Table 3 shows the relationship between the number of hour's student active in social media and the examination score they receive. Using a statistical model, develop a mathematical relationship between this two variables. Comment on the reliability of the relationship in estimating examination score.

Q: A retail store is considering adding a new product line to its inventory. The store wants to know…

A: Sample size, N = 125favourable cases, x=70Confidence level, cl = 0.90level of significance,  = 0.10

Q: Give an example of a study that would collect univariate and quantitative data.

A: Give an example of a study that would collect univariate and quantitative data.

Q: how are parameters and statistics related?

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

Q: The blue catfish (Ictalurus Furcatus) is the largest species of North Amercian catfish. The current…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: The top schools HCC students transfer to are below from highest to lowest.  This type of data is…

A: We have given the following statement

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: Explain why the minimum and maximum observations are added to the three quartiles to describe better…

A: Quartile: Quartiles are the values which divides the data into four equal parts. First quartile:…

Q: which is more meaningful in ranking academic performance quartiles or deciles

A: A data set's quartiles divide the data into four equal parts, each containing one-fourth of the data…

Q: Which is the null hypothesis? * There is a significant relationship between a person's age and their…

A: We have given that the data of two populations one of person’s age and other one is time spent for…

Q: How do I draw two straight lines for the appropriate data points and get the point of intersect?

A:

Q: Explain the two types of observation as used in statistics

A: There are two types of observations: 1) Qualitative observations 2) Quantitative observations

Q: You can calculate an average/mean of qualitative data. True or False

A: mean , median and measure of spread  can't be calculated for qualitative data, because no natural…

Q: How can data be compared?

A: Here, we have to describe the different ways by which data can be compared.

Q: Part of why cocaine is so dangerous is that it blocks dopamine receptors.  Researchers conducted an…

A: Consider the given dataset: Percent_dopamine_blocked rating cocaine high 74 6 40 2 34 1…

Q: The Pearson correlation between a driver’s age and the cost of car insurance is -.81.          i.…

A: Scatterplot is the plot of the pairs of observations where the independent variable plotted on…

Q: Why is the median less affected by skewed data than the mean?

A: Mean: The average values of the total observations. Median: The value that divided data set into two…

Q: Hey Siri was conducted in 20 counties to determine the percentage of teenagers who had use marijuana…

A: The objective of the question is to interpret the correlation coefficient of 0.966 between the…

Q: Please explain how you got the 9.36 z-score test statistic?

A: Z for difference of proportion is given by,  Z= p1-p2/(S.E.)  SE is standard error which is…

Q: A major company would like to assess the relationship between self confidence and sales levels in…

A: In this case, we will use correlation coefficient.

Q: The correlation between mean 2015 Mathematics SAT scores and mean 2015 Writing SAT scores for all 50…

A: Given information: For all 50 states and the District of Columbia, the correlation between the mean…

Q: explain the differences of parameter and a statistic

A: It is needed to state the difference of parameter and statistic.

Q: Using excel the median is 16.70 but when I calculate it manually it comes to 13.9. Why is excel…

A:

Q: What equation should be used in significance of the value found in scatter diagram of the data

A: A scatter plot is a graphic tool used to display the relationship between two quantitative…

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: The blue catfish (Ictalurus Furcatus) is the largest species of North Amercian catfish. The current…

A: claim : mean weight of the fish in the reservoir is greater than 40 pounds.  in symbol  claim : μ…

Q: Describe of two examples of data sets for each of the four levels of measurement. Justify your…

A:

Q: You can assess normality of data using

A:

Q: What is the 75th Percentile of a data set when the Inter Quartile Range (IQR) is 12.5 and the first…

A:

Q: What is one instance where you have seen correlation misinterpreted as causation?  Please describe.

A: In statistics many of the times correlation is misinterpreted as causation. This phenomenon is…

Q: Calculate your test statistic. Write the result below, and be sure to round your final answer to two…

A: Given that  Sample size n=50; Sample  mean ¯x=40.72  Sample standard   deviation s=5.0

Q: please show the work for the problems with an explanation versus just shwoing calculated data.

A: To check the relationship b/w age and miles on the car.

Q: In spss, what test can you do to compare the score of variables?

A: As per the question we have to compare the score of variables if we have 2 independent samples, we…