Aspen trees tend to be smaller in the highlands of the park because they are subject to strong winds. While the number of aspen trees in the highlands of the park is about the same as the number of aspen trees in the lowlands of the park, the park ranger is concerned that 24 out of the 30 trees in the random sample came from the highlands. Propose a sampling method to address this concern and describe the benefit of using that sampling method.

Q: If a hurricane was headed your way, would you evacuate? The headline of a press release states,…

A: Sample size = n = 4625 Sample proportion = p̂ = 0.32

Q: What is the sampling error for an estimate of the population proportion, p = 0.36, if the true…

A: We have to find the sampling error for an estimate of the population proportion

Q: Identify which of these types of sampling is used: random, stratified, systematic, cluster,…

A: Answer:- Given statement is, "A sample consists of every 3rd student from Professor Cuellar’s…

Q: Problem: Which double sampling plan should be used for a lot size of 1500 and an LTPD of 5% with a…

A:

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: We have to find sample proportion.

Q: company in this town conducted an opinion poll to examine the party's support just before the 2014…

A: The sample proportion,i.e.,the proportion of voters who intend to vote for Pírata is calculated as,…

Q: Because of the increased cost of housing, a national real estate board wants to compare the…

A:

Q: What is the test statistic? Round your answer to three decimal places. Click…

A:

Q: Part i) The proportion of the 126 people who are living below the poverty line, 25/126, is a: A.…

A: Here given , A government official is in charge of allocating social programs throughout the city of…

Q: A study was conducted to examine the percentage of senior citizens in town X who are still working…

A: A study was conducted to examine the percentage of senior citizens in town X who are still working…

Q: which is the best sampling method for qualitative research, with a target population of 30?

A: Introduction There are 2 types of sampling method: Probability sampling method Non-probability…

Q: A poll in Canada states that 67% of all respondents favor imposing the death penalty. The poll was…

A: Given that - A poll in Canada states that 67% of all respondents favor imposing the death penalty.…

Q: Among the random and non-random sampling techniques that we have, which do you think is the most…

A: Random/Probability sampling is a technique in which each member of the population has an equal and…

Q: One of the tightest Senatorial races on Tuesday is in Maine. In a race that could prove pivotal for…

A: From the provided information, Sample size (n) = 1365 voters 696 responded that they are likely to…

Q: A researcher wants to calculate the prevalence of Alzheimer’s among members of a specific community…

A: Solution: Given information: Margin of error = E= 0.01 Population proportion = p = 0.1073 Confidence…

Q: Online gamers are divided into different age groups. A random sample from each group is selected and…

A: From the given information we want to know method of sampling.

Q: Please give two types of sampling that causes bias. Give an example of each

A: Sampling : It is the statistical method which is used to take sample from population in a different…

Q: How can you make your sampling method more reliable? (English Translation: List a way you could make…

A: Introduction: Sampling is done in practical life instead of a population census, in most of the…

Q: Why does this a situation call for a matched-pairs analysis?

A: Test is that whether there is difference between the measurements.

Q: Explain one possible advantage of using a paired sample instead of independent samples.

A: Paired samples, are also known as dependent samples, can be defined as the samples in which natural…

Q: A newspaper conducts an online poll. They are aware that since it is an online poll and the…

A: Their thinking is incorrect. The margin of error does not account for the bias.

Q: A balance used in an entomology lab to weigh grasshoppers is quite old and has been used for…

A:

Q: You are doing research on students and you are interested in looking at the differences among…

A: Given that, The collected 100 response from each class. i.e. 100 freshmen, 100 sophomores, 100…

Q: Consider the implications of selecting a sample based upon your choice as a researcher and how you…

A: If a sample is selected upon the choice of a researcher then it is expected to have a bias which…

Q: If the sample size is n=16 what is likely true about the shape of the population?

A: Solution:  Central limit theorem: The central limit theorem state that as the sample size increases…

Q: A researcher conducted a paired samples study to investigate whether local car dealers tend to…

A: Given :

Q: A pool of 500 Houston residents indicated that 16% of them participated in Women’s March on January…

A:

Q: ethod? Select all that apply

A: Sampling Methods: The sampling methods are classified into 2 types  Random Sampling or…

Q: In order manufacturer is claiming that its new 2021 SUV model will have better gas mileage than the…

A: (a) The null and alternative hypothesis is, H0:u=30H1:u>30              (right tailed/one tailed)…

Q: should their sample size be?

A: here use solvin's formula

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests."…

A: Given information: Sample of 200 buses and find that 20 buses fail the safety inspection. Let us…

Q: ve bi

A: It would be better if we enquire with all students, when the strength of class students is little.…

Q: Explain the EFFECT OF SAMPLE SIZE.

A: The size of our sample defines how much information we have and thus, in part, decides our precision…

Q: an e-store that sells cell phone accessories report that 98% of its customers are satisfied with the…

A: It is given that 98% of the customers are satisfied with the speed of delivery, which is reported by…

Q: A government official is in charge of allocating social programs throughout the city of Vancouver.…

A: Solution-: Let, X- Number of an annual income that is below the poverty line. Given: n=129,X=24 We…

Q: If the sample size is increased, the margin of error will decrease.   True or False

A: Given statement : " If the sample size is increased, the margin of error will decrease "

Q: Q.No.3. Explain the advantage of mutiple sampling plan over single or double sampling. Answer:

A: Multiple sampling plan is an extension of single and double sampling plan.

Q: who live within 20 miles of the coast in high hurricane risk counties of eight southern states. In…

A: It is given that sample size (n) is 4,625 and p hat value is 1-0.32 = 0.68.

Q: If we construct a 95% confidence interval estimate for the true proportion of all Minnesota school…

A: here given, n = 200 sample proportion  =20200 = 0.1 here for z-critical use excel command…

Q: A global corporation is currently in the process of expanding its operations, and the only option is…

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.