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QUESTION FOUR S MARKS The mean monthly sales of an insurance company is Ksh. 81,90. The...
Question Four a) The mean monthly sale of an insurance company is Kshs.81, 590. The manager...
Question Four a) The mean monthly sale of an insurance company is Kshs.81, 590. The manager designed a program to improve sales. Ten agents were selected randomlyto participate in the program. Their monthly sales were recorded in thousands as follows: By testing hypothesis, does this data provide enough evidence to indicate that the program was a success? b) A sample of 150 students selected randomly from a population of students in college. Their agesare presented in the table below: Age...
QUESTION 35 Problem 5) Final scores of all the students in randomly selected 3 sections in...
QUESTION 35 Problem 5) Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods I at Sarn Houston State University are presented below. There are 15 sections in total Section 3: (69.92, 66, 81.76, 55, 70, 83, 68, 57.80, 66, 69, 55, 88, 70, 70, 70,56,50) Section 6: (10, 73, 88, 58, 89,69, 63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81, 68, 89) Section 9: (30, 85, 76, 73, 92,...
2. Many high schools have education programs that encourage teachers to embrace racial tolerance,...
2. Many high schools have education programs that encourage teachers to embrace racial tolerance, recognize ethnic diversity, and overcome racial stereotypes. To gauge the effectiveness of one such program that utilizes two videos of teachers engaging in racial stereotypes of their students, researchers from New York University and City University of New York recruited 238 high school professionals (including teachers and counselors) to participate in a study (Journal of Moral Education, March 2010). Teachers watched the first video, then were...
48 57 Amy Bakery has four shops in different area in a city. Monthly sales (in...
48 57 Amy Bakery has four shops in different area in a city. Monthly sales (in thousands of dollars) from a random of 24 months from each of the 4 shops given in Table 1. Table 1: Monthly sales (in thousands of dollars) North East South West 77 75 97 60 45 42 60 54 56 49 68 47 44 39 58 57 63 61 69 51 75 63 79 50 90 81 99 73 32 47 46 41 41...
Question Four Total 25 Marks 4 marks (i) Distinguish between Type I and Type Il errors...
Question Four Total 25 Marks 4 marks (i) Distinguish between Type I and Type Il errors in hypothesis testing (i) Nineteen employees working in the call centre of a bank were chosen at random from the workforce and agreed to assist in the assessment of two different training programmes (A and B).Each employee was then given a performance score (measuring a range of aspects of their work) expressed as a mark out of a possible maximum of 100. The results...
Student stress at final exam time comes partly from the uncertainty of grades and the consequence...
Student stress at final exam time comes partly from the
uncertainty of grades and the consequences of those grades. Can
knowledge of a midterm grade be used to predict a final exam grade?
A random sample of 200 BCOM students from recent years was taken
and their percentage grades on assignments, midterm exam, and final
exam were recorded. Let’s examine the ability of midterm and
assignment grades to predict final exam grades.
The data are shown here:
Assignment
Midterm
FinalExam...
1. X is normally distributed with mean 30 and standard deviation 2.5 a) P(X > 33)...
1. X is normally distributed with mean 30 and standard deviation 2.5 a) P(X > 33) = Answer b) P(X < 32) = Answer c) P(32 < X < 33) = Answer d) What value of X cuts off the top 10% of the distribution X=Answer e) What value of X cuts off the bottom 16% of the distribution X=Answer 2. A recent article in the Daily Telegraph newspaper reported that only one in five new college graduates are able to...
