Assessment 2 Directions: 1. Using the information you gathered for Assessment 1, calculate the measures of central tendency for the grouped data and the measures of dispersion for the grouped and ungrouped data. 2. After computing the measures of central tendency and dispersion, interpret the results.

Q: While constructing a frequency table for a variable, you notice that the relative frequencies for…

A: relative frequencies for each of the variable values are approximately the same

Q: In a class of 30 statistics students, 9 students received an A. What fraction of the class received…

A: Total no. of statistics students=30No. of students received an A=9

Q: 17) The mean height of twenty-three 5-year-old children is 100 cm and the standard deviation is 6…

A: The sample size is 23, the sample mean is 100 and the sample standard deviation is 6.

Q: A group of people were asked if life exists elsewhere in the galaxy. 298 responded "Yes", and 359…

A: A group of people were asked if life exists elsewhere in the galaxy. 298 responded "Yes" and 359…

Q: You want to see how amount of rainfall, temperature, and amount of sunlight affects crop growth. An…

A: We need to perform the multiple…

Q: Heights of women are normally distributed with mean 63.7 inches and standard deviation 2.47 inches.…

A: A continuous probability distribution that is symmetric and bell-shaped is termed a 'Normal…

Q: Archie is fed up with waiting in line at his local post office and decides to take action. Over the…

A: 29,8,23,6,7,15,30,5,24,13,28,28,10,12,18,8sample size(n)=16Arrange the data in ascending…

Q: e ages of a group of 122 randomly selected adult females have a standard deviation of 18.1 years.…

A: standard deviation()=18.1Margin of error(E)=0.5confidence level=90%

Q: Susan takes a test and calculates her z-score on the test. She obtained a z-score of 1.22. Assuming…

A: Susan obtained z-score of 1.22 we have to find the percentage of individuals a test score higher…

Q: We determined the sum of the squared deviations to be Σ(x − x)2 = 21,912.1, and there are n = 10…

A: The sum of the squared deviations is=21912.1n=10

Q: Using a 0.01 level of significance, test the claim that the diet is not effective in reducing weight…

A: Let  be the population mean difference between before and after measurement.The data is given on the…

Q: List a detailed step by step guide you would take to determine if your data is statistically…

A: In statistical analysis, it is crucial to determine the statistical significance of data to make…

Q: In the last few years, a number of web-based companies that offer job-placement services have been…

A: The data table provided in the question is as follows :-…

Q: f(x,y)=x+y , 0X, X=x] (b) P[X<Y] (c) E[X<Y|Y=y] Please solve in detail.

A:

Q: Two-Sample t-Test and Confidence Interval The following data show the results of two random samples…

A: The following data show the results of two random samples that measured the average number of…

Q: Benford's Law states the probability distribution (below) of the first significant digit in a…

A: The following table shows the digits along with their probabilities under Benford's Law, their…

Q: 8) Verification of a hypothesis of equality of the mathematical expectation of two random quantities…

A: As per guidelines of the Bartleby I will solve only Question 8 and the remaining will follow…

Q: The brain volumes ​(cm3​) of 20 brains have a mean of 1139.4 cm3 and a standard deviation of 125.3…

A: The question is about range rule of thumbGiven :Mean brain volume of 20 brains ( ) = 1139.4 cm3Std.…

Q: K The English department has the faculty to offer 12 sections in any combination of the three…

A: To apportion the sections using the Hamilton method,

Q: LEMS 1. Statistical Literacy Consider the mode, median, and mean. Which average represents the…

A: The question is about measuresQuestion 1 :Introduction :i ) A measure which express an entire data…

Q: Which model is the better predictor based on the

A: From the previous question,The MSE value for moving average method is 1.2346.The MSE value for…

Q: Height of students in statistics Fall 2004, Height in Inches 63 62 70 74 68 62 67 70 72 65 69 73 60…

A: 63, 62, 73, 69, 70, 72, 64, 62, 67, 60, 67, 64, 60, 67, 70, 70, 65, 65, 63, 67, 65, 74, 72, 69, 62,…

Q: A person is said to have hypertension stage 1 if their blood pressure is between 130 and 139. Find…

A: The question is about normal dist.Given :Popl. mean blood pressure (  ) = 120.8 mmHGPopl. std.…

Q: Defective components: A lot of 9 components contains 2 that are defective. Two components are drawn…

A: To find the probability of 2 events

Q: Using proper notation, write the null and alternative hypothesis statements.

