate…

Q: Suppose the mean miles per gallon for a sample of 70,000 new cars and light trucks sold in the…

A: The size of the sample  = 70000 new cars and light trucks

Q: report says that the average amount of time a 10-year-old American child spends playing outdoors per…

A: Given report says that the average amount of time a 10-year-old American child spends playing…

Q: A researcher plan to conduct a survey about how capable the students are in conducting research. If…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is, Use EXCEL…

Q: Suppose you go to the grocery store and spend $61.85 for the purchase of 14 items. What is the mean…

A: 6. The mean is the average value of the data set and is computed by summing up all the observations…