what key assumption did you make to determine your answer for the size of the population

Q: By how many times does the sample size have to be increased to decrease the margin of error by a…

A:

Q: What is the scale factor of the enlargement

A: From given figure, we can find length of AC=4 units and length of A'C'=12 units. Now , scale factor…

Q: Explain why a census is often not the best way to obtain information about a population.

A: Census:Census is defined as the method of data collection, which obtains data from every individual…

Q: A survey item administered at the end of a training program asked participants their opinion about…

A: The given contingency table is, The formula for calculating the expected count is, Calculation of…

Q: Suppose you have traveled back in time to march 2020 and we are interested in finding out how many…

A: Given: Traveled back in time to march Population in U.S. 331 million. Active cases in March 2020 in…

Q: What means supplementary

A: When sum of two angles are 180° then angles are supplementary angles. Suppose one angle is 70° and…

Q: How many cases are there in this data set 864 216 432 1 forest

A: We have given that the resulting spatial pattern could be tested to see whether the pattern is…

Q: How to interpret the result according to the table below?

A: # option (NS) correct

Q: what is the symbol for the sum of the population?

A:

Q: Suppose you have traveled back in time to March 2020 and we are interested in finding out how many…

A: you can consider the two thingpopulation and total covid19 cases.In march 2020 US has the total…

Q: what does (). mean and how to calculate it)

A: Find ∑j=066j as follows. Here 6j denotes the combination formula 6Cj. The combination formula is…

Q: Describe about the difference between population means>

A: Assuming that we are comparing the difference between two population means which are defined as The…

Q: Blood pressure Diastolic blood pressure in adults is normally |distributed with µ = 80 mm Hg and o =…

A: Solution: Given information: Let X be the diastolic blood pressure in adults is normally distributed…

Q: Data on income (in thousands of dollars), education (years), experience (years), and age (years) for…

A: a) The regression equation is given as, Y=a+bX+eb=Cov (X,Y)s2a=Y¯-bX¯ The test hypotheses are given…

Q: What is the incidence of CHD in smokers that can be attributed to smoking? Use the already rounded…

A: Cohort study used to establish the disease by following over a period of time among the exposure. It…

Q: Steps in Sampling to determine the population of dandelions in your yard?

A: To count the dandelions, we'll first create a grid, then use the computer's random number generator…

Q: Think of research situation where you want to compare two or more population proportions and state…

A: Hypothesis is an assumption about the population parameter. The population proportion (P) is the…

Q: the law of large numbers?

A: The law of large numbers states that as the sample size increases, the sample statistic comes closer…

Q: What is meant by under 5 mortality in a given lifetable?(actuarial mathematics)

A:

Q: A researcher wants to know how long it takes, on average, for a certain species of bacteria to…

A: Given data is 8.1,7.6,7.7,8.3,8.5,7.9,8.1,8.2,8.2,7.9,8.6,8,7.9,8.5,8.2,8.2,8sample size =…

Q: What is the Sum of Squares Formulas for Population?

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Q: Discuss various methods of performing interpolation with examples?

A: Dispersion is used to measure spread of the data. various measure of dispersion are:   (1) Standard…

Q: Average Tormado Damage for the 50 States and Pue rto Rico (1950 - 1999) 25- 20- 10- 5- 10 20 30 40…

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Q: Find the median weight of these students.

A: Sort the given data in ascending order (smallest to largest) 152, 153, 160, 165, 169, 171, 172, 174

Q: ______________ tell us how many observations were recorded, and how frequently each score or…

A: To find:   ______________ tell us how many observations were recorded, and how frequently each…

Q: at is the excel formula to find the population mean? Can you show an

A: The population mean is the average value of the population and is computed by summing up all the…

Q: A professor use chi-square test to examine the relationship between smoking and colon cancer. He…

A: Number of rows, a = 2 Number of columns, b = 2

Q: how do you find a population?

A: Introduction: Population of interest: The population of interest includes all the individuals of…

Q: A group of laboratory mice were massed and the results are as follows: 504 g, 340 g, 450 g, 499 g,…

A: Given query is to find the change in average.

Q: Describe the results depicted in the figure below. What does this tell us about the differences in…

A: Introduction: A clustered bar chart is given, with the horizontal axis labelling the various…

Q: I need to calculate the population size (n) and sum.

A: Given a data set of DBH(X) and total height

Q: By how many times does the sample size have to be increased to decrease the margin of error by a…

A:

Q: Assuming the data displayed in whole number. What is the the largest value?

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Q: Define the term Bin values?

A: The term Bin values is used in histogram. So first of all we have to understand the what histogram…

Q: When you hear thw words “population” and “sample,” what comes first in your mind

A: A population can be defined as a group of individuals belonging to the same species residing in a…

Q: Research that analyzes a portion of an entire population is carried out on a: sample population…

A: Census collects information from each and every member of population. Survey is a restricted method…

Q: it is numerical analysis class's question.

A: Given, xn-xn-1-xn-2=0 ∴ the auxiliary equation can be written as: r2-r-1=0 Solving the above…

Q: What is population size?

A:

Q: You obtain a sample chi-square value of x2= -5.49. On the basis of this value, you know that

A: It is given that the chi-square value of χ2= -5.49.

Q: A shoe print was found at the scene of a hit and run automobile accident. How can a suspect's shoe…

A: Any characteristics that are common to a group are called class characteristics. Types of fiber is…

Q: The table shows the leading causes of death in a certain country in a recent year. The population of…

A: To estimate the number of deaths due to cancer, as expected from the given data

Q: A point estimate of a population consists of how many numbers?

A: Solution: Point Estimation: Point estimate is type of estimation in a statistics. In  the point…

Q: Please answer as substantial as you can. What is the importance of documenting the steps of a…

A: Whether you’re jotting down the results of your own experiments or organizing the work of others,…

Q: Oxygen consumption was measured in twelve individuals while they sat with their eyes closed…

A: X Y D=Y-X D-Dbar (D-Dbar)2 6.1 7.2 5.7 6.4 5.8 6.2 5.4 6.7 5.4 4.2 4.0 4.1…

Q: 4. In statistics, the formula E = t can be used to calculate a margin of error. Solve this formula…

A: This exercise concerns changing the subject of the equation from E (error) to n( the sample size)

Q: What is the essence of study mathematics

A: Explanation The language of abstraction is Mathematics. The essence of mathematics starts with the…

Q: What is the population density of the U.S.? Population: 301,139,947 Area: 5,692,955

A: Population density is given by the ratio of population to Area of land.

Q: Data were collected on how many total hours over the weekend (Saturday and Sunday) community college…

A: