Question

In: Statistics and Probability

Question 3.4 in Statistical Methods and Data Analysis by Lyman Ott and Michael Longnecker 3.4 The...

Question 3.4 in Statistical Methods and Data Analysis by Lyman Ott and Michael Longnecker

3.4 The regulations of the board of health in a particular state specify that the fluoride level must not exceed 1.5 parts per million (ppm). The 25 measurements given here represent the fluoride levels for a sample of 25 days. Although fluoride levels are measured more than once per day, these data represent the early morning readings for the 25 days sampled. .75 .86 .84 .85 .97 .94 .89 .84 .83 .89 .88 .78 .77 .76 .82 .72 .92 1.05 .94 .83 .81 .85 .97 .93 .79 a. Determine the range of the measurements. b. Dividing the range by 7, the number of subintervals selected, and rounding, we have a class interval width of .05. Using .705 as the lower limit of the first interval, construct a frequency histogram. c. Compute relative frequencies for each class interval and construct a relative frequency histogram. Note that the frequency and relative frequency histograms for these data have the same shape. d. If one of these 25 days were selected at random, what would be the chance (probability) that the fluoride reading would be greater than .90 ppm? Guess (predict) what proportion of days in the coming year will have a fluoride reading greater than .90 ppm.

How do you create a frequency histogram and relative requency histogram with class interval on the X axis in SPSS ?

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

Regression analysis is an important statistical method for the analysis of business data. It enables the...
Regression analysis is an important statistical method for the analysis of business data. It enables the identification and characterization of relationships among factors and enables the identification of areas of significance. The performance and interpretation of linear regression analysis are subject to a variety of pitfalls. Comment on what these pitfalls may be and how you would avoid them. Use an example if it helps to clarify the point.
Question 1 Qualitative methods rely on text and image data, have unique steps in data analysis,...
Question 1 Qualitative methods rely on text and image data, have unique steps in data analysis, and draw on diverse designs. True False Question 2 Observational protocol is a form used by a quantitative researcher for recording and writing down information while observing. True False Question 3 The purpose statement in a research proposal sets the abstract, the intent, and the major idea for the study. True False Question 4 Qualitative documents are always private documents (e.g., personal journals and...
Three methods for cost prediction: Engineering estimates, Account analysis, Statistical methods. Required: Discuss the advantages and...
Three methods for cost prediction: Engineering estimates, Account analysis, Statistical methods. Required: Discuss the advantages and disadvantages of each.
what are the strength and weaknesses of formal theory and statistical analysis? how can these methods...
what are the strength and weaknesses of formal theory and statistical analysis? how can these methods be combined with qualitative methods? (word limit:700 words)
These weekly exercises provide the opportunity for you to understand and apply statistical methods and analysis....
These weekly exercises provide the opportunity for you to understand and apply statistical methods and analysis. Unless otherwise stated, use 5% (.05) as your alpha level (cutoff for statistical significance). # 1. Which type of ANOVA would you use for each of the studies below? • One-way between subjects (independent groups) • One-way within subjects (repeated measures) • Two-way between subjects a. Measure the self-esteem of the same group of college students at the beginning, middle and end of their...
Business Finance Detailed analysis of statistical methods to access stand alone risk?
Business Finance Detailed analysis of statistical methods to access stand alone risk?
Your assignment is to do a detailed statistical analysis of the data to be able to...
Your assignment is to do a detailed statistical analysis of the data to be able to decide later what would be appropriate control charts to monitor these variables. The manager provides you data that the office has collected on these two variables: Time it takes since the patient checks-in until the patient checks-out Number of patients in the waiting room Present a report to the manager with the results of the statistical analysis of the data and your conclusions on...
Your assignment is to do a detailed statistical analysis of the data to be able to...
Your assignment is to do a detailed statistical analysis of the data to be able to decide later what would be appropriate control charts to monitor these variables. The manager provides you data that the office has collected on these two variables: Time it takes since the patient checks-in until the patient checks-out Number of patients in the waiting room Present a report to the manager with the results of the statistical analysis of the data and your conclusions on...
Your assignment is to do a detailed statistical analysis of the data to be able to...
Your assignment is to do a detailed statistical analysis of the data to be able to decide later what would be appropriate control charts to monitor these variables. The manager provides you data that the office has collected on these two variables: Time it takes since the patient checks-in until the patient checks-out Number of patients in the waiting room Present a report to the manager with the results of the statistical analysis of the data and your conclusions on...
what does it mean for the findings of a statistical analysis of data to be statistically...
what does it mean for the findings of a statistical analysis of data to be statistically significant
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT