Frequency Distribution - Both 50 40 30 20 10 140 – 154 155 – 169 170 – 184 185 – 199 200 – 214 Height (cm) Frequency (n)

Q: In the output from a classification tree, R gives a quantity called "loss". Which answer best…

A: Given that,In the output from a classification tree, R gives a quantity called "loss". The objective…

Q: How do you tell percentiles in a table

A: Percentile is a score that tells the value below which a given percentage of values falls in a table…

Q: •. Find the mean, median, and mode of 9,10,1,2,9,8,-3,9.

A: We have given that the value of some observations are X: 9,10,1,2,9,8,-3,9 Number of observation= 8…

Q: additionally how would you find the: test statistic & p-value

A: The claim is that mean lead concentration is less than 19 μg/g Null hypothesis: H0 : µ=9 μg/g…

Q: You are interested in whether level of education influences a person's exposure to the media. You…

A: Introduction: It is required to find the mean, median, mode for the independent variable.

Q: how to find the mean, median and mode -20, 15, 21, -20, 19

A: Mean:The sum of all data in the data set divided by the number of observations gives the value of…

Q: A quantitative data set has 22 observations  when arranged in descending order what is the value of…

A: The quantitative data set has 22 observations.

Q: The New York Jets lost their first 8 games of the 2020 NFL season. In those games, they scored the…

A: The data set :-X :- 17, 13, 7, 28, 10, 0, 10, 9

Q: the variance of a data set is 144 and mean is 72 then coefficient of variance is

A: Given,variance(σ2)=144mean(x¯)=72

Q: Help with F- Statistic and P-Value please!

A: The mean for sample means is, The sum of square for treatments is, The sum of square for error is,…

Q: How can data be compared?

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

Q: How do you find the average, spread, and outliers for quantitative data set?

A: The most frequently used measure to find average for quantitative data set is mean, median and mode.…

Q: What information can you get from a histogram that you can't get from just knowing the mean or…

A:

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: Why are t statistics more variable than z -scores?

A: t-statistics uses sample variance instead of population variance.   t statistics has both s and x̅.

Q: Describe the four cases of the Leading Coefficient Test.

A: Let given polynomial function is fx=anxn+an-1xn-1+an-2xn-2+......+a2x+a1x+a0 The graph of given…

Q: Can anyone please send me the normal standard table

A:

Q: Describe about the CHOOSING A LEVEL OF SIGNIFICANCE.

A:

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

A:

Q: How do you find mean median and mode

A:

Q: Explain about two-tailed p-values.

A: Two tailed test: In two tailed test, the rejection lies in both sides. That is less than or greater…

Q: explain what is measured by the sign of a z -score and what is measured by its numerical

A: here use basic of standard normal random variable z -score

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…

Q: Joselyn hopes to receive a grade of B or better in her statistics class. Currently she has scored…

A: Mean= sum of total obervation/ total no. Of observation

Q: Using the line of best fit, which equation most closely represents the set of data?   { (-5, 8.2),…

A: First we will mark those points in a plane then draw the line of best fit. Then we will find its…

Q: Explain about the Mean Difference Score.

A:

Q: What are the Four Steps to use when working with the t-test ?

A: The Four Steps to use when working with the t-test with p-value approach is given below: Step 1:…

Q: Explain what a positive bias and a negative bias mean in relation to the mean, mod

A: Bias: In skewed(biased) distributions, most of the values falls on one side of the distribution and…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.