How to do an ancova test using r codes to find relationship between two factors for example sun exposure and gender with continous variable age. Also compare the means if needed for factorial anova and add graph using r

Q: if X is a normal random variable with mean u = 3 and variance 62 = 16, find P(X >3), P(X>-1)

A: Mean=3, variance=16

Q: EN: The joint probability distribution of A and B is as follows: f(a, b) = (a + b)/30 Find the…

A:

Q: im trying to produce a relative distribution graph for the number of road accidents and the time of…

A: Since the variable on the x-axis is categorical/qualitative, hour ranges do not matter in the bar…

Q: Please do not give solution in image format thanku Velvetleaf is a particularly annoying weed in…

A:

Q: We wish to know if the computer flips "fair coins". a) First, determine the sample size necessary…

A: Given fair coins are flipped.

Q: 5318.3363134.qx3zqy7 Jump to level 1 A clothing retailer is interested in the average waist size of…

A: The question is about confidence intervalFrom given results of sample :Mean = 41.39Std. error =…

Q: Sample median is an unbiased estimator. False O True

A: One of the measures of central tendency is the median.

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: n=1004x=511and c=0.99

Q: A random sample of 25 women resulted in systolic blood pressure levels with a mean of 109 and a…

A:

Q: A data set about speed dating includes "like" ratings of male dates made by the female dates. The…

A: Sample  size(n)=192Sample mean()=5.58Sample standard deviation(s)=2.03and =0.05

Q: Determine whether each pair of actions results in independent or dependent events. Toss a coin. Then…

A: The question is about events and prob.Introduction :Independ. events :The outcome of one event is…

Q: What should we do when we have (imperfect) multicollinearity? Drop some of the independent…

A: This question addresses the issue of multicollinearity, specifically the presence of imperfect…

Q: Assume that females have pulse rates that are normally distributed with a mean of 74 beats per min…

A:

Q: We want to test whether the response time for the police during an emergency in Australia meets the…

A: Sample size, Sample mean, Population sd,

Q: Given the table below, find the 5 number summary. table of x values 6.1 7.9 8.8 10.5 20.4 20.8 27.5…

A: A set of descriptive statistics that provides a concise summary of a dataset's distribution is…

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: n = 1004x = 51199% ci for p(a) best point estimate for p = ? (b) margin of error n: E = ?

Q: Aspen Plastics produces plastic bottles to customer order. The quality inspector randomly selects…

A: The process capability index is the minimum specification limit. The centre value of the…

Q: Complete the following probability table. (Round Prior Probability and Posterior Probability answers…

A: The prior probability, The conditional probabilities are: and

Q: b) Use the cumulative relative frequency plot from part (a) to answer the following questions.…

A: The data for cumulative frequency is given as- Year survived Frequency0 to < 20.12 to< 40.524…

Q: The data represent the time, in minutes, spent reading a political blog in a day. Construct a…

A: 7,0,15,19,15,12,6,14,13,11,15,3,13,15,8,6,3,6,8,9sample size(n)=20

Q: a. Verify that the function given is a valid probability density function. b. Determine the…

A: According to the Bartleby guidelines expert solve only one question and maximum three subpart of the…

Q: A password for a website must have 4 different digits. How many unique passwords are possible if…

A: The no. of available digits to form passwords are 0,1, 2, 3, 4, 5, 6, 7, 8, and 9.The no. of digits…

Q: You roll a standard number cube. Find P(number is not 3). O a Ob Oc Od 2/3 -167/25/6

A: A measure of the likelihood or chance of an event (here, getting a number which is not 3 on rolling…

Q: Consider the model below: E-Bo+BY+B₂Ar+811 At = 80 +81E + £21 I Where E₁, Y, and A denote the level…

A: In the given model, the endogenous variables are government expenditure (Et) and foreign aid (At),…

Q: Given this table, find the probability of x les 0 1 2 P(x) 0.50 0.25 0.25 X 0.75 0.25 1 0 0.50

A: Pmf of X isx012P(x)0.500.250.25

Q: Other Senior Screen Time, AJ's Screen Time and Difference (AJ-Others) 150 100 50 -50 12 Other Senior…

A: The graphs are used to visualize the nature of the given dataset using the pattern that is obtained…

Q: Identify the null hypothesis, alternative hypothesis, test statistic, p-value(s), conclusion about…

A: The question is about hypo. testingGiven :No. of babies born using given method ( n ) = 325No. of…

Q: Use a stem-and-leaf plot to display the data, which represent the numbers of hours 24 nurses work…

A: To draw a stem and leaf diagram, we note each of the observed values and divide each such value into…

Q: Assume that the probability of a being born with Genetic Condition B is �=19/30. A study looks at a…

A: probability of a being born with Genetic Condition B (p)=sample size(n)=970

Q: Suppose that (X, Y) have a standard Gaussian distribution on R2. Find the expected value E [max(2.1X…

A: has a standard Gaussian distribution on .

Q: Let a be a random variable that represents hemoglobin count (HC) in grams per 100 milliliters of…

A: 16,18,17,19,14,12,17,17,16,12 sample…

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

A: Marketing managersMarketing ResearchAdvertising95108511741084995107410

Q: What percent of the data is below 130?  What percent of the data is above 150.8?  What percent of…

A: Given that,To find the following percentages.

Q: i. var (VSRSWOR): = N-125² Nn

A: We need to show that:-

Q: A survey of students was conducted to study the relationship between the types of housing a student…

A: The question is about conditional prob.Given :To find :Prob. that the student lives in a dorm given…

Q: According to a recent survey of 1300 people, 5416 feel that the president is doing an acceptable…

A: The question is about confidence intervalGiven :Randomly selected no. of people under survey ( n ) =…

Q: IRSC INDIAN RIVER xP(x) 0.274 0.177 0.161 0.161 0.13 5 0.065 6 0.032 ATE COLLEGED Help…

A: The probability density function of X is given as-XP(X=x)00.27410.17720.16130.16140.1350.06560.032

Q: The regression equation relating dexterity scores (x) and productivity scores (y) for the employees…

A: Answer:- Given, The regression equation relating dexterity scores (x) and productivity scores (y)…

Q: Salaries of Governors Here are the salaries (in dollars) of the governors of 21 randomly selected…

A: 112895,117312,140533,110000,115331,95000,177500,120303,139590,150000,173987,130000,…

Q: deprivation by the Centers for Disease Control and Prevention, the proportion of California…

A:

Q: What is the P-value for this hypothesis test

A: The test statistic is 2.60.

Q: What is the most appropriate hypothesis test for this scenario?

A: We want to test whether the population variance of machine component mass meets the requirement of…

Q: What are the characteristics of a Normal distribution? Group of answer choices right skewed left…

A: The question is about normal dist.Introduction :If X is continuous r.v with mean  and std. deviation…

Q: Q1 Create a scatter diagram for the two variables and display regression equation and coefficient of…

A: Consider the given Information:Average Annual SalaryStress…

Q: Five males with an X-linked genetic disorder have one child each. The random variable x is the…

A: xP(x)00.02910.15220.31930.31940.15250.029

Q: 1. Look for the 2020 population pyramid of the Philippines. Describe the a. age composition b. Sex…

A: The pop. pyramid shows the breakdown of age and gender at a given point in time.

Q: Please answer number 2. Make sure to show work, answer quickly! Thx!

A: 2.One of the measures of central tendency is the mean.

Q: The test statistic of z = 2.61 is obtained when testing the claim that p = 0.709. a. Identify the…

A: The question is about hypo. testingGiven :Claim : p ≠ 0.709z test stat = 2.61Level of signif. (  ) =…

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

A: xyx- x̄ y- ȳ(x- x̄ )2(y- ȳ )2(x- x̄ )(y-…

Q: Compute the absolute value of the test statistic. (Round your answer to nearest hundredth. Hint: The…

A: Let  be the population mean the difference between the two measurements.Given that,