The data represents the amount of money students. This is a random (Rands, R) spent on extra-curricular activities for University sample for the 8th week of first trimester. 8,1 3,25 9 9,9 17,5 10,05 27,43 16,01 12,87 6,29 14,59 8,31 6,5 13,8 9,87 19,25 5,74 4,95 9,5 7,14 10,41 12,8 32,09 6,74 11,38 17,95 14,73 8,59 6,5 20,35 8,84 13,45 18,75 24,1 18,24 11,79 6,48 12,93 7,25 13,02 16,91 9,65 22,68 12,45 Note 1: As a researcher, and for a better statistical measurement in reflection of the conventional steps to determining the frequency distribution table, you decide to reduce the lowest data observation by 1.25 and increases the highest by 1,91. This to observe a comprehensible data Range. 7,25 13,57 1.6. What would be your frequency percentage in your 5th interval if you were to plot your frequency distribution table? 6,63 15,9 4,32 9,18

Q: Test if there is a correlation between ice cream consumed and murders at the 5% level.    Ice Cream…

A: Solution: State the hypotheses. Null hypothesis: There is no correlation between ice cream consumed…

Q: Last year, nine employees of a shipping company retired. Their ages at retirement are listed below.…

A: I hope this is helpful.

Q: Calculate the coefficient of variation for products sold per store using this sample data 0, 77, 38,…

A: From the provided information, The data values are as follow: 0, 77, 38, -5, 44, 62

Q: What is the variance of a set of 6 numbers: 1, 2, 3, 4, 5, 6?

A: The variance is calculated as the average of the squared differences of each number from the mean.

Q: La Suppose the midterm grades for 10 students are the following: 70, 65, 75, 80, 63, 90, 71, 75, 93,…

A: Hi there! Thanks for posting the question. Since there are multiple subparts in each question we…

Q: 11, 13, 8, 12, 3, 7 of 3: Calculate the value of the sample variance. Round your answer to one…

A: The question is about measures.Given :To find :Value of sample variance

Q: How many ways are there to rearrange the letters in the word STATISTICS?

A: We have given the word STATISTICS We have to find a number of ways are there to rearrange the…

Q: Find the midrange for the given sample data. Listed below are the amounts of weight change (in…

A: Midrange = (Maximum + Minimum) /2

Q: The high temperature, in ∘C, on the first day of winter was recorded in a certain city every year…

A: Given data is,4,12,6,9,6,11sample size(n)=6

Q: A teacher at a school obtains a sample of students by selecting a random sample of 20 students from…

A:

Q: find variance of data sample size n = 8   52,56,57,50,59,60,61,59

A:

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: The property manager for an apartment building wants to see which pizza delivery company delivers to…

A: Sampling is a technique which is used to take the sample from the population. Sampling has broadly…

Q: What is Sample?

A:

Q: find sample variance  for given data 12,15,4,69,85,63,34,75,62,69,56,52,85

A:

Q: 2b What happens to the variance of a set of scores if (a) A constant a is added to each score in the…

A: (a) Variance measures how far the data values are from the mean. One of the property of the variance…

Q: How do the sample mean and the population mean differ? What is the symbol for each type of mean?

A: Here we have to define  How do the sample mean and the population mean differ? and  What is the…

Q: how do you find the simple random sample of 15 restaurants?

A: In simple random sampling each member of the population has an equal chance of being included in the…

Q: find the median, 1 st quartile anf 3rd quartile for following sample data set…

A:

Q: 15, 24,26,25,1,22,25,25,21,23Is the data set symmetrical positive or negative skew

A: The given data set is 15, 24,26,25,1,22,25,25,21,23

Q: How can I find the sample mean of these four scores ? 1,4,4,10

A: Given data, 1,4,4,10 sample mean(x)=?

Q: Calculate the z score for sales per store x = 45 sales. Use this sample data. 74, 49, 4, 33, 82, 76

A: The provided samples are 74,49,4,33,82,76Σx=318Σx2=21482n=6The mean is µ=Σxn=3186=53standard…

Q: A hydrologist is interested in studying the influence of rainfall on runoff in a drainage basin.…

A: Test is to determine the influence of rainfall on runoff in a drainage basin. Note : Since you have…

Q: How do I find a sample with data values of 27, 25, 20, 15, 30, 33, 28, and 25. Compute the 20th,…

A:

Q: The midterm and final exam grades for a statistics course are provided in the data set below.…

A: Solution: We are given the z-scores for midterm and final exam. These are:z-score for midterm:…

Q: Determine whether each sample is a random sample or a biased sample. Explain. 1. Carlos chooses 50…

A: Given that Carlos chooses 50 movies at random from a list of all his movies.  Since he picked them…

Q: It is not important to collect samples randomly. True or false

A: Any sample must be collected using the random techniques. If the samples are not collected randomly…

Q: Two samples are randomly selected from a population. One sample has n = 5 and the second has n = 30.…

A: In this case, there are two samples. One sample has size of n = 5 and another has size of n = 30.