Ask Question, Ask an Expert


Ask Statistics and Probability Expert

problem 1)a) A farmer applies three kinds of fertilizers on 4 separate plots. The figures on yield per acre are tabulated below Perform the analysis of variance to test that:

1181_Fertilisers data.jpg

(i) The three fertilizers make any material difference in yields.

(ii) The plots are materially different in fertility.

You must construct an suitable ANOVA table and state your conclusion clearly.

b) Professor Newton is interested in determining whether his brightest students (those making best grades) tend to turn in their tests earlier (as they can recall material faster) or later (as they take longer to prepare down all they know) than the others in the class. For a particular physics test, he observes that students make grades given below in order of turning their tests in:

Order                                                    Grades
1-10                      94          70          85         89            92            98          63          88         74        85
11-20                    69         90           57         86            79            72           80         93          66       74
21-30                    50         55           47         59            68            63           89         51          90       88

If Professor Newton counts those making grade of 90 and above as his brightest students, then at a 5 percent level of significance, can he conclude that the brightest students turned their tests in randomly?

problem 2)a) Melisa’s Boutique has three small locations. Melisa keeps a daily record for each location of number of customers who actually make purchase. A sample of those data follows. Using Kruskal-Wallis, test at the 0.05 level of significance that her stores have same number of customers who buy.

Trianon           99           64          101           85           79            88            97         95          90        100
Caudan           83          102        125            61            91           96            94          89         93          75
Grand Baie    89            98           56           105           87           90            87         101         76         89

(b) A large hospital hires most of its nurses from universities in the area. Over the last year, they have been giving a test to newly graduated nurses entering hospital to find out which school, if either, seems to educate nurses better.

Based on following scores (out of 100 possible points), help personnel office of the hospital determine whether the schools differ in quality. Use the Mann-Whitney U test with a 10 percent level of significance.

                                                            Test Score        
 School A       97         69        73         84        76         92          90           88            84        87          93    
School B       88          99        65         69        97         84          85          89              91       90          87      91      72

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M96654

Have any Question? 

Related Questions in Statistics and Probability

Requirements the objective is ldquoan analysis of the

Requirements (The objective is “An analysis of the changes in recorded crime via authority over time”.) Assignment concerns a report on a provided data file and be expected to demonstrate a single variate analysis utilis ...

Topicnbspstate party structurethreadnbspfirst review the

Topic:  State Party Structure Thread:  First, review the Reading & Study presentation "Political Structure at the State Level" as an example about the structure of the Republican Party in Virginia Select 1 of the major p ...

Simple takes about 25 minutes to answer in a study

Simple! (Takes about 25 minutes to answer.) In a study evaluating "Why minority males graduate American high-schools at lower rates than their counterparts", the following is needed: 1) Envisioned Quantitative Design 2) ...

1 what value of cronbachamp39s alpha coefficient indicates

1. What value of Cronbach's alpha coefficient indicates acceptable interitem reliability? 2. Why are researchers sometimes not able to test the reliability of their measures? 3. What steps can be taken to increase th ...

Putting measurement to workthis exercise gives you the

Putting Measurement to Work This exercise gives you the opportunity to develop a measurement strategy of your own. 1. Identify an area of the social sciences you know something about (aging, marriage and the family, crim ...

Suppose we randomly sample 400 nucleotides from the human

Suppose we randomly sample 400 nucleotides from the human genome. (Consider only a single strand.) Does the occurrence of adenine, thiamine, cytosine and guanine (A, C, T and G) in this sample suggest that nucleotides in ...

1 your eccentric aunt has left you 50000 in alcan shares

1) Your eccentric aunt has left you $50,000 in Alcan shares plus $100,000 cash. Unfortunately, her will requires that the Alcan stock not be sold for one year and that $60,000 cash must entirely be invested in T-bills wi ...

Consider the extensive-form game and the scenario shown in

Consider the extensive-form game and the scenario shown in given Figure. a. Compute belief probabilities that are consistent with this scenario. b. For each player, at each of his information states, compute the sequenti ...

In this exercise we consider a situation with n men and n

In this exercise we consider a situation with n men and n women. (a) Prove that if in stage t of the men's courtship algorithm, a particular man is dismissed for the (n - 1)-th time, then the algorithm terminates at stag ...

The mean incubation time for a type of fertilized egg kept

The mean incubation time for a type of fertilized egg kept at 100.7° F is 22days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. (a) The probability that a r ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro