T test for comparing iq of males and females

Assignment Help Basic Statistics
Reference no: EM13107170

Calculate and compare the means for IQ as a dependent variable and gender as your independent variable. Do you think males and females differed in their IQ scores? Why?

Male

mean= 99.33

N= 55

Std Dev= 13.192

Range= 62

Kurtosis=.224

Skewness=.451

Female

Mean=101.82

N=33

Std Dev=12.677

Range=45

Kurtosis=-.731

Skewness=.354

Total

mean=100.26

N=88

Std. Dev=12.985

Range=62

Kurtosis=-.163

Skewness=.394

Reference no: EM13107170

Questions Cloud

Hypothesis test for population mean-t-test : A rental agent claims that the mean monthly rent, , for apartments on the east side of town is less than $675 . A random sample of 18 monthly rents for apartments on the east side has a mean of $661, with a standard deviation of $24.
At what point along the x-axis : A 5.0 nC point charge sits at x = 0. At the same time, a 4300 N/C uniform electric field (created by distant source charges) points in the positive x-direction. A. At what point along the x-axis, if any, would a proton experience no net force? B. ..
Difference between t-tests and z-tests : In drawing an inference using a single mean in hypothesis testing, you often have a choice between doing a z-test or a t-test. Many researchers will always choose to do the t-test even under circumstances where the z-test would work as well.
Write a paper on personal model of helping : Write down 2,100- to 2,800-page paper on personal model of helping. Include learning from this course and explain how and why you have, at this point in development, formed your viewpoints.
T test for comparing iq of males and females : Calculate and compare the means for IQ as a dependent variable and gender as your independent variable. Do you think males and females differed in their IQ scores? Why?
What is the e field from the center of the spheres : Suppose there are two concentric thin walled conducting spheres, the inner one of radius 10 cm and the outer one of radius 12 cm. If the inner one has a charge of 2.2 C and the outer one has -2.2 C, what is the E field at a point 11 cm from the ce..
Determine best time in research process : When is the best time in the research process to start searching for participants? You are in charge of a project that is investigating the effects of gender differences on the reading scores of first, third, and fifth grades in three different schoo..
Detailed explanation of t-test : The results of a published research study indicated that babies fed on breast milk gained an average of 11 ounces per week; babies fed a powdered instant baby formula gained an average of 2 ounces per week.
At what speed did his pool shot hit the ground : The winner of the competition wants to know if he has broken the world record for the break shot of 32mph (about 14.3m/s). The ball landed a distance 5.15m away from the table edge, calculate his break shot speed. At what speed did his pool shot h..

Reviews

Write a Review

Basic Statistics Questions & Answers

  Validating the assumption of f-test

To avoid the problem of not having access to Tables of  F  distribution with values given for the lower tail, the numerator of the test statistic should be the one with:

  Hypothesis test to find processes which reduced wait time

By using.02 level of significance, carry out a 5-step hypothesis testing procedure to find out if new processes considerably reduced the wait time.

  Grade performance and extracurricular participation

To determine if there is a relationship between grade performance and extracurricular participation, North Carolina state conducted a study of 112 students, recording the number of students in each of three extra-curricular categories, and each of..

  Binomial probabilities and gender of children

Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children.

  To obtain the probability for u and o slash

A population has mean 325 and variance 144. Suppose the distribution of sample means is generated by random samples of size 36.

  Illustrate the maximum number of reservations

Illustrate the maximum number of reservations that it could accept for a flight with a capacity of 160, if it needs the probability of accommodating all reservation holders to be at least 95%.

  Guessing the value of p

A production line manager, J, is trying to design a manufacturing line, using the machines that her company already has. Based on the historical records

  Statistical description of random telephone numbers

Using the telephone numbers listed in your local directory as your population, randomly obtain 20 samples of size 3. From each telephone number identified as a source, take the fourth, fifth, and sixth digits.

  Finding mean life length of the batteries

At.05 level of significance, is there evidence to propose that mean life length of the batteries manufactured by this manufacturer is more than 400 hours?

  Tree diagram from written description

A study showed that 60% of The Wall Street Journal subcribers watch CNBC every day. Of these, 70% watch it outside the home. Only 20% of those who don't watch CNBC every day watch it outside the home.

  Normal distribution with mean meter and standard deviation

The height of a tree will be measured using a clinometer. For this device, the measurement error has a normal distribution with mean meter and standard deviation . If the tree is exactly 35 meters tall, what is the probability that the clinometer ..

  Determining confidence interval evaluate for average number

Determine 95% confidence interval evaluate for average number of years served by all Supreme Court justices?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd