In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-shaped and has a mean of 35 and a standard deviation of 7. Using the empirical rule (as presented in the book), what is the approximate percentage of daily phone calls numbering between 28 and 42?Do not enter the percent symbol.ans = %

In a mid-size company, the distribution of the number of phone calls answered each day by each of the 12 receptionists is bell-shaped and has a mean of 35 and a standard deviation of 7. Using the empirical rule (as presented in the book), what is the approximate percentage of daily phone calls numbering between 28 and 42?Do not enter the percent symbol.ans = %

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

See similar textbooks

Similar questions

See photo for question details.
In normally distributed data, what percent of scores fall within one standard deviation of the mean? Answer Choices: a. 34% b. 95% c 99.7% d. 68%
From this table, compute the ff: Mean: A. 1.40 B. 1.96 C. 1.55 D. 4.12 E. 4.70 Standard deviation A. 1.40 B. 1.96 C. 1.55 D. 4.12 E. 4.70 *The table below shows the number of goals scored by Team Pinoy in the 20 games of the season.
A study involving stress is conducted among the students on a college campus. The stress scores follow a uniform distribution with the lowest stress score equal to one and the highest equal to five. Using a sample of 55 students, find: Find the 80th percentile for the mean of 55 scores. Round to four decimal places.
Q2. The 30% trimmed mean of the following data (120, 15O, 170, 177, 178, 193, 198, 250, * :450, 955} is 186.5 O 182.5 O 188.3 183.5 O 184.5 O
Suppose there is a city where the mean cost per month of a one-bedroom apartment is $1,500, with a standard deviation of $250. Approximately what percentage of one-bedroom apartments in the city cost between $750 and $1,000?
Find Geometric mean from the following distribution : х%3D4, 5, 6, 7, 8,9. f= 2, 3, 4, 3, 2, 1.
Consider the following data of 10 exams scores: 28, 57, 58, 64, 69, 74, 79, 80, 83, 85 1. The the mean, median, and mode 2. find the standard deviation without a graphing calculator. Show all your computations
The ages of the employees at Solar Systems, Inc. is normally distributed with a mean of 32.7 years and a standard deviation of 1.8 years. What percentage of employees at Solar Systems, Inc. are younger than 30 years old? Round your answer to the nearest tenth of a percent.