The standard deviation of the sample values in Exercise 1 is 1.3 hours. What is the variance

Question:

The standard deviation of the sample values in Exercise 1 is 1.3 hours. What is the variance (including units)?

Exercise 1

As part of the National Health and Nutrition Examination Survey, subjects were asked how long they slept the preceding night, and the following times (hours) were reported:

8, 7, 5, 7, 4, 7, 6, 7, 8, 8, 8, 6.

Find the mean.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Elementary Statistics Using Excel

ISBN: 9780134506623

6th Edition

Authors: Mario F. Triola

See More Books

Question Posted: Sep 04, 2019 08:22 AM

See More Questions

The following table shows the number of active military personnel in 2009, by region (including the District of Columbia). a. Calculate the mean and standard deviation for the population. b. Now take...
The value of the correlation coefficient can also be found by using the formula r = bsx / sy Where sx is the standard deviation of the x values and sy is the standard deviation of the y values....
If we consider the values 1, 2, 3, . . . , n to be a population, the standard deviation can be calculated by the formula. This formula is equivalent to Formula 2-4 modified for division by n instead...
Danis Inc is an American firm. The company will receive 626,000 British pounds (GBP) from one of its trading partners in 30 days. The company has obtained an analyst report for possible foreign...
Consider the situation of owning rental properties that local university students rent from you on an academic year basis. Develop a set of costs that you could classify as recurring and others that...
Figure 1.15 shows fifty years of fertilizer use in the US, India, and the former Soviet Union. (a) Estimate fertilizer use in 1970 in the US, India, and the former Soviet Union. (b) Write a sentence...
Body mass and metabolic rate. The body mass data in Table 14.1 are given in pounds. There are 2.2 pounds in a kilogram. If we changed the data from pounds to kilograms, how would the mean body mass...
Cabo Company has $1,000,000 in assets and $1,000,000 in stockholders' equity, with 40,000 shares outstanding the entire year. It has a return on assets of 10%. During 2016, it had net income of...
The difference between the M&M theory Case I (no taxes no bankruptcy costs) and M&M Case II (taxes no bankruptcy costs) is The relationship between cost of equity and leverage linear in Case I and...
Imagine you are an HR executive at P&G. Given the company's strategic orientation toward purpose and values, what would you do to help align a new performance management system with the strategic...
Refer to the boxplots shown below that are drawn on the same scale. One boxplot represents weights of men, and the other boxplot represents weights of women. Which boxplot represents weights ofwomen?...
If the sleep time of 0 hours is included with the sample data given in Exercise 1, is it an outlier? Why or why not? Exercise 1 As part of the National Health and Nutrition Examination Survey,...
What contributions to scientific management were made by people other than Taylor?
Machine cost = $15,000; life = 8 years; salvage value = $3,000. What minimum cash return would an investor demand annually from the operation of this machine if he desires interest annually at the...
Write a program that prompts for the student's name, the number of exams, the exam score of each exam, and display the letter grade for the student. Read the entire problem description before coding....
Considering only the vertical stabilizer and rudder, explain the aerodynamic forces and moments that are created. You must include at least applicable airfoil terminology, description of force...
part. Review A bicycle wheel is rotating at 47 rpm when the cyclist begins to pedal harder, giving the wheel a constant angular acceleration of 0.44 rad/s. Part B How many revolutions does the wheel...
Suppose the number of students who register for a certain class each semester can be modeled by a Poisson distribution with average 10. Suppose further that each student passes the class with...
For the following exercises, evaluate the natural logarithmic expression without using a calculator. ln (e0.225) 3
One Way Cellular accountants have assembled the following data for the year ended September 30, 2014: Prepare the operating activities section using the indirect method for One Way Cellulars...
The Organization for Economic Cooperation and Development provided the following mean weekly instruction times (hours) for elementary and high school students in various countries: 22.2 (United...
In Ohios Pick 4 game, you pay $1 to select a sequence of four digits, such as 7709. If you buy only one ticket and win, your prize is $5000 and your net gain is $4999. a. If you buy one ticket, what...
In the last U.S. Open tennis tournament, there were 611 challenges made by singles players, and 172 of them resulted in referee calls that were overturned. The accompanying table lists the results by...
A proposed $2.5 M investment in new equipment at a 100 MG/y M&Ms factory will save the plant $800,000/y in energy costs. Assuming an annual interest rate of 5%/y (compounded annually), and an...
Brief Exercise 10-7 Coronado Company obtained land by issuing 2,250 shares of its $14 par value common stock. The land was recently appraised at $103,240. The common stock is actively traded at $44...
The following schedule reconciles Cele Co.'s pretax GAAP income Pretax GAAP income Nondeductible expense for fines Tax deductible depreciation in excess of GAAP depreciation expens Taxable rental...

The standard deviation of the sample values in Exercise 1 is 1.3 hours. What is the variance

Question:

Step by Step Answer:

The var...View the full answer

Elementary Statistics Using Excel

Students also viewed these Mathematics questions