Statistics Analysis

 

1. An ANOVA was conducted to compare the mean height increase of patients on 4 different growth hormone treatments. The test yielded a significant difference in means. When ranking the means, how many paired-comparisons of means are possible? B

4

6
8
16
2. Tukey’s method of multiple comparisons of means will lead to a probability of at least one Type I error that is higher than anticipated (selected). True or False. F

3. When analyzing categorical (qualitative) data, inferences are made about: B

α values
proportions
means
variances
4. A Chi-Squared Goodness of Fit (GOF) test is the proper test to apply to compare population proportions in a multinomial experiment involving categorical data. True or False T

5. A 95% confidence interval for the true proportion of all law school graduates who fail the bar exam is (0.03, 0.22). Give a practical interpretation of this interval. C

A. We can conclude, with legitimate statistical evidence, that approximately 95% of lawgraduates will score between 3% and 22% on the bar exam.

B. We can conclude, with legitimate statistical evidence, that the true proportion lawschool graduates will be either 3 or 22.

C. We are 95% confident that the true proportion of all law school graduates who fail the bar exam is between 0.03 and 0.22.

D. We are 95% confident that the true mean of all law school graduates who fail the bar exam is between 0.03 and 0.22.

 

 

Sample Solution

the individuals may want to ensure that they perform well because they will not want humiliation of their “failures” or poor results being publically announced to the firm. In spite of this, it can be a cause of demotivating staff that were not achieving as well as others in the organisation due to the fact that they may be feel humiliated from public announcements.
Another reward system that GCS have in place is the commission based paying system, the consultants will be paid commission on the gross margins between the price charged to the client and what GCS paid the contractor (King, Chung & Hunter, 2014). This will motivate the staff in wanting to make sure that they achieve a large gross margin to receive more commission (King, Chung & Hunter, 2014). Both of these reward systems will link with the operational excellence and ensure that the company achieve their business goals because both reward systems are a way of which the firm motivates their staff to hit business goals and ensuring that they are providing a high level service to their clients.

The staffing and reward systems show a strong sense of GCS using a strategic-fit approach framework within their business model to achieve the operational excellence. Both of the HR practices fitted in with the vertical fit of the firm in order to help the organisation gain competitive advantage and market share. As well as fitting the horizontal fit of ensuring that each practice aligned with one and other in order to work in harmony, recruiting the correct staff lead to higher possibility of staff reaching goals and therefore receiving rewards from GCS. In spite of this, there are still areas in which GCS need to improve their HR practices to increase their productivity, performance and competitiveness within the market.

GCS uses a variety HRM practices such as 360-degree recruitment, reward based s

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