A business analyst wants to use the chi-square goodness-of-fit test if a uniform distribution is a good fit for the following observedfrequencies in eight categories along a single dimension. The desired level of significance is 0.05.CategoryFrequency 31312363126123284123319 3092The expected frequency in Category 4 is43105316629973178313

Given the observed frequencies and want to calculate expected frequency for the category

Answered: A business analyst wants to use the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The grade-point average of 20 BS Psychology seniors selected at random from the graduating class are as follows: 3.2 1.9 2.7 2.4 2.8 2.9 3.8 3.0 2.5 3.3 1.8 2.5 3.7 2.8 2.0 3.2 2.3 2.1 2.5 1.9 If you are asked to construct a frequency distribution for the given data, what would be the possible number of class intervals? CHOICES: A. 4 to 5 B. 4 C. 5 to 6 D. 6 to 7
Suppose you were given the following data for a section of STAT 210 with 126 enrolled students: 63 26 47 48 12 72 52 31 55 126 66 35 22 44 32 37 One of the classes in the sample is a section of STAT 210 with 126 enrolled students. Using this data, If the value of 126 were removed from the data set, which of the following statistics is a measure of center that would be heavily influenced by the removal? Standard Deviation Mean Range Median Inter Quartile Range
A statistic center compiles data on the length of stay by patients in short-term hospitals. A random sample of 21 patients yielded the data on length of stay, in days, shown below. Complete parts (a) through (e) below. 24 5 6 15 3 16 49 21 23 14 13 6 14 1 10 21 6 11 12 15 21 Determine and interpret the interquartile range (IQR). IQR=
According to IT department of leading financial firm, 50% of emails received by their employees are spam. They are planning to install a software which filters the spam emails. A reputable cybersecurity brand has launched a software which claims to detect 99% of spam emails. However, they have also reported 5% as the chance of detecting a non-spam email as spam. If an email is detected as spam, what is the probability of it in fact being a non-spam email?
For a Chi-Squared Goodness of Fit Test about a distribution that has the following characteristics: Category 1: 50% Category 2: 15% Category 3: 20% Category 4: 15% complete the table. Round to the fourth as needed. Categories 1 2 3 4 Observed Frequency 295 82 109 60 Expected Frequency
The grade-point average of 20 BS Psychology seniors selected at random from the graduating class are as follows: 3.2 1.9 2.7 2.4 2.8 2.9 3.8 3.0 2.5 3.3 1.8 2.5 3.7 2.8 2.0 3.2 2.3 2.1 2.5 1.9 If you are asked to construct a frequency distribution for the given data, what would be the possible number of class intervals? CHOICES: 6 to 7 4 4 to 5 5 to 6
8235#/full Pork... EmblemHealth Fin... ACCESS HRA - ACC... Account Link - ACC.. The mean score on this test is: 6.06 The median score on this test is: 6 Add Work Question 2 Find the five-number summary for the following data set. 87 84 89 88 89 81 82 89 88 84 Min Q1 Median Q3 Max 81 82 887.5 88 89 Add Work Question 3 The boxplots below shows salaries for Construction workers and Teachers Construction Teacher
This problem will take you through calculating the mean for grouped data by hand.The reason that the class midpoint is used in the table below is because it is the expected value for the average score in each class. Part A: Lower Class Limit Upper Class Limit Frequency Class midpoint Frequency times midpoint 40 44 1 45 49 3 50 54 4 55 59 11 57 627 60 64 20 62 1240 65 69 13 67 871 70 74 7 72 504 75 79 7 77 539 80 84 1 82 82 Part B: Now add up the last column of the table above. Part C: Now add up the third column of your table. Part D: Now divide your answer to Part B by your answer to Part C. This is the mean for the Grouped Frequency Data Table (GFDT).
The data below give the wait time in seconds for a random sample of callers when calling a local pizza restaurant. {66, 37, 4, 47, 12, 16, 62, 12, 21, 25, 49, 3} a. What is the point estimate for the average wait time for callers? b. Verify conditions for using this sample to predict population mean of wait times. Estimate the mean wait time for all callers to this restaurant, with 90% confidence. Write your answer as a sentence. C. d. Estimate the standard deviation of wait times for all callers to this restaurant, with 90% confidence. Write your answer as a sentence. (You do not need to check requirements.)
The data below show sport preference and age of participant from a random sample of members of a sports club. Is there evidence to suggest that they are related? Frequencies of Sport Preference and Age Tennis Swimming Basketball 18-25 87 83 85 26-30 98 93 89 31-40 66 66 56 Over 40 55 89 58 What can be concluded at the a = 0.10 significance level? a. What is the correct statistical test to use? Homogeneity Independence Paired t-test Goodness-of-Fit b. What are the null and alternative hypotheses? Ho The age distribution is not the same for each sport. Age and sport preference are dependent. The age distribution is the same for each sport. O Age and sport preference are independent. H₁: The age distribution is not the same for each sport. Age and sport preference are dependent. Age and sport preference are independent. The age distribution is the same for each sport. c. The test-statistic for this data = d. The p-value for this sample = e. The p-value is Select an answer α (Please show…
You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 296 cars as they pass by on the four lane freeway. The results are displayed in the table below. Use a level of significance of a = 0.10. a. Complete the rest of the table by filling in the expected frequencies: Frequency of Cars in Each Lane Outcome Frequency Expected Frequency Lane 1 73 Lane 2 59 Lane 3 79 Lane 4 85 b. What is the correct statistical test to use? Select an answer < c. What are the null and alternative hypotheses? Ho: The traffic and lanes are independent. The distribution of traffic is not uniform. The distribution of traffic is uniform. The traffic and lanes are dependent. H1: The traffic and lanes are independent. O The distribution of traffic is uniform. The distribution of traffic is not uniform. The traffic and lanes are dependent.
2. A coach gave her team a test on sit-ups completed in one minute. Using the data collected, the coach constructed the following frequency distribution: Scores 90-99 80-89 70-79 60-69 50-59 40-49 30-39 20-29 10-19 0-9 a. 9 12 17 13 10 7 3 1 What is the percentile score for a raw score of 38? Show your work. b.) The coach wants to take the top 20% of the team and train them for the World Sit-up Championships. What raw score cut-off would be used to choose the team? Show your work. Note: you can't have part of a person on the team.

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS