Without knowing how common this mutation is, how many squirrels would you need to collect in...
Without knowing how common this mutation is, how many squirrels would you need to collect in order that the standard error of the proportion of squirrels in your sample with leucism is no more than .05?
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Without knowing how common this mutation is, how many squirrels
would you need to collect in...
3. Many companies are interested in knowing the percentage of adults who buy clothing online. How...
3. Many companies are interested in knowing the percentage of adults who buy clothing online. How many adults must be surveyed in order to be 90% confident that the sample percentage is in error by no more than three percentage points if..... ...you use a recent result from the Census Bureau: 80% of adults buy clothing online. ...you assume that we have no prior information suggesting a possible value of the proportion.
You are interested in knowing the size of probation officers caseloads. You collect data and find...
You are interested in knowing the size of probation officers caseloads. You collect data and find the following: X1=21, X2=10, X3=300, X4=57, X5=124, X6=30 How many probation officers are in the sample? What is the variable you are examining? How large is the caseload of the 5th probation officer? Calculate ∑X
Sample Size: non-proportion and proportion data You would like to determine the average diameter of a...
Sample Size: non-proportion and proportion data You would like to determine the average diameter of a cylindrical pin that is manufactured by your company. How many samples would we need to collect if we wish to be 97% confident that the sample mean will be within 0.0005 inch of the true mean given that the population has a standard deviation of 0.0015 inch and is approximately normally distributed.
Using confidence intervals to determine how many samples you’ll need to collect so the average voltage...
Using confidence intervals to determine how many samples you’ll need to collect so the average voltage will be within the desired accuracy. This will take some assumptions and some work. So, here goes: The confidence interval (CI) equation is: Assume that the voltage you are measuring has a true mean (of course we don’t know the actual mean or true value, but that’s OK) of approximately 1 volt. Next, suppose you desire to know your average () vs “true” value...
15. Sheldon Cooper is fluent in Klingon (including knowing how to say “Revenge is a dish...
15. Sheldon Cooper is fluent in Klingon (including knowing how to say “Revenge is a dish best served cold” to Wil Wheaton). It got him to think about how many people are fluent in the language. If Sheldon would like to construct a 95% confidence interval for the proportion of people that are fluent, and would like his interval to be no more than 10 percentage points in width, how large a sample should he take?
You are a politician and would like to know how the percentage of people that support...
You are a politician and would like to know how the percentage of people that support your proposition. You go out and get a random sample of 1000 register voters that are likely to vote in the upcoming election and find out that 300 of them will vote for your proposition. Based upon your observed sample proportion, how many voters would you need to sample if you wanted your margin of error to be 7% with 99% confidence? a) 57...
use? II. How many years you need to ko y years you need to keep your...
use? II. How many years you need to ko y years you need to keep your 2000S in the bank in order to get 100005 at the end, knowing that the annual interest rate is 10% monthly compounded? (2.5+2.5-5 Marks)
How many nucleotides long would a DNA sequence need to be in order for it not...
How many nucleotides long would a DNA sequence need to be in order for it not to be found by chance more than once in a human genome (size is 3.2 x 10^9 base pairs)? Set up the correct calculation below - SHOW YOUR WORK!
Knowing about the many mistakes doctors and health facilities make, how would you prepare yourself or...
Knowing about the many mistakes doctors and health facilities make, how would you prepare yourself or a relative to cope with having to have major surgery? Discuss your ideas in 2-3 paragraphs.
Knowing about the many mistakes doctors and health facilities make, how would you prepare yourself or...
Knowing about the many mistakes doctors and health facilities make, how would you prepare yourself or a relative to cope with having to have major surgery? Discuss your ideas in 2-3 paragraphs.
You are a politician and would like to know how the percentage of people that support your proposition. You go out and get a random sample of 1000 register voters that are likely to vote in the upcoming election and find out that 300 of them will vote for your proposition. Based upon your observed sample proportion, how many voters would you need to sample if you wanted your margin of error to be 7% with 99% confidence? a) 57...
use? II. How many years you need to ko y years you need to keep your 2000S in the bank in order to get 100005 at the end, knowing that the annual interest rate is 10% monthly compounded? (2.5+2.5-5 Marks)
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