An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 2 of 2 : Suppose a sample of 564 tankers is drawn. Of these ships, 446 did not have spills. Using the data, construct the 90% confidence interval for the population proportion of oil tankers that have spills each month. Round your answers to three decimal places.
Homework Answers
from above:
90% confidence interval for the population proportion of oil tankers that have spills each month =(0.181 , 0.237)
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An environmentalist wants to find out the fraction of oil
tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 2 of 2: Suppose a sample of 563 tankers is drawn. Of these ships, 445 did not have spills. Using the data, construct the 98% confidence interval for the population proportion of oil tankers that have spills each month. Round your answers to three decimal places.
An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 2 of 2 : Suppose a sample of 273 tankers is drawn. Of these ships, 194 did not have spills. Using the data, construct the 85% confidence interval for the population proportion of oil tankers that have spills each month. Round your answers to three decimal places.
An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 1 of 2: Suppose a sample of 733 tankers is drawn. Of these ships, 528 did not have spills. Using the data, estimate the proportion of oil tankers that had spills. Enter your answer as a fraction or a decimal number rounded to three decimal places. Answer(How to Enter) 2 Points # Tables Keypad An environmentalist wants to find out the fraction of...
An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 2 of 2: Suppose a sample of 211 tankers is drawn. Of these ships, 146 did not have spills. Using the data, construct the 80% confidence interval for the population proportion of oil tankers that have spills each month. Round your answers to three decimal places Tables Answer How to enter your answer Keypad Previous step answe Lower endpoint: Upper endpoint:
An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 1 of 2 : Suppose a sample of 355 tankers is drawn. Of these ships, 299 did not have spills. Using the data, estimate the proportion of oil tankers that had spills. Enter your answer as a fraction or a decimal number rounded to three decimal places.
An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 1 of 2: Suppose a sample of 356356 tankers is drawn. Of these ships, 246246 did not have spills. Using the data, estimate the proportion of oil tankers that had spills. Enter your answer as a fraction or a decimal number rounded to three decimal places.
An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 1 of 2 : Suppose a sample of 712 tankers is drawn. Of these ships, 570 did not have spills. Using the data, estimate the proportion of oil tankers that had spills. Enter your answer as a fraction or a decimal number rounded to three decimal places.
an environmentalist wants to find out the fraction 438 tankers step An environmentalist wants to find...
an environmentalist wants to find out the fraction 438 tankers
step
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 2 of 2: Suppose a sample of 438 tankers is drawn. Of these ships, 311 did not have spills. Using the data, construct the 95% confidence interval for the population proportion of oil tankers that have spills each month. Round your answers to three decimal places. Tables Keypa Answer How to enter...
An environmentalist wants to find out the fraction of oil tankers that have spills each month....
An environmentalist wants to find out the fraction of oil tankers that have spills each month. In an earlier study, the population proportion was estimated to be 0.25. How large a sample would be required in order to estimate the fraction of oil tankers that have spills each month at the 85% confidence level with an error of at most 0.05? Round your answer up to the next integer.
A climate change scientist is interested in finding out the fraction of oil tankers that have...
A climate change scientist is interested in finding out the fraction of oil tankers that have spills each month. Suppose a sample two hundred fifty tankers is drawn. Of these ships, did not have spills. Using the data, construct the confidence interval for the population proportion of oil tankers that have spills each month.
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 1 of 2: Suppose a sample of 733 tankers is drawn. Of these ships, 528 did not have spills. Using the data, estimate the proportion of oil tankers that had spills. Enter your answer as a fraction or a decimal number rounded to three decimal places. Answer(How to Enter) 2 Points # Tables Keypad An environmentalist wants to find out the fraction of...
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 2 of 2: Suppose a sample of 211 tankers is drawn. Of these ships, 146 did not have spills. Using the data, construct the 80% confidence interval for the population proportion of oil tankers that have spills each month. Round your answers to three decimal places Tables Answer How to enter your answer Keypad Previous step answe Lower endpoint: Upper endpoint:
an environmentalist wants to find out the fraction 438 tankers
step
An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 2 of 2: Suppose a sample of 438 tankers is drawn. Of these ships, 311 did not have spills. Using the data, construct the 95% confidence interval for the population proportion of oil tankers that have spills each month. Round your answers to three decimal places. Tables Keypa Answer How to enter...
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