A survey was conducted in a municipality. It was decided to stratify the municipality into 5 geographical areas. Within each stratum, a sample was chosen by simple random sampling. question: Suppose in problem #1, it is desired to estimate the mean household size to be within +- 0.5 from the true mean,and at the 90 percent confidence level, what is the required sample size? How will this be allocated to the five

Q: 3. (Refer to Krejcie and Morgan Table) Considering the 1, 200 students in the School of Teacher…

A: Given information: Method to be used: Krejcie & Morgan sample size determination method…

Q: Fill in the missing data. (Round your p-value to 4 decimal places, mean values to 1 decimal place,…

A: let we make the table for given dataDays Worked Last Year by 23 employees Department days worked…

Q: 5. Find the minimum sample size n needed to estimate the population mean for the give ralues of c,…

A: a. Given information; c=0.90sd=6.8E=1 Significance level is α=1-c=1-0.90=0.10 From the standard…

Q: a. What is the mearn the original samples have n = 4 scores? b. What is the mean for the combined…

A: From provided information; one sample has a mean M1= 8 and second sample has mean M2=16, two samples…

Q: The life spans of three randomly selected tires are 32,100 ​miles, 41,900 ​miles, and 37,000 miles.…

A: By empirical rule: it says that for a normal distribution all observed data lies within three…

Q: 5. Now that you have descriptive information about the sample, determine population from which it…

A: Population is nothing but the total number of individuals under study . Sample represents the…

Q: If the population proportion is 0.7. A researcher wants the margin of error to be 0.20 and the level…

A: From the provided information, Population proportion (p) = 0.7 Margin of error (E) = 0.20 Confidence…

Q: If the population mean is 132, the sample mean is 136, () = 40, and N = 18, what is z?

A: Population Mean =132Sample Mean =136

Q: Problem : In Dodge's CSP-1, it is desired to apply sampling inspection to 1 item out of every 15…

A:

Q: i. What is the median waiting time? ii. Determine the mean and standard deviation waiting time for…

A: i. The data in the ascending order is 7, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 11, 12, 14, 14, and 15.…

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A:

Q: FIND THE TEST STATISTIC VALUE AND ITS CONCLUSION FOR THE PROBLEM BELOW. THE PRESIDENT OF A SERVICE…

A: Given:Population proportion (P0)=60%=0.6Sample proportion (p)=64%=0.64Sample size (n)=500,000Level…

Q: 4. A sample consisting of 430 mean and 765 women was asked various questions pertaining to…

A:

Q: 3. Assume that you want to test the claim that the paired sample data come from a population. Use…

A: Given, sample size = n = 10 sample mean of difference = x¯d = -0.9 Sample standard deviation of…

Q: A recent survey by the Indiana State University Department of Athletics aims to evaluate…

A: Given that A recent survey by the Indiana State University Department of Athletics aims to evaluate…

Q: Prof. Gersch constructs a 95% CI for an unknown population mean. If Prof. Gersch instead wants to…

A: We have to find correct answer from given options..

Q: With systematic sampling, the sample may be biased if:   Select one: A. there is a systematic…

A: Option A there is a systematic pattern in the data.  If the population placed on the list is…

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A: applying one way ANOVA on above data:   Mean n Std. Dev Variances budgets 257.4 5 11.7388…

Q: ppose that 97% of Monarch butterflies migrate to Mexico in winter. What is the smallest sample size…

A: Given data, 97% of Monarch butterflies migrate to Mexico in winter p=97%=0.97 What is the smallest…

Q: 3). Suppose that a sampling frame lists all households in Tampa. Investigator would like to estimate…

A: The objective of the question is to estimate the average amount spent on food per week by all…

Q: 1. Using an evenly distributed data population of 8,000 samples, how many Would fall between a…

A: From the provided information, Population size (N) = 8,000 The percentage of population data fall…

Q: Consider the following random sample of data: -8, -1, 1, -9, 4, 0, -7, 4, 0, 82 a) What is the mean…

A: (a) Here, = Sum of the data values. The sum of all the data values is 66. Now, Hence, Mean = 6.6

Q: 3) 100 people were surveyed to see if they were aware of a new product. The population of interest…

A: Given: 100 people were surveyed. Therefore, the sample size is n=100. 68 people were familiar with…

Q: Suppose that the standard error for the sampling distribution of the mean of time spent on an App…

A: From the provided information, Standard deviation of sampling distribution = 10 minutes when sample…

Q: The XYZ Corporation is interested in possible differences in days worked by salaried employees in…

A: The question is about ANOVAGiven :To find :Are the mean annual attendance rates the same for…

Q: Consider the following random sample of data:   12, 27, 28, 14, 23, 7, 8, 3, 110, 19     a)…

A: Sol:- a) To find the median of the sample data, we first need to arrange the values in ascending…

Q: Suppose a certain Statistics instructor wants to estimate the proportion of students who enjoy…

A: since estimate for proportion is not known therefor we take p⏞=0.5 margin of error=E= 0.03 level of…

Q: The first student enrolled in one Statistics class was selected randomly and then every 8th student…

A: Here in the above question 1 , the number of times per week is quantitative-discrete. 2- in this…

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

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

Q: A recent survey by the Indiana State University Department of Athletics aims to evaluate the…

A: Here, estimated proportion, p^ = 175/250=0.70 population size, N= 13000 Sample size, n = 250

Q: Consider the following random sample of data: 13, 24, 29, 16, 22, 5, 10, 1, 105, 18 a) What is the…

A:

Q: Income Tax and the IRS. In 2010, the Internal Revenue Service (IRS) sampled 308,946 tax returns to…

A: a)Sampling error:When a sample is used to estimate a population characteristic the error resulting…

Q: Suppose an instructor wants to know the average height, gender distribution, academic performance…

A: According to the answering guidelines, we can answer only three subparts of a question and the rest…

Q: 1. If you wanted to conduct a survey to determine the mean shoe size of American adults, how could…

A: The SRS makes sure each participant in the pop. has an equal chance of being selected in the…