The distribution of weekly salaries at a large company is reverse J-shaped with a mean of...
The distribution of weekly salaries at a large company is right-skewed with a mean of $1000 and a standard deviation of $350. a) Determine the sampling distribution of the mean salary for samples of size 60. b) If a sample of weekly salaries of 60 employees is randomly selected, what is the probability that the sample mean salary will be within $50 of the population mean $1000 (the mean weekly salary for all employees)?
Data on salaries in the public school system are published annually by a teachers' association. The mean annual salary of public) classroom teachers is 557.7 thousand. Assume a standard deviation of $8.4 thousand. Complete parts (a) through (e) below a. Determine the sampling distribution of the sample mean for samples of size 64. The mean of the sample mean is Hy = $(Type an integer or a decimal. Do not round.) The standard deviation of the sample mean is =$(Type...
Question 4 (10 points): A distribution of measurements is relatively mound-shaped with mean 45 and standard deviation 15 (a) What proportion of the measurements will fall between 30 and 60? (b) What proportion of the measurements will fall between 15 and 75? (c What proportion of the measurements w fall between 30 and 75? (d) If a measurement is chosen at random from this distribution, what is the probability that it will be greater than 60?
Annual salaries for employees in a large company are approximately normally distributed with a mean of $50,000 and a standard deviation of $20,000. What percentage of company workers make under $40,000?
A recruiting firm report on starting salaries states that starting salaries for finance majors are skewed to the right, with a nationwide mean of $58,993. a. We collect starting salary data from a random sample of 50 recently graduated finance majors from a well- regarded business program at a large state university. Why is it okay to use these data for inference even though the population is skewed? b. The standard deviation of the 50 salaries in our sample was...
The annual salaries of employees in a large company are normally distributed with a mean of $50,000 and a standard deviation of $20,000. What percentage of people earn between $45,000 and $65,000? Round to the second decimal place.
A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the standard deviation. Find the standard deviation of the data summarized in the given frequency distribution. Salary (dollars) Employees $5,001-10,000 16 $10,001-15,000 12 $15,001-20,000 15 $20,001-25,000 11 $25,001-30,000 26
1. A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the mean salary. a. $20,969.30 b. $17,156.70 c. $17,500 d. $19,063.00 Salary ($) Employees 5,001-10,000 10 10,001-15,000 16 15,001-20,000 18 20,001-25,000 11 25,001-30,000 25
QUESTION 5 Find the mean of the data summarized in the given frequency distribution. A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the mean salary. Salary (S) Employees 5,001-10,000 10,001-15,000 15,001-20,000 20,001-25,000 25,001-30,000 20 20 O$18,375.50 $16,53795 $20,213.05 $17-500 28
A company had 80 employees whose salaries are summarized in the frequency distribution below. Find the standard deviation. Salary (dollars) |Employees 5,001-10,000 10,001-15,000 15,001-20,000 20,001-25,000 25,001-30,000 19 14 12 16 19 OA. $8422.8 O B. $7588.1 O C. $7967.5 O D. $8195.1