Question

In: Statistics and Probability

Question 5 Part A In order to estimate the mean length of a great white shark....

Question 5

Part A In order to estimate the mean length of a great white shark. A researcher is only able to gather a sample of three great white sharks, but knows that the lengths of great white sharks is normally distributed. The three sharks have lengths of 24, 20 and 22 feet. Find the 99% confidence interval for the mean length of a great white shark. Round to two decimal places.

Group of answer choices

A) (17.03, 26.97)

B) (10.54, 33.46)

C) (19.74, 24.26)

D) (9.74, 34.99)

E) (20.01, 23.90)

Part B

Interpret your confidence interval from the previous problem about great white sharks in a sentence.

Solutions

Expert Solution


Related Solutions

One of the most feared predators in the ocean is the great white shark. Although it...
One of the most feared predators in the ocean is the great white shark. Although it is known that the great white shark grows to a mean length of 21 feet, a marine biologist believes that great white sharks off the Bermuda coast grow much longer because of unusual feeding habits. To test this claim, researchers plan to capture a number of full-grown great white sharks off the Bermuda coast, measure them, and set them free. However, because capturing sharks...
You bought one of Great White Shark Repellant Co.’s 8 percent coupon bonds one year ago...
You bought one of Great White Shark Repellant Co.’s 8 percent coupon bonds one year ago for $800. These bonds make annual payments and mature 12 years from now. Suppose you decide to sell your bonds today, when the required return on the bonds is 12 percent. If the inflation rate was 3.2 percent over the past year, what was your total real return on investment? Multiple Choice .90% 7.36% -8.89% .80% .84%
You bought one of Great White Shark Repellant Co.’s 10 percent coupon bonds one year ago...
You bought one of Great White Shark Repellant Co.’s 10 percent coupon bonds one year ago for $810. These bonds make annual payments and mature 15 years from now. Suppose you decide to sell your bonds today, when the required return on the bonds is 14 percent. If the inflation rate was 3.3 percent over the past year, what was your total real return on investment? Multiple Choice 2.21% 2.10% -9.85% 2.20% 8.95%
QUESTION PART A: Assume that a sample is used to estimate a population mean μμ. Find...
QUESTION PART A: Assume that a sample is used to estimate a population mean μμ. Find the 80% confidence interval for a sample of size 882 with a mean of 51.3 and a standard deviation of 17.1. Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). _____< μ <______ Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3...
It is known that white sharks grow to a mean length of 18.9 feet. A marine...
It is known that white sharks grow to a mean length of 18.9 feet. A marine biologist claims that the great white sharks off the coast of Bermuda grow much longer. Thirteen great white sharks are captured, measured, and released off of Bermuda’s coast. The mean length is 19.66 feet and the standard deviation is 2.6 feet. Does the data provide sufficient evidence at the .05 level of significance to support the biologist’s claim?
A hospital conducted a survey to estimate the mean length of stay at the hospital. a...
A hospital conducted a survey to estimate the mean length of stay at the hospital. a simple random sample of 100 patients resulted in a sample mean of 4.5 days. the population standard deviation is 4 days. a) Calculate a 90% confidence interval. b)Interpret the results of your confidence interval.
QUESTION PART A: You intend to estimate a population mean μμ from the following sample. 82.1...
QUESTION PART A: You intend to estimate a population mean μμ from the following sample. 82.1 64 80 70.3 62.5 70.1 88.2 72.9 76.7 70.1 73.8 55.9 81 59.1 59.6 64 48.1 43.8 51 79 62.3 67.1 76 47.5 81.3 68.8 79.5 64.6 38.9 88.7 57.9 61.4 78.9 72.4 76.7 79.7 70 65.3 79.1 74.1 Find the 99.9% confidence interval. Enter your answer as a tri-linear inequality accurate to two decimal place (because the sample data are reported accurate to...
A research council wants to estimate the mean length of time (in minutes) that the average...
A research council wants to estimate the mean length of time (in minutes) that the average U.S. adult spends watching television using digital video recorders (DVR’s) each day. To determine the estimate, the research council takes random samples of 35 U.S. adults and obtains the following times in minutes. 24 27 26 29 33 21 18 24 23 34 17 15 19 23 25 29 36 19 18 22 16 45 32 12 24 35 14 40 30 19 14...
A research council wants to estimate the mean length of time (in minutes) that the average...
A research council wants to estimate the mean length of time (in minutes) that the average U.S. adult spends watching television using digital video recorders (DVR’s) each day. To determine the estimate, the research council takes random samples of 35 U.S. adults and obtains the following times in minutes. 24 27 26 29 33 21 18 24 23 34 17 15 19 23 25 29 36 19 18 22 16 45 32 12 24 35 14 40 30 19 14...
a hospital administrator wants to estimate the mean length of stay for all inpatients in the...
a hospital administrator wants to estimate the mean length of stay for all inpatients in the hospital. Based on a random sample of 676 patients from the previous year, she finds that the sample mean is 5.3 days with a standard deviation of 1.2 days. Construct and interpret a 95% and a 99% confidence interval for the mean.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT