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The numbers of faculty at 20 randomly selected state-controlled colleges and universities with enrollment under 12,000 students are shown below. Use these data to estimate the mean number of faculty at all state-controlled colleges and universities with enroliment under 12,000 with 94% confidence. Assume o=165.1. Assume the population is normally distributed. Round intermediate calculations steps to at least two decimal places. Round your final answers to one decimal place. 408 515 280 289 180 431 176 318 836 203 374 412 134 539 471 211 384 396 224 337 Send data to Excel Length of Growing Seasons The growing seasons for a random sample of 37 U.S. cities were recorded, yielding a sample mean of 195.9 days and the population standard deviation of 54.9 days. Estimate the true population mean of the growing season with 99% confidence. Round your answers to at least one decimal place. Hospital Noise Levels Noise levels at various area urban hospitals were measured in decibels. The mean noise level in 168 ward areas was 56.6 decibels, and the population standard deviation is 4.4. Find the 90% confidence interval of the true mean. Round your answers to at least one decimal place.

The numbers of faculty at 20 randomly selected state-controlled colleges and universities with enrollment under 12,000 students are shown below. Use these data to estimate the mean number of faculty at all state-controlled colleges and universities with enroliment under 12,000 with 94% confidence. Assume o=165.1. Assume the population is normally distributed. Round intermediate calculations steps to at least two decimal places. Round your final answers to one decimal place. 408 515 280 289 180 431 176 318 836 203 374 412 134 539 471 211 384 396 224 337 Send data to Excel Length of Growing Seasons The growing seasons for a random sample of 37 U.S. cities were recorded, yielding a sample mean of 195.9 days and the population standard deviation of 54.9 days. Estimate the true population mean of the growing season with 99% confidence. Round your answers to at least one decimal place. Hospital Noise Levels Noise levels at various area urban hospitals were measured in decibels. The mean noise level in 168 ward areas was 56.6 decibels, and the population standard deviation is 4.4. Find the 90% confidence interval of the true mean. Round your answers to at least one decimal place.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The numbers of faculty at 20 randomly selected state-controlled colleges and universities with enrollment under 12,000 students are shown below. Use these data to estimate the mean number of faculty at all state-controlled colleges and universities with enrollment under 12,000 with 94% confidence. Assume o= 165.1. Assume the population is normally distributed. Round intermediate calculations steps to at least two decimal places. Round your final answers to one decimal place. 408 515 280 289 180 431 176 318 836 203 374 412 134 539 471 211 384 396 224 337 Send data to Excel Length of Growing Seasons The growing seasons for a random sample of 37 U.S. cities were recorded, yielding a sample mean of 195.9 days and the population standard deviation of 54.9 days. Estimate the true population mean of the growing season with 99% confidence. Round your answers to at least one decimal place. Hospital Noise Levels Noise levels at various area urban hospitals were measured in decibels. The mean noise level in 168 ward areas was 56.6 decibels, and the population standard deviation is 4.4. Find the 90% confidence interval of the true mean. Round your answers to at least one decimal place.
Transcribed Image Text:The numbers of faculty at 20 randomly selected state-controlled colleges and universities with enrollment under 12,000 students are shown below. Use these data to estimate the mean number of faculty at all state-controlled colleges and universities with enrollment under 12,000 with 94% confidence. Assume o= 165.1. Assume the population is normally distributed. Round intermediate calculations steps to at least two decimal places. Round your final answers to one decimal place. 408 515 280 289 180 431 176 318 836 203 374 412 134 539 471 211 384 396 224 337 Send data to Excel Length of Growing Seasons The growing seasons for a random sample of 37 U.S. cities were recorded, yielding a sample mean of 195.9 days and the population standard deviation of 54.9 days. Estimate the true population mean of the growing season with 99% confidence. Round your answers to at least one decimal place. Hospital Noise Levels Noise levels at various area urban hospitals were measured in decibels. The mean noise level in 168 ward areas was 56.6 decibels, and the population standard deviation is 4.4. Find the 90% confidence interval of the true mean. Round your answers to at least one decimal place.
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