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4) A small company has 130 people working in full-time, and a summary of leave in...
4) A small company has 130 people working in full-time, and a summary of leave in...
4) A small company has 130 people working in full-time, and a summary of leave in a certain month was found as follows: Number of days on lcave 01 Number of staffs 5 6 10 7 47 33 0 18 15 i. Find the sample standard deviation of number of days on leave by a staff. ji. Find the sample median of the number of days on leave by a staff. k. What is the first quartile of the number...
The number of vacation days taken by the employees of a company is normally distributed with...
The number of vacation days taken by the employees of a company is normally distributed with a mean of 14 days and a standard deviation of 3 days. Is this a case of sample standard deviation or population standard deviation? What are some differences between sample standard deviation and population standard deviation? For the next employee, what is the probability that the number of days of vacation taken is less than 10 days? What is the probability that the number...
A company decides to investigate the amount of sick leave taken by its employees. A sample...
A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year 0140072 Use this information to answer parts a through c. a. Find and interpret the range. The range is 7 days. Choose the correct interpretation of the range below A. The number of days separating the fewest and most sick days taken is equal to the range....
a. Find the sample standard deviation of the number of children. b. What proportion of the...
a. Find the sample standard deviation of the number of
children.
b. What proportion of the women had more than the mean number of
children? Round the answer to two decimal places.
c. For what proportion of the women was the number of children
more than one standard deviation greater than the mean? Round the
answer to two decimal places.
d. For what proportion of the women was the number of children
within one standard deviation of the mean? Round...
Math 130- Project 1 1. Below is the stem plot for the ages of students in...
Math 130- Project 1 1. Below is the stem plot for the ages of students in a certain class, Using your Ti calculator, find the mean and the standard deviation 2 5 5 2 1 1 0 2 1 4 82 1 o 0 71 1 1 0 3 1 8 8 99 9 8 7 9 999 8 8799 8 2. The following are the scores of Exam 1: 83, 92, 65, 73, 67, 88, 52, 77, 67.79, 77,...
Assume that the sick leave, X, taken by the typical worker per year has mean µ...
Assume that the sick leave, X, taken by the typical worker per year has mean µ = 10 and standard deviation σ = 2 measured in days. (A) Find the approximate probability that the number of sick days per year for a randomly selected employee from the firm exceeds 11? (B) Find the 90th percentile of the number of sick days per year.
4 0.0256 Find the indicated probability. 5) A multiple choice test has 8 questions each of...
4 0.0256 Find the indicated probability. 5) A multiple choice test has 8 questions each of which has 4 possible answers, only one of which is correct. If Judy, who forgot to study for the test, guesses on all questions, what is the probability that she will answer exactly 3 questions correctly? Use the Poisson Distribution to find the indicated probability. 6) The town of Fastville has been experiencing a mean of 59.4 car accidents per year. Find the probability...
A normal population has mean = 9 and standard deviation -5. (a) What proportion of the...
A normal population has mean = 9 and standard deviation -5. (a) What proportion of the population is less than 19? (b) What is the probability that a randomly chosen value will be greater than 4? Round the answers to four decimal places. Part 1 of 2 The proportion of the population less than 19 is Part 2 of 2 The probability that a randomly chosen value will be greater than 4 is : A normal population has mean =...
Suppose that the weight of Florida navel oranges is normally distributed with mean µ = 8...
Suppose that the weight of Florida navel oranges is normally distributed with mean µ = 8 ounces, and standard deviation σ = 1.5 ounces. (a) (1 point) State the model in notation form. (b) (2 points) What proportion of oranges weigh more than 11.5 ounces? (c) (2 points) What proportion of oranges weigh less than 8.7 ounces? (d) (2 points) What proportion of oranges weigh between 6.2 and 7 ounces? Page 3 (e) (5 points) What are the median, mode,...
Use the Poisson Distribution to find the indicated probability. 6) The town of Fastville has been...
Use the Poisson Distribution to find the indicated probability. 6) The town of Fastville has been experiencing a mean of 59.4 car accidents per year. Find the probability that on a given day the number of car accidents in Fastville is 3. (Assume 365 days in a year.) rovide an appropriate response. 7) Find the area under the standard normal curve to the right of z -1. 8) For the standard normal curve, find the z-score that corresponds to the...
4) A small company has 130 people working in full-time, and a summary of leave in a certain month was found as follows: Number of days on lcave 01 Number of staffs 5 6 10 7 47 33 0 18 15 i. Find the sample standard deviation of number of days on leave by a staff. ji. Find the sample median of the number of days on leave by a staff. k. What is the first quartile of the number...
A company decides to investigate the amount of sick leave taken by its employees. A sample of seven employees yields the following numbers of days of sick leave taken in the past year 0140072 Use this information to answer parts a through c. a. Find and interpret the range. The range is 7 days. Choose the correct interpretation of the range below A. The number of days separating the fewest and most sick days taken is equal to the range....
a. Find the sample standard deviation of the number of
children.
b. What proportion of the women had more than the mean number of
children? Round the answer to two decimal places.
c. For what proportion of the women was the number of children
more than one standard deviation greater than the mean? Round the
answer to two decimal places.
d. For what proportion of the women was the number of children
within one standard deviation of the mean? Round...
Math 130- Project 1 1. Below is the stem plot for the ages of students in a certain class, Using your Ti calculator, find the mean and the standard deviation 2 5 5 2 1 1 0 2 1 4 82 1 o 0 71 1 1 0 3 1 8 8 99 9 8 7 9 999 8 8799 8 2. The following are the scores of Exam 1: 83, 92, 65, 73, 67, 88, 52, 77, 67.79, 77,...
4 0.0256 Find the indicated probability. 5) A multiple choice test has 8 questions each of which has 4 possible answers, only one of which is correct. If Judy, who forgot to study for the test, guesses on all questions, what is the probability that she will answer exactly 3 questions correctly? Use the Poisson Distribution to find the indicated probability. 6) The town of Fastville has been experiencing a mean of 59.4 car accidents per year. Find the probability...
A normal population has mean = 9 and standard deviation -5. (a) What proportion of the population is less than 19? (b) What is the probability that a randomly chosen value will be greater than 4? Round the answers to four decimal places. Part 1 of 2 The proportion of the population less than 19 is Part 2 of 2 The probability that a randomly chosen value will be greater than 4 is : A normal population has mean =...
Use the Poisson Distribution to find the indicated probability. 6) The town of Fastville has been experiencing a mean of 59.4 car accidents per year. Find the probability that on a given day the number of car accidents in Fastville is 3. (Assume 365 days in a year.) rovide an appropriate response. 7) Find the area under the standard normal curve to the right of z -1. 8) For the standard normal curve, find the z-score that corresponds to the...
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