Find probability that woman considers herself overweight

Assignment Help Basic Statistics

Reference no: EM13117908

A total of 182 college students reported their actual weights and then answered the question, "What is your ideal weight?" The data were collected in the Fall semester of 1999.(Source: William Harkness, Pennsylvania State University) In the table below, we show the averages of the di fferences in actual and reported ideal weights for women and men, separately. Just to make it clear, the average woman considered herself to be about 10.7 lbs over her ideal weight, while the average man considered himself to be about 2.5 lbs over his ideal weight.

Women Men
Mean di fference 10.7 2.5
Standard deviation 11.3 13.8
Number of students 119 63

Use confidence intervals to determine whether or not (a) we can be 95% certain that the average woman considers herself overweight as compared to her ideal weight; and (b) whether or not the same is true of the men.

Reference no: EM13117908

Questions Cloud

Compute the final temperature using the ideal gas law : Compute the final temperature using the ideal gas law and van der Waals equations of state. Assume that Cvm = 3/2 R and the van der waals parameters for Argon are a = 1.355 dm6bar/mol2 and b = 0.0320 dm3/mol.

Explain probability and statistical methods : Probability and Statistical Methods. A manufacturing intraocular lens is in a process of verifying a polishing machine. The polisher will be accepted only if the percentage of polished lenses containing surface defects does not exceed 1.5%

How many milliliters of na2s2o3 solution are needed : How many milliliters of 0.0120 M Na2S2O3 solution are needed to dissolve 0.740 g of AgBr.

Algebra equations and problems : In general, what can you say about the usefulness of these area formulas? What other methods could be used to find the area and surface areas of objects?

Find probability that woman considers herself overweight : Use confidence intervals to determine whether or not (a) we can be 95% certain that the average woman considers herself overweight as compared to her ideal weight.

Why no apparent change in the concetrations : When gaseous nitrogen,hydrogen & ammonia are mixedin a closed vessel at room temperature no apparent change in the concetrations of regardless of the original amount of gases.

How are allele frequencies calculated for a specific gene : define microevolution. How does the field of population genetics help to describe evolutionary change? How are allele frequencies calculated for a specific gene in a population?

Illustrate what is the total magnetic flux through surface : a 1.50 m section of it at one end is bent 90° in the negative z direction. Illustrate what is the total magnetic flux through the surface? Choose directions for the area vectors so that the flux through each surface is positive.

Explain probability you toss two dice : You toss two dice - probability, You toss two dice and compute the "difference," which you will define to be the larger top number minus the smaller top number if the numbers are different, and 0 if the numbers are the same.

User Account

All Pages