Decide whether the random variable x is discrete or continuous. x represents the length of time it takes to get to work. ... Is the random variable x discrete or continuous? Choose the correct answer below. O Continuous O Discrete

Q: ) Construct a  99%  confidence interval for the mean age at which children first begin to combine…

A: n=68,x¯=16.42,s=9.49C.I = 99% = 0.99df = n - 1 = 68 - 1 = 67

Q: Source Factor B Factor A Interaction Error Total A = Sum of Squares 7.5 2) (use 2 decimal places) C…

A: It is needed to find the complete ANOVA table.

Q: The weights of four randomly and independently selected bags of potatoes labeled 20.0 pounds were…

A: From the provided information,Sample size (n) = 4Confidence level = 95%

Q: In an ANOVA setting, the choose your answer... sum of squares measures the variability of the…

A: In an Analysis of Variance (ANOVA) setting, there are typically two primary types of variability we…

Q: Students in a statistics class took their second test. The following are the scores they earned.…

A: The given information is about the scores.Let X denote the test scores.

Q: (If necessary, consult a list of formulas.) (a) The 40th percentile: (b) The 75th percentile: mg dL…

A: It is given that the data set196,228,244,198,242,257,252,232,213,240,222,235,230,225,211,203,206

Q: Suppose IQ scores were obtained for 20 randomly selected sets of siblings. The 20 pairs of…

A: The regression equation is .

Q: Forty randomly selected students were asked the number of pairs of sneakers they owned. Let X = the…

A: From the given informationlet X = the number of pairs of sneakers…

Q: In a small coffee shop, customers arrive at an average rate of 5 per hour, following a Poisson…

A: X~Pois(rate=5)

Q: Part 1 The table below shows the probability distribution of the random variable X. a. Find the mean…

A: a.It is needed to find the mean and standard deviation of the random variable X.

Q: there are 28 universities and 4 of them are in british columbia. Suppose universities are being…

A: Total no. of Universities(N)=28No. of universities in British Columbia(M)=4No. of universities are…

Q: Assume that matched pairs of data from a poll of Internet users who were asked if they make travel…

A:

Q: Determine the sample size required to estimate a population mean to within 8 units given that the…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: Compute the mean and standard deviation of the holding period returns on stocks.

A: Suppose your expectations regarding the stock price are as detailed in the table below.HPR = Holding…

Q: Let z be a standard normal random variable with mean ? = 0 and standard deviation ? = 1. Use Table 3…

A: Z has follows standard normal distribution with mean zero and standard deviation one.

Q: The increased number of small commuter planes in major airports has heightened concern over air…

A: It is given that, an eastern airport has a record of monthly average of nine misses on landing and…

Q: The annual per capita consumption of bottled water was 30.8 gallons. Assume that the per capita…

A:

Q: On average, 2 traffic accidents per month occur at a certain intersection. Complete parts (a)…

A: As per our guidelines we are supposed to answer only one question kindly post the remaining question…

Q: Given the following sample XPATH example query in PostgreSQL, what would be the result: SELECT…

A: To solve this query and understand the result, you need some basic knowledge of XML, XPath, and…

Q: The prior probabilities for events A₁, A₂, and A3 are P(A₂) = 0.20, P(A₂) = 0.50, and P(A3) = 0.30.…

A: LetA1,A2,and A3 are mutually exclusive events and their prior probabilities are given…

Q: A spinning wheel has 10 different dollar amounts on it ($1, $2, etc. up through $10). There is a .10…

A: Number of different dollar amounts on the spinning wheel = 10probability of landing on any one of…

Q: While walking around you see a carnival game! The game has a 1% chance of you winning $150, a 3%…

A: While walking around you see a carnival game! The game has a 1% chance of you winning $150, a 3%…

Q: An airport has 3 security lines, with each line capable of scanning 290 people per hour. People…

A: To calculate the probability that there are no people in the waiting line and the average length…

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 24 for the population…

A: standard deviation()=24Margin of error(E)=6confidence level=90%

Q: Seventy-one percent of adults want to live to age 100. You randomly select five adults and ask them…

A: n = 5 , p = 71% = 0.71 , q = 1 - p = 1 - 0.71 = 0.29X ~ Binomial(n = 5, p = 0.71)

Q: In 2018, Pennsylvania was one of 11 states that did not collect race data during traffic stops.…

A: n=8 no of complaints:275 ,67 , 35 , 1, 21 ,35 ,4,15To determine 90% CI we have

Q: The standard score for a two-tailed test is 2.0. What is the P-value? (Don't Hand writing in…

A: Given:The standard score for a two-tailed test is 2.0.

Q: An appliance manufacturer wants to contract with a repair shop to handle authorized repairs in…

A:

Q: Suppose that a random sample of size 36 is to be selected from a population with mean 47 and…

A: Population mean μ = 47Standard deviation σ = 8Sample size = 36We have given that x¯ will be more…

Q: Let z be a standard normal random variable with mean ? = 0 and standard deviation ? = 1. Use Table 3…

A: The probability shows how likely an event occurs.

Q: Drill lifetime: A sample of 50 drills had a mean lifetime of 12.02 holes drilled when drilling a…

A: Provided information:Population standard deviation = 6.36Sample mean = 12.02Sample size, n =…

Q: Overproduction of uric acid in the body can be an indication of cell breakdown. This may be an…

A: The sample size is 11, the sample mean is 5.31 and the population standard deviation is 1.79.

Q: Which of these measures of central tendency would be most applicable to the Tax Rate variable?…

A: The data for the "Tax Rate" variable from the table is as follows:Mode: The mode is the value that…

Q: Suppose Diane and Jack are each attempting to use a simulation to describe the sampling distribution…

A: The mean of the population which is left skewed is 70 and standard deviation is 5. Jack has taken…

Q: A basketball coach believes that the variance of the heights of adult male basketball players is…

A: The sample variance and sample size of heights for basketball players are: & The sample variance…

Q: sixty percent (60%) of Students of the Reginal College were took French. Fifteen (15) were randomly…

A: We have given that p = 60% = 0.60n = 15

Q: A marriage counselor has traditionally seen that the proportion p of all married couples for whom…

A: From the provided information,Sample size (n) = 210From which 167 of them stayed together.Level of…

Q: What is the null hypothesis for the ECDF-based tests? O Ho: M1 = μ2 ○ O Ho: F(X) = G (Y) H₁ : 0 =…

A: We have to write the null hypothesis for empirical cumulative distribution function based test.

Q: Use the probability distribution for the random variable x to answer the question. Find p(4). 0 1 2…

A: Probability mass function of X is x012345p(x)0.20.250.30.1?0.05

Q: A medical research team at the university is investigating the effectiveness of a new medical…

A: It is given that the new treatment will only be deemed effective if it significantly increases the…

Q: Determine the sample size required to estimate a population mean to within 8 units given that the…

A: Margin of error E = 8Population standard deviation σ = 55C.I = 90% = 0.90α=1−C.I=1−0.90=0.1Note:…

Q: Evaluate. 71 51 O A. 7 OB. 42 O c. 21 D. 75

A: calculate 7!/5!, you can simplify it as follows:7!/5! = (7 * 6 * 5!)/(5!) In combinatorics, this is…

Q: Students in a statistics class took their first test. The following are the scores they earned. Fill…

A: The data are given on the scores earned by students.Given that,Sample size

Q: A space agency compiles data on​ space-shuttle launches and publishes them on its website. The…

A: Note: As per our guidelines we are supposed to answer only 3 sub-parts of any questions so I am…

Q: Please tell if I am doing things correctly.   Question 1: What is the Pearson correlation r?…

A: 1) the Pearson correlation r : as we have given R-squared value R2=0.8989 then the value of r is :…

Q: The table shows the earnings (in thousands of dollars) of a random sample of 11 people with…

A: For people with bachelor's degrees,Sample size, For people with associate's degrees, Sample size,…

Q: Suppose that a long distance taxi service owns 4 vehicles. These are of different ages and have…

A: n=4 The probabilities that, on a given day, each vehicle will be available for use are: 0.90, 0.90,…

Q: 22 01:18:03 A project's coefficient of variation is 0.45. The project has a positive coefficient of…

A: CV=0.45 , standard deviations=σ=? Sample mean= X¯=9000

Q: The ability to find a job after graduation is very important to GSU students as it is students at…

A: Sample size n=3878Favorable cases x=3241

Q: What percentage of hospitals provide at least some charity care? Based on a random sample of…

A: Given Information: Hospital reports from eastern states are:57.1,…