State the null and alternative hypotheses for testing

Assignment Help Basic Statistics
Reference no: EM13609609

Students enrolled in an introductory statistics course at a university were asked to take a survey that indicated whether the student's learning style was more visual or verbal. Each student received a numerical score ranging from -11 to +11. Negative scores indicated a visual learner, and positive scores indicated a verbal learner. The closer the score was to -11 or +11, the stronger the student's inclination toward that learning style. A score of 0 would indicate neutrality between visual or verbal learning. For the 39 students who took the survey, the mean score was -2.744, and the standard deviation was 4.988.

1. State the null and alternative hypotheses for testing whether the mean score (among all students at this university) differs from 0.

2. Calculate the value of the t-test statistic for the hypotheses stated in question 1.

3. Determine the p-value of the test as accurately as possible.

4. Summarize the conclusion that you would draw from this test.

5. Comment on whether the technical conditions of this t-test are satisfied.

Reference no: EM13609609

Questions Cloud

The joyner corporation originally budgeted for 360000 of : the joyner corporation originally budgeted for 360000 of fixed overhead. production was budgeted to be 12000 units. the
Assuming the heat transfer to be at steady state what : a circular sheet metal duct carries refrigerated air to a cold storage room for apples. the duct itself is 200 mm in
Jackies is a large locally-owned general retail business : jackies is a large locally-owned general retail business operating out of a single location. a condensed version of
Fom the following data retained earnings december 31 2011 : from the following data retained earnings december 31 2011 490400 net decrease in total assets during 2011 74800 net
State the null and alternative hypotheses for testing : students enrolled in an introductory statistics course at a university were asked to take a survey that indicated
A place a charge of -860 microc at point p and find the : a place a charge of -8.60 microc at point p and find the magnitude and direction of the electric field at the location
Chambers inc uses flexible budgets at normal capacity of : chambers inc. uses flexible budgets. at normal capacity of 16000 units budgeted manufacturing overhead is 64000
Consider air parcel moving upwards a what will be the air : consider air parcel moving upwards. a what will be the air parcels temperature be at 2 km altitude if the surface
On january 1 2010 magilla inc granted stock options to : on january 1 2010 magilla inc. granted stock options to officers and key employees for the purchase of 20000 shares of

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability of speeding cars

It has been reported that 3% of all cars on the highway are traveling at speeds in excess of 70 mph. If the speeds of four random automobiles are measured via radar, what is the probability that at least one car is going over 70 mph?

  Determine maximum and minimum dollar amount

Determine the maximum and minimum dollar amount spent per week for middle 50% of one-person households. Suppose that standard deviation is$5 and variable is normally distributed.

  A garage door opener has six toggle switches each with

a garage door opener has six toggle switches each with three settings up center and down.a in how many ways can the

  Randomly chosen people from specific areas

The sample was collected by interviewers going to people's homes in randomly chosen areas in each of the 9 countries. The population represented by this sample was:

  Appropriate hypothesis test using alpha

A sales manager wants to know if the sales productivity of her east region is greater than the sales productivity of her west region

  Describe a five-step hypothesis test of multiple means

Describe a 5-step hypothesis test of multiple means (using the one-factor or the two-factor ANOVA test process) for a particular claim related to your work or life environment.

  Gve the probability distribution of y x2 and compute ey

the probability distribution of a discrete random variable x is given bypx -1 15 px 0 25 px 1 25 .a. compute

  Why monthly sales have changed statistically

During the last year sales averaged $22,000 per month. Does this indicate that monthly sales have changed (in a statistically significant sense)? Use  0.05. Assume monthly sales are normally distributed.

  Estimator or appreciative for the population proportion

The best estimator or appreciative for the population proportion is 0.45. How large must the sample be?

  Central tendency and measure of varibility

Discuss what is meant by mean, median, mode, variance, and standard deviation for a set of scores. Also mention under what circumstance you would use each of these.

  Explaining population parameter or sample statistic

A recent survey by alumni of a major university indicated that average salary of 8000 of  its 250,000 graduates was $120,000.  Does this signify population parameter or sample statistic?

  Profit earned in the manufacture

If profit earned in the manufacture and sale of X units of a product is P dollars where: P = 10X - 0.001X2

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