what sample size n is required to estimate the true proportion of grain facilities that can detect 1% GM soybeans in  shipment to within a margin error of 0.05 with 95% confidencce?

Q: There are 5000 observations in a data set. 10% of the data are “1”s, while the rest are “0”s. If we…

A: The data set consist of 5000 observations. The observations are 0's and 1's. An amount of data…

Q: . The estimate of the population proportion is to be within plus or minus 0.10, with a 95% level of…

A:

Q: A randomly selected car salesman's annual salary (in thousands) can be estimated by a random…

A: 1. Description of the Distribution of XThe distribution X∼χ2(df=53) indicates that the random…

Q: Make a boxplot of the following sample of UPS package weights (in Ibs) and determine the outlier(s):…

A: Arrange the data in non descending order. 0.39 1.2 2.1 21.9 23.2 25.4 26.1 28.3…

Q: Parking at a large university can be extremely difficult at times. One particular university is…

A: Solution: The 95% confidence interval for the population mean μ is  Lower limit = 9.19 Upper limit =…

Q: A certain chemical process is run 10 times at a temperature of 65°C and 10 times at a temperature of…

A: To determine: Estimate the mean yield and the uncertainty in the estimate of each temperature. To…

Q: The Kentucky Department of Agriculture is concerned about the number of acres of farmland being…

A: From the given information, The independent variable (IV) is the number of years and the dependent…

Q: When estimating the population proportion, how large a sample is needed to be 95% confident that the…

A: Given:  The margin of error is equal to 0.05  Confidence Level : 95%  It is asked to compute the…

Q: A random sample of size 344 results in 150 successes. Build a 94% CI for the population proportion…

A:

Q: A random sample of 344 Californians found that 132 support Measure A. Build a 85% CI for the…

A: (a)   Check the conditions of at least 5 successes and 5 failures. The conditions are checked…

Q: Department of Agriculture is concerned about the number of acres of farmland being withdrawn from…

A: From the given information the regression equation will be Acres (in Millions) = 2.743+0.0007*Number…

Q: The Wind Mountain archaeological site is located in southwestern New Mexico. Wind Mountain was home…

A: Given sample is 85, 60, 90, 85, 75. Sample mean=79, from the excel function, =AVERAGE(N21:N25)…

Q: b. $952.23 front-end estimation: $ $355.77 rounding estimation: $

A: Front-end estimation: 900-355=655 Front-end estimation=655

Q: Find sample size. CI= 75% E=.06 sample prop.= 41/81

A: The random variable X follows binomial distribution. We have to use normal approximation to binomial…

Q: Calculate the sample size from the following information:  E = 0.5, a= 5, c = 0.95

A: Solution-: Given: σ=5,M.E.=E=0.5,c=0.95 We find sample size, n=?

Q: In Oregon, 24.9% of the 1.998 million dosages given have been to people whose vaccination is…

A: Given that  In Oregon, 24.9% of the 1.998 million dosages given have been to people whose…

Q: Recently, 18.3% of visitors to the Travelocity website hailed from the Google search engine. A…

A: It is given that Sample size n = 130 Population proportion p = 18.3% = 0.183

Q: Find the sample size required for a margin of error of 3.4 percentage points, and then find one for…

A: Given information: Given that the margin of errors are m1 = 3.4% and m2 = 1.7%. The shortcut formula…

Q: Make the analysis with the Likert scale of the following data

A: Given information: The data represents the ratings given by 6 groups of Encuestado.

Q: Several factors influence the size of the F-ratio. For 1a and 1b, select the pair that best…

A: If we increase the difference between the sample means affects the numerator of the F−ratio. As the…

Q: A sample of two hundred and fifty families showed that ninety one owned at least one car. Find an…

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Q: Part 1 of 2 (a) Construct a 95% confidence interval for the difference in mean lifetime between the…

A: Followings are the Explanation of the Question  Use the Paired t test to Construct the 95 %…

Q: If necessary, use the appropriate z-score table to answer the following: a.) What is the area (to…

A: Let Z ve the random variable from normal distribution then we will find the corresponding areas and…

Q: A curious farmer undertakes the following activities in her farm. 1. She plants 80 tree seedlings on…

A: There are four activities given in this question along with the data generated from them. Heights…

Q: An environmentalist wants to find out the fraction of oil tankers that have spills each month.…

A: The objective of this question is to estimate the proportion of oil tankers that had spills. This…

Q: Determine the sample size needed to estimate  for the given situation. E = 4,  = 35, (1 - ) = .90…

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Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no…

A: Given;margin of error(E)=2.5%=0.025at 90% confidence level, significance…

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A:

Q: Determine the point estimate. A survey of 400 non-fatal accidents showed that 152 involved the use…

A: Given that :  Sample size (n) = 400 X = 152  Point estimate ( p cap) = x / n By using this formula…

Q: It is claimed that the weight of canned cans produced by the firm should be 650 g, but this is not…

A: From the given information, Null Hypothesis: H0: The mean weight of the firm is equal to 650 g.…

Q: Biologists studying horseshoe crabs want to estimate the percent of crabs in a certain area that are…

A: The one sample z-confidence interval for the population proportion is given as follows:

Q: Identify the unit, population of units, variable of interest, statistical population, and sample of…

A:

Q: Estimate the marks obtained by a student in Statistics who obtained 32 marks in Accountancy.

A: Step-by-step procedure to obtain the regression using the Excel:   Enter the data for X and Y in…

Q: me is really 18 hr, how likely is it to find a sample as than) the one the test engineer found?…

A: *Answer:   Thus, P(x¯<17.2)≈P(Z<−2.20)≈0.0139. So the likelihood of obtaining a test result…

Q: When computing a 95% CI for a population mean, the ____ is used as the point estimate.

A: Given that  When computing a 95% CI for a population mean, the ____ is used as the point estimate.…

Q: Please double check my answers.

A: Step 1: Calculation of the mean and the standard deviation:CarRearFrontdifference…

Q: Samples of laboratory glass are in small, light packaging or heavy, large packaging. Suppose that 2%…

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.