A: Given that: k= 3 groups or treatments Each group has 7 observation n= 3*7= 21 Total observation…

Q: 1. A researcher finds out that the average number of new cases of COVID-19 in the Philippines per…

A:

Q: Lottery: Every day, Jorge buys a lottery ticket. Each ticket has a probability of 0.2 of winning a…

A: n=7, p=0.2X~Binomial(n=7, p=0.2)Let X be the number of winning prizes ticketsp be the probability of…

Q: (a) Find the probability of randomly selecting a household that has one or two televisions. The…

A:

Q: In the digital age of marketing, special care must be taken to ensure that programmatic ads appear…

A: Marketing managersMarketing ResearchAdvertising95108511741084995107410

Q: At a high school, 7 students volunteer for a committee. How many different 5-person committees can…

A: It is given that Number of objects = 7Chosen objects = 5

Q: Carlos and Devon both accepted new jobs at different companies. Carlos's starting salary is $36,000…

A: Carlos's starting salary is $36000Devon's starting salary is $33000Carlos's company offers…

Q: A teacher would like to determine if quiz scores improve after completion of a worksheet. The…

A: Null Hypothesis Alternative Hypothesis (claim)Significance level Sample data:…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 92 inches and a…

A: Mean()=92standard deviation()=0.5

Q: If 14 out of 25 people buy from Amanda, and 11 out of 25 buy from Mikey. How likely is it that…

A: The likelihood or chance of a specific event or outcome occurring is termed 'probability'. It is a…

Q: You wish to test the following claim (Ha) at a significance level of a = 0.10. Ho: μ = 87.1 H„ : μ <…

A: Significance level()=0.10The null and alternative hypothesis isH0:Ha:The sample data set…

Q: 2. The average internet speed per day of an internet service provider (ISP) is 4.91 Mbps with…

A: given that mean=4.91 MbpsStandard deviation=0.72 Mbps

Q: K represent the weights of various cars and their gas mileages. Complete parts (a) through (d). on…

A: The data is given as-CarsWeight(pound)Miles per GallonA317522B359018C300022D356520E258027

Q: A standard deviation value =1, means: Select one: A) All values are the same B) You cannot have a…

A: The standard deviation is defined as an average value of the squared difference between each of the…

Q: 2. The airline industry defines an on-time flight as one that arrives within 15 minutes of its…

A: It is given that:The total no. of flights is 1000.The no. of flights, which are on time is 700.The…

Q: The table summarizes results from 986 pedestrian deaths that were caused by automobile accidents.…

A: Solution-:We have given following table:Driver IntoxicatedPedestrian…

Q: Use subjective probability to estimate the probability of randomly selecting a subject who did not…

A: Given that,Did the subject actually lie?No (did not lie)Yes (did lie)TotalThe polygraph test…

Q: Coefficients Standard Error Intercept 0.72 0.9 0.12 -0.15 -0.15 cpi-1 cpi-2 cpi-3 cpi-4 0.21 0.13…

A: Given the estimated regression model output as

Q: Annual high temperatures in a certain location have been tracked for several years. Let X represent…

A: XYX.YX2526.95134.7525627.76166.5636729.07203.4949829.28234.2464932.39291.51811030.13011001134.71381.…

Q: Use Pitman’s formula to compute the MREE of the location parameter in the uniform family U(θ, 1 +θ)…

A: In the given problem, we are dealing with a random sample (X1, X2,..., Xn) where each Xi follows an…

Q: 2. Compute the mean and median. 3. Compute the first and third quartiles. 4. Compute the variance…

A: Given data set is about the number of times a sample of 20 families dined out last week .Ascending…

Q: Match each scatterplot shown below with one of the four specified correlations.

A: Here use basic of correlation coefficient. As higher the correlation data in scatter plot are more…

Q: The table shows data for bus arrivalsat one stop. By how much time can you expect a bus to be late?…

A: Consider the following table:Minutes Late (x)Number of days (f)xf0801772363412428515Total2538

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 25 of 260 treated subjects…

A: sample size(n)=260x=25significance level()=0.05sample proportion()=

Q: For customers who purchase communication devices, the events are: - A: that the device is…

A:

Q: The frequency table shows the number of pets owned by students in Mr. Jones' class. X (number of…

A: X(number of pets)F(frequency)615241322811204how many students are in Mr. Jones class?