Above are data representing testosterone levels among a sample of 8 men attending a prostate cancer clinic. Knowing that the mean-5.5, what is the sample variance?

Q: What percent of cans will have a caffeine content greater than 35 mg?

A: Let X be the random variable of the caffeine content of a cola.Given that,Population mean

Q: A researcher collects data from 50 different individuals and wants to understand the correlation…

A: The objective of the question is to determine the degrees of freedom in a correlation analysis…

Q: A brand manager for a soft drink firm is doing competitive analysis on marketing communications…

A: Let A1, A2, A3, A4 be the events representing Television, Radio, Magazines ,Newspapers respectively,…

Q: What does a z-score tell you about a data value?

A: Solution: Let X be the random variable. The z-score is the standardized value of the given data.

Q: When a data set has one or two values that are much higher than all of the others which of our 3…

A: As Mean is found by adding all the values and dividing by the number of values So if one or two…

Q: Under what conditions would it be better to use the median instead of the mean?

A: n statistics, three measures of central tendency are widely used. These three measures are also…

Q: According to a study done in 2010, the mean number of sexual partners was 7.6. However, a…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: Explain the Formulas for a sample comparable to the ones for a population?

A: If the data includes all the possible values, then it is called population. Whereas, the sample 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: Is the Median a good way to represent the number of points scored per game for all the players?

A: Is the Median a good way to represent the number of points scored per game for all the players ?

Q: The summary data from study demonstrates a stronger relationship between how many minutes per day a…

A: Given : A standard deviation is a measure of how dispersed the data is in relation to the mean. Low…

Q: does question say to bring the sample donw by 1/2 or the mean down by 1/2

A: Given the question want to reduce the margin of error from slightly more than half an hour to…

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: A professor has recorded exam grades for 40 students in his​ class, but one of the grades is no…

A: From the provided information, Number of students = 40 The score on the exam was 82. The mean of the…

Q: Discuss the differences between an ANOVA and a correlation. Write as many differences as you can…

A: ANOVA: It stands for Analysis of Variation. It is a statistical measure used to compare more than…

Q: Based on the boxplot above, which one tends to be higher: median or the mean? Explain.

A: It is known that, for positively skewed distribution the mean of a set of observation is greater…

Q: A data set is described as consisting of n = 15 scores. Based on the notation being used, the data…

A: We have the following statement .

Q: Twelve professional gamers were asked their age (in years) when they first began playing their game…

A: Formula for sample mean is as follows,   x¯ = Sum of all observations Total number of observations

Q: If you increase the sample size to 50 from 30, will the standard error of the mean be smaller or…

A: When increasing the sample size to 50 from 30, the standard error of the mean would be smaller…

Q: hat is the median

A: we can create a frequency distribution from the given data x f cf 5 1 1 30 5 1+5 = 6 60 1…

Q: Baseball team A of n=7 scores has a mean = 8.  Baseball team B of n=3 scores has a mean = 12.  if…

A: From the provided information,

Q: How will a high outlier in a data set affect the mean and median?

A: There is the effect of an outlier on the median value.

Q: researcher collects data from 30 different individuals and wants to understand the correlation…

A: the sample size is n=30

Q: What is difference between the Differences between Mean and Median?

A: The measures of centre or measures of central tendency are those descriptive measures that give the…

Q: Describe when you would use an analysis of variance versus an independent samples t-test.

A: Analysis of variance (ANOVA) is used when we have more than two independent samples whereas…

Q: What does it mean when a score is in the tail of a distribution?

A: The distribution in statistics or probability is the shape in which the data behaves when plotted.…

Q: The entering SAT scores and high school GPA's of 100 first-year students and their grade point…

A: Given information: The investigator is specially interested to predict the college GPA for next…

Q: Which of the three measurements, mean, median, or mode, is the most influenced by an outlier value…

A: Outlier in a data set is the value which is much higher than or lower than almost all other values.…