Find the mean and median to revenue
Q: during what year were mean and median same value
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Q: What is Average, median and range?
A: Explaining the average, median and range
Q: What is the difference between finding the Mean and Range?
A: Introduction:The mean is a measure of central tendency, whereas the range is a measure of…
Q: A basketball measured the heights of his players and found them to be: 173cm, 177 cm, 185cm, 183cm,…
A:
Q: If there were drivers who drove 80 or 85 mph would the mean stay the same or get higher or lower?
A: The given frequency table is shown below: x f 85 2 80 3 75 15 70 20 65 50 60 45 55…
Q: Mean: Median: Mode:
A: Sample data of weight : X 12 9 8 10 10 11 10 11 9 12 7 11 10 13 8 9 n=16
Q: Write down the steps for finding the median?
A: Median: The median is the middle-most observation in an ordered (in an ascending or descending…
Q: Find the median of the data set. {5, 0, -1, 5, 2, 3, 7, 2} O 5 O 2.5 O 2 O 3.5
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Q: The monthly rents for five apartments advertised in a newspaper were $650, $650, $760, $1550, and…
A: mean Median
Q: Find the median of the following data: 1, 6, 12, 19, 5, 0, 6 A. 6 B. 7 C. 19 D. 3.5
A: Consider the provided data; 1, 6, 12, 19, 5, 0, 6. We have to find the median of the given data.…
Q: Find the median of 19, 29, 36, and 20.
A: Given data is19,29,36,20
Q: Find the mean, variance, standard deviation, zscore of each variable.
A:
Q: Find the mean of the following data * ,1,0,1,2,3,4- ,2- ,3-
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Q: Find the median of the data: 5, 7, 4, 9, 5, 4, 4, 3 A. 5.125
A: According to the provided information, the data set are 5, 7, 4, 9, 5, 4, 4, 3 Median: The median is…
Q: Find the mean median and mode
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Q: choose a two digits number of your own choice and calculate the mean, median and mode.
A: Data: 11,13,15,19,21,20,20,20,13
Q: Find out the median of the following items : 10, 8,.5, 13, 4, 9, 7
A: Median: It is the middle most value of the data set that divides the whole data into two equal parts…
Q: How do you find the mean and median from a frequency chart ?
A: Frequency chart is the representation of frequency of various outcomes in a sample. ** Frequency…
Q: Find the mean of the data set: 14, 19, 13, 22, 7
A: Given data is : 14, 19, 13, 22, 7 Number of terms is n=5 To find the mean.
Q: If exactly one number in a set of data is changed, will this necessarily change the mean of the set?…
A: For Mean: - We know that the mean is computed by using the sum of all the data points. If one of the…
Q: Determine the median number of hours Darla spent studying that week. Gi-
A: Median is the value which divides the whole data into two equal halves.
Q: Find the mean median mode
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Q: What is the median? (Round off to one decimal place if necessary)
A: Calculate Median from the following data1,2,2,3,3,4,4,5,6,6,7,7,7,7,8,8,8,9,9,10 for even number of…
Q: Determine the: a. Range b. Mean c. Median
A: As per our guidelines, we are allowed to answer first three sub-parts. Thanks a) The data in…
Q: From the stem and leaf plot below, determine the median
A: In the stem and leaf plot, the left side column is called the stem and the right side column is…
Q: Stem Leaf 2446 2 7 3 19 4 7.
A: Given data are appropriate for measures of central tendency. Concentration of all values around the…
Q: Mean, median, mode comparison
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Q: How to calculate the median of a data
A: The median can be defined as the middle value of the data set or distribution. The median for the…
Q: How to find the Mean, Median, and Mode for this specific table? Table is Ordinal.
A: For ordinal data mean cannot be found as it require an arithmetic operation like addition and…
Q: A local travel office has 10 employees. Their monthly salaries are given below. $1520, $1730, $1690,…
A:
Q: For the frequency distribution table below, find the median *
A: Median is the middle most value of arranged data. For frequency distribution the median is defined…
Q: Find the mean, median and mode
A: To compute mean, median and mode for the given frequency distribution the calculations are given in…
Q: Find the median of the following data: 9, 6, 12, 5, 17, 3, 9, 5, 10, 2, 8, 7 A. 6.5 B. 7.5 C. 6 D.…
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Q: Find the mean, median, mode, and midrange for the data. Comment
A: Here given data of earnings of nonliving celebrities
Q: Find the median value
A: Given information: The probability density function of a random variable X is as given below:
Q: How do the median number of video games owned compare for boys and girls?
