1. The water quality of the Sarawak River system was tested for heavy metal contamination. The average heavy metal concentration from a sample of 49 different locations is 3 grams per milliliter with a standard deviation of 0.5. Construct a 99% confidence interval for the mean heavy metal concentration.

Q: Explain the term Continuous Quantitative Data?

A: Continuous data is Quantitative data. Continuous Quantitative data is which can be measured or…

Q: What are 2 situations when you will use mode as a measure for central tendency.

A: Mode mode is the value which occurs most frequentlyn in the data set of observation and around which…

Q: What is the point of the ‘Exploration’ phase? What is the difference between  ‘Exploration’ and the…

A: Exploratory research helps you to gain more understanding of a topic.  It helps to gather…

Q: How can we calculate the Average Rates of Change?

A:

Q: The simpliest steps on solving Linear Correlation Analysis on a graph?

A: The scatter diagram is a diagram which graphs pairs of numerical data, with one variable on each…

Q: Uncertainty and risk play important roles in decision-making. Discuss how these factors affect…

A: Introduction: When making decisions, we often face uncertainty and risk. Uncertainty refers to a…

Q: The margin of error in a research study is indicative of the precision and accuracy of the research…

A: Margin of error is a measure of the extent to which the sample may vary from population.  It is a…

Q: Explain why point estimates cannot be trusted.

A: A point estimate is a single value as an estimate of the population parameter using a sample data.…

Q: What are models in Quantitative research

A: Quantitative research is the process of collecting and analyzing numerical data. It can be used to…

Q: True or false: A scatter plot can show that a change in one variable causes a change in the other.

A: The scatterplot of two variables only show how the two variables are association with each other by…

Q: In regression and correlation, explained variation (r2) represents

A: The explained variation r2 also called as coefficient of determination.

Q: Qualitative Data Which is placed into categories whose order is meaningless comes under which scale?

A: Introduction: Scales of measurement: Nominal: When the possible observations are tags or categories…

Q: The most commonly used measure of central tendency

A: here use basic of central tendency

Q: How to draw line of best fit

A: Line of best fit: It is a straight line in a scatterplot that balances about an equal number of…

Q: What is the use of power curve?

A: The power curve is represented by 1-β where β stands to be the probability of committing type II…

Q: Define relative efficiency?

A:

Q: make a regression analysis about any healthcare issue

A: Let's perform a simple regression analysis on a healthcare issue. We'll analyze the relationship…

Q: The coefficient of determination measures the percentage of variation in the independent variable…

A: The coefficient of determination measures the percentage of variation in the dependent variable…

Q: 1) Determine whether the data described is qualitative or quantitative. If it is quantitative, state…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How statistical analysis is important in measuring continuous outcome of patient care in nursing…

A: Statistical analysis is used in almost all fields including nursing field. 1. Timing of medication…

Q: big idea 9.2

A: the meaning of 9.2 is =92/10 that is equal to 46/5

Q: Regression and correlation are used for estimation. Select one: True False

A: The most commonly used estimation techniques for investigating the relationship between two…

Q: give examples of regression analysis and correlation analysis

A: Regression analysis helps to predict the values of the response variable with the help of…

Q: Explain what a dummy variable is and how it is used in regression analysis

A:

Q: explain  Regression analysis and its limations

A: Regression analysis  :  Regression  analisis is a power statstical method  is identifying  the…

Q: Duration is what typye of data?

A:

Q: Central tendency most used in psychology

A: Solution Yes Central tendency is very useful in psychology. It lets us know what is normal or…

Q: Define Multiple Regression?

A: Regression It is used to describe connection between a response variable and one or more regressors

Q: What does linear mean?

A: By definition, a function is a special case of a relation between the members of two sets. It is a…

Q: Define the Test a slope for significance?

A:

Q: What type of variation illustrate the increase or decrease of both variables together

A: To describe the type of variation

Q: Does data have to always be numerical in statistics?

A: Does data have to always be numerical in statistics

Q: What do you mean by relative frequency?

A: To understand the relative frequency let me first explain the frequency. Frequency - The number of…

Q: Why is the concept of variability important?

A: Variability serves as both a descriptive indicator of most inferential statistics and an important…

Q: What is the definition of continuous data?

A: It is given that the data is continuous.