EXECUTIVE GROUP IN HARARE IS INTERESTED IN THE VARIATION OF THE OCCUPANCY OF THE ROOMS RENTED WITHIN THEIR HOTELS. ASSUME A RANDOM SAMPLE OF 27 DATES ARE SELECTED AND THE OCCUPANCY RECORDS INDICATE A VARIANCE OF 34.34 ROOMS RENTED. IF THE NUMBER OF ROOMS RENTED IS NORMALLY DISTRIBUTED, FIND THE 95% CONFIDENCE INTERVAL FOR THE POPULATION STANDARD DEVIATION OF THE NUMBER OF ROOMS RENTED

EXECUTIVE GROUP IN HARARE IS INTERESTED IN THE VARIATION OF THE OCCUPANCY OF THE ROOMS RENTED WITHIN THEIR HOTELS. ASSUME A RANDOM SAMPLE OF 27 DATES ARE SELECTED AND THE OCCUPANCY RECORDS INDICATE A VARIANCE OF 34.34 ROOMS RENTED. IF THE NUMBER OF ROOMS RENTED IS NORMALLY DISTRIBUTED, FIND THE 95% CONFIDENCE INTERVAL FOR THE POPULATION STANDARD DEVIATION OF THE NUMBER OF ROOMS RENTED

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 3GP

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Question

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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