We are interested in assessing the number of ropes a person can jump rope. We have a random sample of 40 people and find that the average person can jump rope 16.4 times with a standard deviation of 3.8. What is the 90% confidence interval for the actual average number of ropes a person can jump? Enter your answers accurate to one decimal place. ( Can we conclude that the actual average number of ropes a person can jump is at most 17.1? O Yes O No O Not enough information to determine this

Q: how are parameters and statistics related?

A: Parameter: The parameter is used to explain the entire population. For example, a teacher calculated…

Q: A very good professional baseball player gets a hit about 35% of the time over an entire season.…

A: Solution:- The commentator is wrong because the law of averages does not apply in this situation.…

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: React on the statement, “Correlation deals with association but not causality”

A: From the given information, Correlation coefficient is the measure of linear relationship between…

Q: What is the definition of statistics? Why it is important to learn statistics? Give two major areas…

A: Statistics- Statistics is a subject as a branch of mathematics that is based on describing,…

Q: Why should I learn statistics?

A: Statistics helps us to describe and organize data. It also helps us to make inferences from data.

Q: How can I create a histogram when the only data I have is the percentage of 16 year olds who used…

A: To construct the histogram, the first thing is to determine the number of class intervals. There is…

Q: single term that best describes statistics and why?

A: A statistic is the measure of an attribute computed from a sample. The statistics calculated from…

Q: Can one "trust"

A: Statistics is the study of collecting , analyzing and interpretation of the data.

Q: What is an example of the use of statistics to make predictions and decisions in our daily lives?

A: Probability & Statistics can be used in our daily life in many activities like online shopping.

Q: initial ideas about Correlation

A: Correlation refers to the relationship between two variables.

Q: What should I learn statistics?

A: Given problem Given that   What should I learn statistics?

Q: Distinguish briefly the Parameters and statistics

A: A parameters is a values that describes some aspect of a population . A parameters may be very…

Q: An over-the-counter drug manufacturer wants to examine the effectiveness of a new drug in curing an…

A: the regression model:the coefficients from the model:

Q: We heard that the mean marks of statistics of 100 students of a class of economics majors were 72.…

A:

Q: How would I do this step by step in Excel?

A: It is given that the z-scores are -2.165 and -1.35.

Q: This is statistics concepts and controversies please help just trying to learn ?

A: Note: Hey there! Thank you for the question. As you have posted several sub-parts of a question,…

Q: What is statistics, how do you think statistics can be helpful in ours lives. Think of an area of…

A: Statistics is a science which deals with the collection, classification, presentation, comparison…

Q: How is statistics used in information systems?

A: statistics is used for data mining ,speech recognition ,vision and image analysis ,data compression…

Q: ?

A: Statistic is similar to mathematics but it can be applied in practical situations. Example, if there…

Q: could you please tell me why explain in simple terms why the power of a test matters to the users of…

A: Why power test is matters in statistics?  Having  enough statistical  power is necessary  to draw…

Q: what are the real-life implications of statistics in businesses? give 3 examples

A: The statistics used in all the departments of business activity like sales, purchase, production,…

Q: What are the real-life applications of Statistics in Business and Economics? Briefly explain at…

A: In many real life situation statistics is very useful in business and economics.

Q: What is the goal of statistics?

A: The main purpose of statistics is to understand the data deeply.

Q: Explain the difference between “bias”, “error”, and “precision”. Be sure your definition explains…

A: Given information: Bias, error, and Precision

Q: We use Bar Chartsfor data measured on a continous scale and Histograms for data measured on a…

A: 1) False Bar Charts are used to represent discrete data. They are used to represent the Nominal or…

Q: Please briefly explain history of  order statistics?

A: We have to explain the history of the order statistics

Q: For the data set 8 7 4 8 6 8 5 9 12 6 5 7 3 7 24 65 4 17 10 5 4 Send data to Excel

A: Given data is8,7,4,8,6,8,5,9,12,6,5,7,3,7,24,6,5,4,17,10,5,4Arrange the data in ascending…

Q: explain the concept of positive correlation

A: Correlation refers to the relationship between between two variables. It can be positive or…

Q: Grade 6 and Grade 8 students were asked how long it takes them to get to school in the morning. The…

A: The measure of the centre is calculated using the observations such as mean, median and mode. The…

Q: Is theory essential to the research process and statistics? Please Explain.

A: Introduction about Theory: Theory can be defined as the idea or concept that has no proof. It could…

Q: Write Two Quantitative Paragraphs about Statistics!

A: Statistics is a field which involves collection, arrangement and analysis of the data to draw…

Q: An understanding of statistics is necessary in any job. The use of statistics can help provide…

A: An understanding of statistics is necessary in any job. The use of statistics can help provide…

Q: why is it  important for students to know something about statistics as applied to psychology?

A: Yes it is important for students to know something about statistics as applied to psychology…

Q: What are the difference of descriptive from inferential statistics and example of an application for…

A: Statistics : Statistics is that the branch of arithmetic involved with the creation and study of…

Q: A researcher conducts a study comparing anxiety levels in teens based on their social media usage.…

A: Given information: The data represents the descriptive and inferential statistics of anxiety scores…

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

A: Does data have to always be numerical in statistics

Q: For item 4 to 6. Table 3.8 shows the heights of a sample of 12 fathers and their oldest adult sons.…

A: Given data: Height of father (X) Height of son (Y) 65 68 63 66 67 68 64 65 68 69 62…

Q: we can conclude from correlation calculation that one variable caused the other variable. True or…

A: Correlation between two variables measure the strength and direction between two variables. It…