Standard deviation and standard error for each group

Assignment Help Basic Statistics
Reference no: EM1320039

A researcher is interested in whether social assertiveness might be influenced by training procedures. Two groups of college sophomores are randomly selected. Group A subjects are assigned to the "training sessions" and Group B subjects do not receive the training. Both groups are given a "Social Assertiveness" test (higher scores indicate greater assertiveness). The results are the following:

Group A: 14, 11, 10, 10, 8, 6, 5, 9, 7, 9, 10, 9, 7, 8, 9, 10, 11

Group B: 12, 10, 10, 8, 7, 6, 4, 2, 5, 4, 6, 3, 8, 6, 5, 4

Calculate the mean, standard deviation, median, and standard error for each group.

Reference no: EM1320039

Questions Cloud

Value of percentile-given mean and third quartile : Scores on a test have a mean of 73 and Q3 is 81. The scores have a distribution that is approximately normal. Find P90.
What is the distance between your eye and the image : A butterfly at eye level is 26 cm in front of a plane mirror. You are behind the butterfly, 48 cm from the mirror. What is the distance between your eye and the image of butterfly in the mirror.
What is the volume discharged per unit time : An airplane maintains a speed of 567 km/h relative to the air it is flying through as it makes a trip to a city 745 km away to the north.
Calculate the breakeven point : Calculate the breakeven point.
Standard deviation and standard error for each group : Compute the mean, standard deviation, median, and standard error for each group.
What factor would its relativistic momentum increase : In a head-on collision, the car stops in 0.23 {rm s} from a speed of 17 {rm m}/{rm s}. The driver has a mass of 77 {rm kg}, and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fract..
Critical success factors and swot : Contrast the critical success factors (CSFs) and SWOT (i.e., strengths, weaknesses, opportunities, and threats) approaches for assessing opportunities as part of a strategic IS planning process.
Standard deviation and expected value : Calculate the MEAN and STANDARD DEVIATION for the distribution below:
How far is crate from the aircraft when it hits the ground : Vector A has a magnitude of 9.10 units and makes an angle of 54.0° with the positive x-axis. Vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods find the following.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determine if the improvement is of practical significance

determine if the improvement is of practical significance one should. Crop researchers plant 100 plots with a new variety of corn. The average yield for these plots is x' = 130 bushels per acre

  Critical values associated with testing your hypothesis

Taking α to be 0.05, what is/are the critical values associated with testing your hypothesis?

  Representative random sample

Is it reasonable to conclude that this set of n = 16 people is not a representative random sample of registered voters?

  Normal distribution which gives standard deviation also mean

Findout the value of X using normal distribution which gives standard deviation also mean. A math teacher gives two different tests to measure students' aptitude for math.

  Computing percentage of children who watch television

Based on information, compute the following: Percentage (or portion) of children who watch television less than 6.5 hours a week.

  Independent two sample t-test

Why is it misleading to draw the conclusion from the test above that long-time exposure to cadmium reduces the vital capacity?

  Finding the probability based on independent events

Which are likely to be independent events? For those you think are not, suggest reasons why.

  Decision theory-minimax and maximax principle

Decision making under risk is the same as decision making under uncertainty because in both the probabilities are unknown.

  Testing for one population mean

Identify the sampling distribution to be used: the standard normal distribution or the Student's t distribution. Find the critical value(s).

  Define confidence interval estimation

Calculate a 95% confidence interval for the population mean, based on the sample 10, 12, 13, 14, 15, 16, and 49.  Change the number from 49 to 16 and recalculate the confidence interval.  Using results, explain the effect of an outlier or extreme ..

  Comparison of two variables using standard deviation

What is the standard deviation of expected returns for Stock X? For Stock Y?

  Assessing probability on normal distribution

If the company does not want to replace more than 5% of the televisions?

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