Question

In: Statistics and Probability

For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring...

For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring survives)? Studies in Montana, Illinois, Wyoming, Utah, and California give the following percentages of successful nests (Reference: The Wildlife Society Press, Washington, D.C.). x: Percentage success for mallard duck nests 17 86 59 47 29 y: Percentage success for Canada goose nests 24 18 18 51 51 (a) Use a calculator to verify that Σx = 238; Σx2 = 14,216; Σy = 162; and Σy2 = 6,426. Σx Σx2 Σy Σy2 (b) Use the results of part (a) to compute the sample mean, variance, and standard deviation for x, the percent of successful mallard nests. (Round your answers to two decimal places.) x s2 s (c) Use the results of part (a) to compute the sample mean, variance, and standard deviation for y, the percent of successful Canada goose nests. (Round your answers to two decimal places.) y s2 s (d) Use the results of parts (b) and (c) to compute the coefficient of variation for successful mallard nests and Canada goose nests. (Round your answers to one decimal place.) x y CV % % Write a brief explanation of the meaning of these numbers. What do these results say about the nesting success rates for mallards compared to Canada geese? The CV is the ratio of the standard deviation to the mean; the CV for Canada goose nests is higher. The CV is the ratio of the standard deviation to the mean; the CV for Canada goose nests is equal to the CV for mallard nests. The CV is the ratio of the standard deviation to the mean; the CV for mallard nests is higher. The CV is the ratio of the standard deviation to the variance; the CV for Canada goose nests is higher. The CV is the ratio of the standard deviation to the variance; the CV for Canada goose nests is equal to the CV for mallard nests. The CV is the ratio of the standard deviation to the variance; the CV for mallard nests is higher. Would you say one group of data is more or less consistent than the other? Explain. The x data group is more consistent because the standard deviation is smaller. The two groups are equally consistent because the standard deviations are equal. The y data group is more consistent because the standard deviation is smaller.

Solutions

Expert Solution

please leave a comment if you have any doubt. All the steps are shown.

Leave an upvote if you like the solution. All the necessary explanations are given.


Related Solutions

For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring...
For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring survives)? Studies in Montana, Illinois, Wyoming, Utah, and California give the following percentages of successful nests (Reference: The Wildlife Society Press, Washington, D.C.). x: Percentage success for mallard duck nests 86 53 86 44 32 y: Percentage success for Canada goose nests 63 60 57 30 24 (a) Use a calculator to verify that Σx = 301; Σx2 = 20,561; Σy = 234; and...
For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring...
For mallard ducks and Canada geese, what percentage of nests are successful (at least one offspring survives)? Studies in Montana, Illinois, Wyoming, Utah, and California give the following percentages of successful nests (Reference: The Wildlife Society Press, Washington, D.C.). x: Percentage success for mallard duck nests 11 23 44 53 65 y: Percentage success for Canada goose nests 39 15 48 15 39 (a) Use a calculator to verify that Σx = 196; Σx2 = 9,620; Σy = 156; and...
What teamwork lessons can we learn from the behaviour of Canada geese? How might you apply...
What teamwork lessons can we learn from the behaviour of Canada geese? How might you apply these lessons to any teamwork you do at college? When geese fly in formation, we can't help but look up and marvel at their beauty.  Their behaviour also represents successful teamwork patterns that have evolved over time.  The V formation helps each follower goose derive energy from the flow field generated by the goose immediately ahead.  Every bird experiences lower drag and needs less...
what are the main factors that make Canada economically successful? Canada and Russia have similar geography...
what are the main factors that make Canada economically successful? Canada and Russia have similar geography but Canada is at least 5 times richer (per capita) than Russia and expected life at least 10 years longer. Why is that?
Suppose Canada is not successful in renegotiating NAFTA. What are the implications for the Canadian labour...
Suppose Canada is not successful in renegotiating NAFTA. What are the implications for the Canadian labour market? Will the effects be uniformly distributed across the country?
Suppose Canada is not successful in renegotiating NAFTA. What are the implications for the Canadian labour...
Suppose Canada is not successful in renegotiating NAFTA. What are the implications for the Canadian labour market? Will the effects be uniformly distributed across the country? Suggested solution: Show, using diagrams, the impact of changes in production, caused by the hypothetical end of NAFTA on the labour market (hint: changes in demand for Canadian products). Discuss the question on distribution depending on what you think the outcomes will be
What is the significance that primates generally give birth to one offspring at a time and...
What is the significance that primates generally give birth to one offspring at a time and the elongations of gestation and infant dependency? What does this mean about the degree of learning found among prosimians, monkeys and apes.
Adam wants to know what percentage of YU students want to stay in Canada after Graduation....
Adam wants to know what percentage of YU students want to stay in Canada after Graduation. Previous studies suggest 85%. He has taken a sample of 25 students. What is the probability that he finds a percent less than 80%? Assuming that he found 90% would like to stay in Canada, construct the 95% confidence interval for the true population’s proportion.
A set of bonds all have the same maturity. Which one has the least percentage price...
A set of bonds all have the same maturity. Which one has the least percentage price change for given shifts in interest rates: (choose one correct answer) not enough information to determine. zero coupon bonds. pure discount bonds. low coupon bonds. high coupon bonds.
What percentage of hospitals provide at least some charity care? Based on a random sample of...
What percentage of hospitals provide at least some charity care? Based on a random sample of hospital reports from eastern states, the following information is obtained (units in percentage of hospitals providing at least some charity care): 56.8 56.1 53.3 65.6 59.0 64.7 70.1 64.7 53.5 78.2 Assume that the population of x values has an approximately normal distribution. (a) Use a calculator with mean and sample standard deviation keys to find the sample mean percentage x and the sample...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT