A distribution of values is normal with a mean of 13.8 and a standard deviation of 93.3. Find P21, which is the score separating the bottom 21% from the top 79%. P21

Q: Find the value of the combination. 5C5 O A. 30 OB. 120 O C. 1 OD. 0.5

A: 5C5Determine the combination

Q: any Aplia problems use the following Distributions tool. You can use this tool to retrieve the…

A: Let Z be the standard normal variable.The mean and standard deviation are 0 and 1, respectively.

Q: Each year, marketing and information firm J.D. Power and Associates surveys new car owners 90 days…

A: The mean number of defects for 2 models of cars A and B are compared. A random sample of size n=100…

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: What is meant by the statistical power of an​ experiment? (Write your answer for someone who has…

A: Statistical power in the context of an experiment is a measure of the experiment's ability to…

Q: In statistics question 1 of attached image, is the ANOVA table values correct, and does it show…

A: 1) Given information:n= 18 observation k= 4 independent variables

Q: An urn holds 4 red, 3 blue, and 2 green marbles. Three marbles are selected, altogether, without…

A: The number of marbles in the urn is given as follows:Red=4Blue=3Green=2The variable Y is defined as:…

Q: How many different four-letter secret codes can be formed if the first letter must be an S or a T?…

A: We have to form the different secret codes of four letters. The first letter must be an S or T.

Q: percentage of scores lie within 2.34 standard deviations on both sides of the mean?

A: Standard normal distribution

Q: You may need to use the appropriate technology to answer this question. The following data are from…

A: Treatmen 1Treatment 2Treatment 363837046715453876146715152785964.676871.33Level of significance

Q: A company hires management trainees for entry level sales positions. Past experience indicates that…

A: The provided information is as follows:The probability of success is .The total number of hired…

Q: suppose that for a sexually active male drosophila fruit fly in a particular genetics lab the…

A: Given that for a sexually active male drosophila fruit fly in a particular genetics lab the…

Q: In the diagram below, all circles represent products and the shaded circles represent defective…

A: We have given that total number of circles = 21Number of defective circles = 4Number of…

Q: A researcher hypothesizes that opera music will have an effect on test scores (but she is unsure…

A: Population mean μ = 70Population standard deviation σ = 10Sample size n = 30Sample mean x¯ =…

Q: In a recent year, the mean weight of newborn boys in a certain country was  7.5 pounds. A doctor…

A: In a recent year, the mean weight of newborn boys in a certain country was 7.5 pounds.

Q: μx=enter your response here ​(Simplify your​ answer.) Part 2 σx=enter your response here ​(Type an…

A: Given that,A population has:

Q: Suppose you use the sample mean Y to estimate the population mean E(Y₂): μ. Further, suppose that…

A: The sample mean, Y¯, is used to estimate the population mean,μ, and it satisfies the assumptions CR1…

Q: Determine the sample size required to estimate a population mean to within 19 units given that the…

A: It is needed to find the sample size based on the given confidence level, margin of error and…

Q: According to a report done by S & J Power, the mean lifetime of the light bulbs it manufactures is…

A: n=27,x¯=48,σ=4,μ=47Note: According to bartelby question answer guidelines an expert can solve only…

Q: In a certain game of Dungeons and Dragons a total of 2 dice are used. A 6-sided die (1-6) and a…

A: Given that in a, two dice are used:A 6-sided die with outcomes ranging from 1 to 6.A 2-sided die…

Q: If one card is drawn from a standard 52 card playing deck, determine the probability of getting a…

A: total cards in a deck= 52Number of jack = 4 (one in each suit)Number of Three = 4 (one in each…

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: Suppose that in a particular population of people, 76% have brown eyes. If you were to select eight…

A: It is given that 76% have brown eyes and a 60 people at random.

Q: A statistic is:

A: Here use definition of statistic.Statistic is use for represent the sample.

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: A set of high school students who take the ACT in their junior year perform better on that exam…

A: The scenario described, where students perform better on a test in their senior year due to their…

Q: Company A uses a new production method to manufacture aircraft altimeters. A simple random sample of…

A:

Q: Which statement best describes this regression where Y= highway miles per gallon (MPG) in 91 cars?…

A: Here we have given that the summary table table of regression.Regression analysis is done for Y =…

Q: (a) Compute the mean μx. Round the answer to three decimal places as needed. μx = Part: 1/3 Part 2…

A: Let X be the number of occupants.The probability distribution of X is given…

Q: (a) Consider a t distribution with 30 degrees of freedom. Compute P(t2-1.74). Round your answer to…

A: Hello! Since you have posted 2 different questions, we are answering the first questions. If case…

Q: The formula used to compute a large-sample confidence interval for p is p̂ ± (z critical value)…

A: The confidence level is 0.82

Q: Determine whether the given procedure results in a binomial distribution. If it is not binomial,…

A: Given the procedure: Surveying 200 married individuals and recording if they have ever been…

Q: Suppose that the speeds of cars travelling on California freeways are normally distributed with a…

A: From the provided information,AndLet X represent the speeds of cars travelling on California…

Q: tramadol is an opiate drug for pain relief. Suppose you measure the drug Contant of 64 tramadol…

A: Given:                              Sample Mean (x̄) = 49.8                        Sample Standard…

Q: a. Express the original claim in symbolic form. Let the parameter represent a value with respect to…

A: Claim: Fewer than 9.5% of homes have only a landline telephone and no wireless phone. Sample data: A…

Q: Absolute error- 38.80 microliters - 40.00 mocroliters/ 40.00 microliters *100=

A: The absolute error in percentage using the given information.

Q: The table below gives the values of p(x) for the binomial distribution when n = 6 and p = 0.25. X…

A: The given Binomial probabilities for the variable x with parameters, n=6 and p=0.25 are as…

Q: has been selected from a population with a normal distribution. Nicotine in menthol cigarettes 80%…

A: It is given that Sample std. deviation, s = 0.23Sample size, n = 20Confidence level = 80%

Q: Use the formula Ỹ - to.05(2),df SE < μ< Ỹ + 10.05(2),df SE to calculate a 95% confidence interval…

A: sample size = n = 23 blind individualssample mean=standard deviation =

Q: 7.42 6.24 5.84 6.55 8.39 9.48 7.12 6.79 5.89 4.88 6.53 5.53 7.86 8.26 9.65 Construct a 95​%…

A: The question is about confidence interval.Given :To find :95% confidence interval for population…

Q: 9. The number N of queries arriving in t seconds at a call center is a Poisson random variable with…

A: The provided information is as follows: is the number of queries arriving..The arrival rate is 4…

Q: Given ΣΧ = 120, ΣΥ = 367, ΣΧ2 = 3070, ΣΥ2 = 27517, ΣΧΥ = 9098 and n = 5. 1) The slope of the…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: Show work if possible

A: Yes we show that the how many possible distinct arrrangements for the word 'Mississippi', by using…

Q: A researcher wants to construct a 99% confidence interval for the proportion of Americans who think…

A: From the provided information,Confidence level = 99%Margin of error (E) = 0.02No prior proportion…

Q: Is there a significant difference between the pretest and posttest scores of the Grade 12 learners…

A: First we enter the given data in Excel.Then we can use the following method,Enter Data &gt; Go to…

Q: 1. The discrete random variables X and Y have known joint probability mass function C x = 0,1,2,L,9,…

A:

Q: Find the probability that a person flipping a coin gets (a) the seventh head on the eleventh flip,…

A: Given data isWe have to find probability forseventh head on the eleventh flipfirst head on third…

Q: Find the probability. (Round your answer to four decimal places.) .6 c7c6 1 1 C 13 2

A: C17=7!1!×(7−1)!=7C16=6!1!×(6−1)!=6C213=13!2!×(13−1)!=78

Q: Assume that we have two events, A and B, that are mutually exclusive. Assume further that we know…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 7.9. If X has a hypergeometric distribution with M = 3, N = 6, and n = 2, find the probability…

A: Let  has a hypergeometric distribution.And its parameters are:, , and