Nobody downloaded yet

Statistics assignment - Essay Example

Comments (0) Cite this document
Summary
The null hypothesis is that there is no difference in solution time of 6-year-olds and 8-year-olds and the experimental hypothesis is that there is difference in solution time of…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER91.4% of users find it useful
Statistics assignment
Read TextPreview

Extract of sample
"Statistics assignment"

Download file to see previous pages The planned analysis is the t-test for Independent Samples. The three assumptions of the t-test for Independent Samples are met. The independent variable (age group) represents two unique groups as 6-year-olds and 8-year-olds. The dependent variable is measured using an interval scale. The variances of the two groups (6-year-olds and 8-year-olds) solution time are equal that is confirmed by the Levenes Test for Equality of Variances, F (24, 24) = 1.784, p = .188.
There was a significant effect of age on solution time of jigsaw puzzle, t(48) = 3.96, p < .001, with 6 year olds children’s solution times for jigsaw puzzles was higher than 8 year olds children’s solution times for jigsaw puzzles.
The results of the analysis are t(48) = 3.96, p < .001. Since the p-value is less than .05, we reject the null hypothesis of no differences between the means of the solution times for jigsaw puzzles for two age groups. The difference is statistically ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“Statistics assignment Essay Example | Topics and Well Written Essays - 500 words”, n.d.)
Statistics assignment Essay Example | Topics and Well Written Essays - 500 words. Retrieved from https://studentshare.org/miscellaneous/1552000-statistics-assignment
(Statistics Assignment Essay Example | Topics and Well Written Essays - 500 Words)
Statistics Assignment Essay Example | Topics and Well Written Essays - 500 Words. https://studentshare.org/miscellaneous/1552000-statistics-assignment.
“Statistics Assignment Essay Example | Topics and Well Written Essays - 500 Words”, n.d. https://studentshare.org/miscellaneous/1552000-statistics-assignment.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
CHECK THESE SAMPLES - THEY ALSO FIT YOUR TOPIC
Statistics assignment
...?Running head: HOURS WORKED PER WEEK Effect of Gender, Work Status and Age on Hours Worked per Week July This study analysed the effect of gender, work status and age on number of hours worked per week in job along with relationship between individuals work status and their gender. The analysis was performed using the 2006 Northern Ireland Life & Time Survey data. The statistical methods used for the analysis were Independent-Samples t-Test, Analysis of Variance (ANOVA), Chi-Square Test of Independence and Correlation. The results suggested significant effect of gender and individual work status on number of hours worked per week in job, however, age have no significant effect on number of hours worked per week in job....
12 Pages(3000 words)Assignment
Statistics Assignment 4
...1. A research is usually meant to study the characteristics of a population. However, the size of a population in most cases is so large that it is not possible to gather all the relevant information on all population units. Rather it is a much more convenient option to collect a sample from the population and conduct a similar research on it and later check the significance of the results so obtained. 2. A simple random sampling refers to the case where a sample is drawn at random from the population and a research is conducted on it. On the other hand, stratified sampling implies the same research when conducted after dividing the total sample into various strata and then considering each individual result as one of the inherent...
3 Pages(750 words)Speech or Presentation
Statistics Assignment
...then be computed as follows: Based on these parameters, it is then possible to determine whether the advertized mean differs from the actual mean. Hypotheses: H0: The advertized mean is the same as the actual mean. H1: The advertized mean differs from the actual mean. Degrees of Freedom: From the t-distribution table, the corresponding critical value for two tails at 90% confidence is 1.761. Decision Rule: Reject H0 if 1.761 Calculations: Conclusion: Since 1.761, H0 is rejected. At 90% confidence, there is sufficient evidence to support that the advertized and actual mean life times differ. Answer 9 At a sample size of 23, it is appropriate to use the t-distribution in place of z-scores. Since the relevant sample...
13 Pages(3250 words)Speech or Presentation
Statistics Assignment
...for p is; p±Z∂α where Z = 1.96 (95%) and ∂α is the proportion test statistic ∂α = , =.04± (1.96* {[(.37*.63)/100]+ [(.41*.59)/100]}1/2 = .04±1.96*0.069 =.04±0.135 Considering each alone, Leaflets alone =.37±1.96 {(.37*.63)/100}1/2 =.37±.095 For the discussions group =.41±1.96 {(.41*.59)/100}1/2 =.41±.096 This means that the proportion of improvement of those that participated in the discussions and group exercise overlap the proportion of improvement of those that did not. This means that participating in group discussions and exercises is beneficial in reducing chronic back pain than receiving leaflets alone. The interval, .04±0.135 indicates that the impact of discussions and group exercises has a proportion...