A: We have to find median number of video games owned compare for boys and girls.
Q: The number of text messages that Isaac received each day for a week is shown: 47, 49, 54, 50, 48,…
A: See the attachment
Q: During which year were the mean and median the same value?
A: Given,
Q: Find the mean, median, mode, and also state which is the best represents the data of the following…
A: We have given that The data are 11,20,14,41,34,25,14,15,28,33,24,40,34,42,33,34,11,14,22,24,25…
Q: A sample of students involved in laboratory accidents was categorized by age. The results appear as:…
A:
Q: a) mean b) median c) midrange
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Find the mean, median, and mode.
A: This is based on mean, median, mode of grouped data
Q: What is the median? 0 10 20 50
A: Solution: The given data is 0, 10, 20 and 50.
Q: Find the median for the following variables 18,2,9,12,18,18,23,26,33,4,18,18
A: Median: It represents the middle value for any given data set and is also represented as the 50th…
Q: Find the mean median mode for number A
A: Given line plot is The data from the plot is…
Q: what is mean, median and mode
A: Solution Mean: The mean (average) of a data set is found by adding all numbers in the data set and…
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Find the
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- 7. The manufacturer of an Engine Energizer System (EES) claims that it improves gas mileage and reduces emissions in automobiles by using magnetic-free energy to increase the amount of oxygen in the fuel for greater combustion efficiency. Following are test results, performed under international and U.S. government agency standards, on a random sample of 14 vehicles. The data (also see file M09_Gas_Paired.txt or M09_Gas_Q7.xlsx) give the carbon monoxide (CO) levels, in parts per million, of each vehicle tested, both before installation of EES and after installation. (a)Test at the 1% significance level whether, on average, EES reduces CO emissions (b)Obtain a 99% confidence interval for the difference between the mean CO emissions before and after installation of EES corresponding to the test in part (a) (c)Interpret the confidence interval obtained in part (b). Does this interval support the conclusion of the hypothesis test in part (a)? Justify your answerThe average drying time of a manufacturer’s paint is 20 minutes. Investigating the effectiveness of a modifica-tion in the chemical composition of her paint, the manu-facturer wants to test the null hypothesis μ = 20 minutes against a suitable alternative, where μ is the average dry-ing time of the modified paint. (a) What alternative hypothesis should the manufactureruse if she does not want to make the modification in thechemical composition of the paint unless it decreases thedrying time?(b) What alternative hypothesis should the manufactureruse if the new process is actually cheaper and she wants tomake the modification unless it increases the drying timeof the paint?A certain medicine company wants to determine that if a drug has the undesirable side effect of reducing the blood pressure of the patient. The research involves recording the initial blood pressure 12 certain aged patients. Then, these patients took the druh by the advise of the doctors and at the end of their useahe, the blood pressures of them again recorded. The company would like to draw inferences about the effect of the drug on the blood pressure based on the following data: Patients Blood Pressure 1 2 3 4 5 6 7 8 9 10 11 12 Before usage (x) 77 72 80 64 70 76 72 82 78 74 74 76 After uesage (y) 70 62 72 72 68 66 68 74 52 74 74 58 a) Calculate a 90% CI for the mean reduction in blood pressure. Round your answer to 1 decimal point. b) Do the data provide significant evidence toward the claim on the use of the drug reduces blood pressure? Test at = 0.10. We accept Ho We do not accept Ho
- Mechanical engineer Kwok Wai Tham of the National University of Singapore set out to sample how much virus COVID-19 patients produce when they breathe, talk or sing, in part, to address skeptics’ concerns. “I’m doing this to convince some very close friends,” he says. He and colleagues rolled a mobile lab into 22 patients’ rooms and had volunteers stick their heads into a large metal cone. The researchers collected both aerosols and larger droplets that the patients exhaled while breathing quietly for 30 minutes, while repeating passages from Dr. Seuss’ Green Eggs and Ham for 15 minutes, or while singing simple tunes like the “Happy Birthday” song, “Twinkle, Twinkle Little Star” or the “ABCs” for 15 minutes. The scientists tested both aerosols and large droplets in the air samples for coronavirus RNA and calculated how many copies of the virus’s nucleocapsid protein gene, or N gene, were present. That gives an estimate of how much virus is in a sample.Of the 22 patients who sang for…Wertheretal et al. examined the β-leucocyte count (/ L) in 51subjects with colorectal cancer and 19 healthy controls. The cancer patients were also classified into Dukes’s classification (A,B,C) for colorectal cancer that gives doctors a guide to the risk, following surgery, of cancer coming back or spreading to other parts of the body. An additional category (D) identified patients with disease that had not been completely resected. The results are displayed in the following table. Perform an analysis of these data in which you identify the sources of variability and specify the degrees of freedom for each. Do these data provide sufficient evidence to indicate that, on average, leucocyte counts differ among the five categories? Let α=0.01 . Write the null and alternative hypotheses of this study. Test the claim using the ANOVA Table. If you reject the null hypothesis, interpret your results using multiple comparison test Bonferroni. What assumptions must be made in part (b)? Are they…A researcher was interested in studying if there is a significant relationship between the severityof COVID 19 and blood types of individuals. 2400 individuals were studied and the results areshown below.Condition Blood TypeO A B AB TotalCritical 64 44 20 8 136Severe 175 129 50 15 369Moderate 211 528 151 125 1015Mild 200 400 140 140 880Total 650 1101 361 288 2400a. State both the null and alternative hypotheses. DONEb. Provide the decision rule for making this decision. Use an alpha level of 5%. DONEc. Show all of the work necessary to calculate the appropriate statistic. DONEd. What conclusion are you allowed to draw? DONEe. Would your conclusion change at the 10% level of significance? DONE... I need help with using JASP. pLEASE show me how to input the data f. Confirm test results in part (c) using JASP.