Project #2 Wal*Mart Dry Goods Sales 2003-2004 The following items are a guide for responses to be addressed in project two. Note that WalMart’s fiscal year starts the first week of February. This means that when analyzing the data, week 41 is actually w
Project #2Wal*Mart Dry Goods Sales 2003-2004The following items are a guide for responses to be addressed in project two. Note that WalMart’s fiscal year starts the first week of February. This means that when analyzing the data, week 41 is actually week 45 (41+4 weeks for January) in 2003 or the beginning of November 2003. Also, week 52 is actually week 4 (52+4 weeks for January 2003 minus 52 weeks for 2003) in 2004 or the end of January 2004. ...
photos for each question are all in a row (1 point) In the following questions, use...
photos for each question are all in a row
(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
M. - N O P Q R S T U a 4 Credit Debit 28,250 28,250...
M. - N O P Q R S T U a 4 Credit Debit 28,250 28,250 AB E F HT Solution: 5 Part A: 6 Jelly World, Inc., is a purveyor of artisan jellies and is known for its high quality Journal Entries: 7 merchandise. The business started up in January 2015 and has been quite 1 Cash 8 successful. Complete the Journal Entries for all 2019 transaction and adjustment Accounts Receivable 9 information listed below. You do not have...
Question Four a) The mean monthly sale of an insurance company is Kshs.81, 590. The manager designed a program to improve sales. Ten agents were selected randomlyto participate in the program. Their monthly sales were recorded in thousands as follows: By testing hypothesis, does this data provide enough evidence to indicate that the program was a success? b) A sample of 150 students selected randomly from a population of students in college. Their agesare presented in the table below: Age...
QUESTION 35 Problem 5) Final scores of all the students in randomly selected 3 sections in a course, "Statistical Methods I at Sarn Houston State University are presented below. There are 15 sections in total Section 3: (69.92, 66, 81.76, 55, 70, 83, 68, 57.80, 66, 69, 55, 88, 70, 70, 70,56,50) Section 6: (10, 73, 88, 58, 89,69, 63, 76, 87, 82, 97, 76, 66, 95, 84, 88, 82, 81, 68, 89) Section 9: (30, 85, 76, 73, 92,...
2. Many high schools have education programs that encourage teachers to embrace racial tolerance, recognize ethnic diversity, and overcome racial stereotypes. To gauge the effectiveness of one such program that utilizes two videos of teachers engaging in racial stereotypes of their students, researchers from New York University and City University of New York recruited 238 high school professionals (including teachers and counselors) to participate in a study (Journal of Moral Education, March 2010). Teachers watched the first video, then were...
48 57 Amy Bakery has four shops in different area in a city. Monthly sales (in thousands of dollars) from a random of 24 months from each of the 4 shops given in Table 1. Table 1: Monthly sales (in thousands of dollars) North East South West 77 75 97 60 45 42 60 54 56 49 68 47 44 39 58 57 63 61 69 51 75 63 79 50 90 81 99 73 32 47 46 41 41...
Question Four Total 25 Marks 4 marks (i) Distinguish between Type I and Type Il errors in hypothesis testing (i) Nineteen employees working in the call centre of a bank were chosen at random from the workforce and agreed to assist in the assessment of two different training programmes (A and B).Each employee was then given a performance score (measuring a range of aspects of their work) expressed as a mark out of a possible maximum of 100. The results...
Student stress at final exam time comes partly from the
uncertainty of grades and the consequences of those grades. Can
knowledge of a midterm grade be used to predict a final exam grade?
A random sample of 200 BCOM students from recent years was taken
and their percentage grades on assignments, midterm exam, and final
exam were recorded. Let’s examine the ability of midterm and
assignment grades to predict final exam grades.
The data are shown here:
Assignment
Midterm
FinalExam...
photos for each question are all in a row
(1 point) In the following questions, use the normal distribution to find a confidence interval for a difference in proportions pu - P2 given the relevant sample results. Give the best point estimate for p. - P2, the margin of error, and the confidence interval. Assume the results come from random samples. Give your answers to 4 decimal places. 300. Use 1. A 80% interval for pı - P2 given that...
M. - N O P Q R S T U a 4 Credit Debit 28,250 28,250 AB E F HT Solution: 5 Part A: 6 Jelly World, Inc., is a purveyor of artisan jellies and is known for its high quality Journal Entries: 7 merchandise. The business started up in January 2015 and has been quite 1 Cash 8 successful. Complete the Journal Entries for all 2019 transaction and adjustment Accounts Receivable 9 information listed below. You do not have...
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