## CHECK THESE SAMPLES OF Two Statistical Methods

...be found acceptable. The different types of sampling **methods** are Single sampling: these plans are the simplest, in that they require a ratio sample to be drawn at random from the lot and tested. If the number of non – confirming units is less than the pre-set limit, the lot is accepted. It the number is higher, the lot is rejected. Double sampling. These plans require one sample to be drawn; which is tested. There are **two** preset limits for how many non – confirming units may be found; these divide the possibility of errors into three parts. If errors are less than the lower limit, the lot is accepted, while if they are more than the higher limit, it is rejected. If the number falls in between, then the...

8 Pages(2000 words)Assignment

...be calculated from the test **statistic** for appropriate test.
For Q1, the standard normal distribution test **statistic** is.
(96.4 - 100) / (14/5) = -1.286
From Z tables of standard normal distribution, P (Z -1.286) = 1 - P (Z 1.286)
= 1 - 0.89973 = 0.10027
Since we are conducting **two** tailed test, the associated p-value is 0.10027 2 = 0.20054.
Since this is much higher than 0.05, we have insufficient evidence to reject H0.
For Q2, the t-distribution test **statistic** is
(96.4 - 100) / (18 / 5) = -1
From the t-distribution tables, P (t24, 0.025 -1) = 0.15
Since this is one sided, 0.15 2 = 0.3. This is also higher than 0.05 and hence we have insufficient evidence...

8 Pages(2000 words)Math Problem

...Pr {- 2.3355 < Z < 2.3355} = 0.9808
: 0.05 p = 2*0.0096 = 1 - 0.9808 = 0.0192
The test shows that there is a significant **statistical** difference between the sample mean and the hypothesized mean, on a 95% confidence level. We, therefore, reject the null hypothesis.
Question 6
sample size 121 degree of freedom 120
sample mean 47.50 critical t 1.658
sample standard deviation 7.50
90% confidence interval (46.37, 48.63)
Assuming that the population standard deviation is equal to the sample standard deviation, the confidence interval becomes:
(46.38, 48.62)
The **two** intervals do not seem to have a significant difference between them. This is a result of having a large sample...

4 Pages(1000 words)Research Paper

...Article Review Synopsis Article: **Statistical** **Methods** in Psychology Journals: Guidelines and Explanations. Published in American Psychologist. Vol. 54, No. 8, 594–604 Written by Leland
Wilkinson.
The article takes the ongoing dispute over the applications of significance testing in psychology journals into consideration. The article was motivated greatly by the publication of Cohens (1994) article, the Board of Scientific Affairs (BSA) of the American Psychological Association (APA) convened a committee called the Task Force on **Statistical** Inference (TFSI) whose charge was "to elucidate some of the controversial issues surrounding applications of **statistics** including...

5 Pages(1250 words)Essay

...Comparison between **two** **methods** SSADM AND MERISE TECHNIQUES by Introduction This report presents the SSADMtechniques through NIMSAD analysis and finds out the main qualities of this system molding technique. The second main part of this report is regarding the MERISE technique for the better system modeling and design. This research is basically aims to discuss these **two** **methods** regarding the enhanced system development and modeling.
SSADM comprises a series of design regulations and procedures that upholds software precision and cleanness, by this means minimizing the time and endeavor essential for coding, debugging and continuation. The most important rule of SSADM is...

12 Pages(3000 words)Essay

...I a) **Two** dice are rolled together what is the probability of getting a number on the second die so that the total of the numbers on the **two** dice is more than 10, given that the first is showing a 6.
Answer
Let the probability of getting a 6 in the first die be A
Let the probability of getting number 4 or higher in the second die be B
P (A) =1/6
P (B) =3/6
The conditional probability
P (B│A) =
P (A ∩ B) =P (A).P (B)
=1/6 X 3/6
= 3/36
Therefore
P (BI A) =3/36 x6
=1/2
b) A service station has one pump for unleaded petrol, which (with an attendant) can service 10 customers per hour. Cars arrive at the unleaded...

4 Pages(1000 words)Essay

... with the babies. These include the hearing ability, brain development, the general mood and appetite of the infant. Qualitative readings are represented scientifically in histograms, graphs and charts (Chiang 2003). However, quantifiable data are summarized to measure the correlation, variability and central tendencies. Merging of the **two** **methods** in a mixed approach provides a comprehensive answer that determines the responses of speech and language amidst infants.
Reference
Chiang, C. L. (2003). **Statistical** **methods** of analysis. New Jersey, NJ: World Scientific... Doctoral **statistical** **methods** Task Doctoral **Statistical** **Methods** **Statistical**...

1 Pages(250 words)Essay

.... This corresponds to the results from the Anova, regression and correlation results. It is worth noting that this maybe so because hotel industry is ‘predominated’ by female workers.
Bibliography
Snedecor, G. W., & Cochran, W. G. (1989). **Statistical** **methods**. Ames: Iowa State University Press.
Freund, R. J. (2010). **Statistical** **Methods**, Students Solutions Manual (e-only). Burlington: Elsevier Science.
APPENDIX: RESULTS
Gender of Respondent
Frequency
Percent
Valid Percent
Cumulative Percent
Valid
Male
96
47.8
48.0
48.0
Female
104
51.7
52.0
100.0
Total
200
99.5
100.0
Missing
System
1
.5
Total
201
100.0
Employer of Respondent
Frequency
Percent
Valid Percent
Cumulative...

11 Pages(2750 words)Assignment

...Chapter 7 Questions. Exercises 4. An industrial psychologist obtains scores on a job-selection test from 41 men and 31 women with the following results: Men M= 48.75 (SD =9.0); Women M = 46.07 (SD = 10.0). Test the difference for the significance at both the .05 and .01 levels (**two**-tailed). Determine the effect size for the difference of these **two** sample means. Does this effect size seem to be large or small?
10. Suppose that you have read the following sentence in a psychology journal: “The experimental group obtained a higher score on the recall task (M= 14.7) than did the control group (M=11.1), and this difference was **statistically** significant, t (38) =2.3, p < .05.” Assuming the...

3 Pages(750 words)Assignment

...**Statistical** **Methods** in economics **Statistical** **Methods** in Economics How long are bicycles hired for (on average) onthe Santander London Bicycle Hire scheme?
With the increasing heavy traffic and the ever increasing economy of London, there is need to find an alternative **method** to ease the heavy traffic witnessed in London. In fact according to Godwin (2004) the leading cause of traffic congestion is because the roads are full and close to the maximum capacity. In connection to this, a few years ago Santander Bicycle scheme was introduced by London so as to give people opportunity to hire bicycles from various docking stations in London. This was also intended to improve people’s fitness and reduce traffic congestion within the city... . The...

4 Pages(1000 words)Coursework