- A researcher wants to know why individuals in Community A have a higher rate of a rare form of cancer when compared to those living in Community B. To find out the reasons for the differences in cancer rates in these two communities, the investigator surveyed residents about their lifestyle, noted the types of businesses that were present in the community and searched medical records. The researcher found that the headquarters for the Toxico Chemical Plant is located in Community A, there is a higher rate of cigarette smoking in this community and residents tended to delay or skip going to the doctor for an annual checkup. In Community B, the largest employer was a department store and on average, residents did not smoke as much as residents from Community A. However, like individuals from Community A, Community B residents tended to delay or skip their annual checkup with their doctor. 1. What makes this a descriptive study?Suppose the average blood sugar level in 35- to 44-year-olds is 4.86 (mmol/L). Do sedentary people have a different blood sugar level than that of the general population? To answer that question, a hypothesis test is planned to collect data from a group of 200 sedentary people in this age group. State the null and alternative hypothesis for this study. A. H0: u (mean) ≠ 4.86 mmol/L vs Ha: u (mean) = 4.86 mmol/L B. H0: u (mean) = 4.86 mmol/L vs Ha: xbar ≠ 4.86 mmol/L C. H0: u (mean) = 4.86 mmol/L vs Ha: u (mean) > 4.86 mmol/L D. H0: u(mean) = 4.86 mmol/L vs Ha: u (mean) ≠ 4.86 mmol/LA sociologist studying freshmen at a major university carried out a survey, asking (among other questions) how often students went out per week, how many hours they studied per day, and how many hours they slept at night. The sociologist decides to use his introductory sociology class to conduct the survey. If the survey is not representative of the freshmen at the university, the conclusions from the study are likely to be: on target. biased. overefficient. None of the answer options is correct.
- Fifty patients with high lipoprotein and thirty patients with low lipoprotein were observed. None of them had ischemic stroke initially. But after eight years, a total of 36 of them had ischemic stroke. Results are shown in the table below: see attached photo Compute for the relative risk in developing ischemic stroke in eight years among population with high lipoprotein versus patients with low lipoprotein. Source: Nave, A. H., & von Eckardstein, A. (2019). Is lipoprotein (a) a risk factor for ischemic stroke and venous thromboembolism?. Clinical research in cardiology supplements, 1-5 1.2 1.4 1.8 2.5When determining whether grounding accidents and hull failures result in different spillage (is there a difference between spills caused by grounding or hull failures) would I use a two tail t test to decide this?I need help with stats/2023, section 7.1, Determine whether the claim stated below represents the null hypothesis or the alternative hypothesis. If a hypothesis test is performed, how should you interpret a decision that (a) rejects the null hypothesis or (b) fails to reject the null hypothesis? A report claims that more than 74% of households in a specific county struggle to afford basic necessities. Does the claim represent the null hypothesis or the alternative hypothesis? Since the claim (1) ______________ (contains or does not contain) a statement of equality, it represents the (2) ________________ (null or alternative) hypothesis. (a) How should you interpret a decision that rejects the null hypothesis? There (3) ___________ (is or is not) enough evidence to (4)_____________ (reject or support) the claim that more than 74% of households in a county struggle to afford basic necessities. There (5) ____________ (is or is not) enough evidence to (6)…