4 Pages(1000 words)Essay
Statistics assignment
...Statistics 302 Assignment 2 Report written by: Number: ”I confirm that I have not received help from, or given help to, anyone else in constructing the solution to this assignment” ______________________ Name Q1. (10) The number of UBC students infected by H1N1 is a Poisson random variable with rate 5 per week. (a) What is the probability that there are more than 10 students infected in a week? Solution: The poisson probability is given by: p(x; μ) = (e-μ) (μx) / x! The probability that more than 10 students are infected in a week = P(x>10, μ = 5) = e-(5) * [(511)/11! + (512)/12! + (513)/13! + … + 5^20/20! +..] P(x>10, μ = 5) = e-(5) * 2.0325 P(x>10, μ = 5) =...
2 Pages(500 words)Statistics Project
Maths and Statistics Assignment 2
...Maths and Statistics - Assignment #2 Q a) The arc of a circle with a radius of 5cm is subtended by an angle of 24o. What is the length of the arc? What is the area of the sector? (Hint: first convert to radians) Radius, cm Angle, Angle in Radians, Length of an arc is given by Therefore, ≈ 2.09 cm (2d.p.) The length of the arc is about 2.09 cm. Area of a sector is given by ( in radians) Therefore, ≈ 5.25 cm2 (2d.p.) The area of the sector is about 5.24 cm2. (b) In the diagram below the line AB is a tangent to the circle of radius x. What is the radius of the circle? (Hint: find out the definition of a tangent) A tangent to a circle is a straight line that touches the circle at only one...
4 Pages(1000 words)Essay
Statistics Assignment
...is p. However, if receiving a jolt of electricity on one-occasion affects the following occasions than probability (p) will not remain the same for other occasions (because Charlie will be not alive for following occasions). In that circumstance, the probability that Charlie receives the life-ending shock on that last nth insertion will be. 5. n = 100, = 7 years and s = 2 years a. The null and alternate hypotheses are (Mean has not changed from the value of 7.5 years of 20 years ago) (Mean has changed from the value of 7.5 years of 20 years ago) The test is two-tailed test. b. The test statistic is c. The p-value for the test is 0.0124. p-value = 2 * P(z < -2.50) = 2*0.0062 = 0.0124 Decision: Reject null hypothesis,...
1 Pages(250 words)Speech or Presentation
Statistics Assignment Week 6
...those who didn’t do the extra credit tests (assignment) scored least (M= 7.54, SE= .19). The significance criterion is shown by p= .002 ( Leech & Morgan,2005). This significance shows the importance of students to sitting for extra credit tests. It makes them ready and well prepared for the final exam. It can also be used by the administration and parents in convincing the students on the importance of extra credit tests. References Green, S. B., & Salkind, N. J. (2003). Using SPSS for Windows and Macintosh: Analyzing and Understanding Data (3rd ed.). Upper Saddle River, NJ: Prentice Hall. Leech, N. L., & Morgan, G. A. (2005). SPSS for Intermediate Statistics: Use and Interpretation (2nded.). Mahwah,...
2 Pages(500 words)Research Paper
Statistics Assignment
...and the claim is to be a true one whereas the null hypothesis is that the perceived quality of merchandise is a not a determining factor of store image for shoppers at. (ii) Answer: The pooled sample proportion is p=(n1p1+n2p2)/(n1+n2)=(0.74*350+0.52*500)/(350+500)=(259+260)/850=0.611 (iii) Answer: If the test statistic is 6.474, the p value for one tailed test is almost 0. It is given by p=3.16001E-10=0.000000000316 2. a. Answer: The minor problem may be due to the expected frequency of Unspecified for male is less than 5. Since for applying Chi Square test each cell expected frequency should be minimum 5 to maintain the continuity of Chi Square. But this is violated. So only the unspecified data is not included. b...
5 Pages(1250 words)Statistics Project
Statistics Assignment
... Chapter 6 &7 Answers C 2. A 3. A 4. B 5. C 6. B 7. A 8. B 9. B 10. C Question 22. r= r 10x 353 -55 x 59)/{(10x415)-552}1/2x {(10x 384)-592} = 285/33.5410 x18.9473 = 285/635.5112 = 0.45 r= 0.45 indicates that there is a low positive correlation between mood and creativity. Predicted creativity would be the average creativity score for all participants that is 59/10= 5.9. Standard deviation= 1.78 The error would be + or – 1.78 Regression model y=a + bx a = = (59- 0.79x55)/10 =1.56 Slope b= (Roger,73) = (10x 353-59x55)/(10x415-592) = 190905/241369 = 0.79 and x =3 Y= 1.56 +0.79 x 3 Ý=3.93 The error would reduce using the regression analysis by 1.97 Question 23 The statistics to be used... the...
1 Pages(250 words)Assignment
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Statistics assignment for FREE!
Contact Us