Comparing two groups of scores

Assignment Help Basic Statistics
Reference no: EM13111869

The table below shows the scores of a group of 15 students in mathematics and art:

Student Math Art

1 22 53

2 37 68

3 36 42

4 38 49

5 42 51

6 58 65

7 58 51

8 60 71

9 62 62

10 65 65

11 66 66

12 56 56

13 66 66

14 67 67

15 62 65

Determine if the locations of distribution of scores for these students differ significantly for the two subjects. Use the hand calculation method and then use PHStat® or any other software. Compare the results and draw conclusions and recommendations based on those results.

Reference no: EM13111869

Questions Cloud

Determine the value of defective item : A lot of n items comprises k defectives, and m are chosen randomly and inspected. How must the value of m be selected so that probability that at least one defective item turns up is .90?
Example of directional alternate hypothesis : What is an example of a directional alternate hypothesis? What is an example of a non-directional alternate hypothesis?
What is the best guess of the time of death : You are investigating the scene of a hit and run where somebody's pet dog was killed. It is a very hot day so the dog's body temperature is unlikely to yield any important information regarding the time of death. The dog's limbs are movable and th..
Describe effects of leachate from landfills : I am trying to understand the effects of leachate from landfills and its effects on groundwater, and since I am in environmental health- its effects on the human health.
Comparing two groups of scores : The table below shows the scores of a group of 15 students in mathematics and art: Determine if the locations of distribution of scores for these students differ significantly for the two subjects. Use the hand calculation method and then use PHSta..
What is the fathers genotype : Achondroplasia (dwarfism) is an autosomal dominant disorder. A dwarf mother and a dwarf father have 4 children. The first 2 are dwarfs, and the last 2 are of normal height.
Stating null and alternative hypothesis : Lemarks Studios is looking for advertiser dollars to help with production costs on its newest blockbuster movie. Lemarks Studios has several companies that want product placement in the film.
For which kinds of alleles does inbreeding most strongly : How many times more likely is the offspring of a cousin mating to suffer its effects (that is, to be homozygous for it) than is an outbred individual?
Forming a quantitative perspective : I have been asked to suppose that faculty at my college are assigned overload courses hence additional compensation beyond the required contract hours based on seniority.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Hypothesis testing-traveling to outer space

A CBS News/New York Times poll found that 329 out of 763 adults said they would travel to outer space in their lifetime, given the chance. Estimate the true proportion of adults who would like to travel to outer space with 92% confidence.

  Sample a voluntary response sample

A pollster calls 500 randomly selected people and all 500 respond to her first question. Because the subjects agreed to respond, is the sample a voluntary response sample?

  Determining the null and alternate hypotheses

Assume that in a hypothesis test with null hypothesis H 0  : μ = 14.0 at a = 0.05, that a value of 13.0 for the sample mean results in the null hypothesis not being rejected. That corresponds to a confidence interval result of:

  Conclusion of the new mean

Note that Σ x  = 2233 and Σ x 2   = 138,053. At the 5% level of significance, can the instructor conclude that the new mean is different from 64?

  Create frequency distribution for ages strokes due to stress

Medical research team studied the ages of patient who had strokes caused by stress. Ages of 34 patients who suffered stress strokes. Create frequency distribution for these ages.

  Considering an extreme value for a sample

A sample of n=20 has a mean of M = 40. If the standard deviation is s=5, would a score of X= 55 be considered an extreme value? Why or why not?

  Random variable with standard deviation

The weight of the first orange minus the weight of the second orange) is a random variable with standard deviation and individual outcomes are uncertain but happen in a predictable manner through time.

  Tie in marginal discrepancy

Assume the first patient is assigned treatment A, and whenever there is a tie in marginal discrepancy, the next patient is assigned treatment A. Use w0 = 2 and w1 = 1. Show all you work.

  Length of a randomly selected call

The length of a particular telemarketing phone call has an exponential distribution with a mean equal to 1.5 minutes. Find the probability that the length of a randomly selected call will be between 30 - 50 minutes and 1 minuter or longer.

  Determining point estimate and standard error

Determine the point estimate in this study? Compute the standard error in this example?

  Independent sample t test for comparing means

At a .01 level of significance, test whether there is a difference between the 2 sample means. Construct a 99 percent confidence interval estimate of the difference between the two sample means.

  Examining statistical information and output of simulation

After 1,000-trial simulation, examine statistical information generated and compare output of simulation with your findings in Problem .Briefly describe the significant similarities and differences.

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