What percentage of runners consume more that 2.5 litres of water during the ultra marathon

Q: Jeffreys Prior for Matrix Case In this problem we will consider a model which has a two-dimensional…

A:

Q: An insurance company offers its policyholders a number of different payment options. For a randomly…

A: The cumulative distribution function is defined as F(x) = P(X ≤ x)

Q: The scores on a test are normally distributed with a mean of 83 and a standard deviation of 4. If a…

A: GIVEN DATA, normal distrubution μ=83σ=4if a committee widhes to find the score that separates the…

Q: Tenants at a large apartment complex recently filed a lawsuit alleging racial steering. The…

A: From the provided information,   White Black Total Section A 81 14 95…

Q: An examination was held to decide the awarding of a scholarship. The weights of various subjects…

A: For the given data, we need to find, which candidate was awarded the scholarship.

Q: What is the correct interpretation of this confidence interval? (Select all that apply.) We are 95%…

A: Given that  Sample size n =51 95% confidence interval is. ($225,500, $341,800).

Q: Could you please tell me the answer to number 4  4.) what is the probability that you you get all 3…

A: There are 60 bottles. And we’ve 3 rings. Then n= 3 and probability that you you a ring around the…

Q: What is the test statistic and what is the critical value statistic?

A: we need to use a t-distribution since we have a small sample size (n = 10) and do not know the…

Q: intent was done during the pandemic. It was found that only 90% of the adult community agreed to…

A: Population proportion p=0.90 NOTE:- According to bartleby guidelines expert can solve only one…

Q: A certified technician was timed for the repair of a washing machine on 14 separate occasions. Over…

A: Given, The data of time of repair of the washing machine by certified and trainee. technician.…

Q: Calculate the mean and the standard deviation of the probability distribution using a TI-83, TI-83…

A: Let X be the random variable for the number of shots made.  The probability distribution of X is…

Q: STATS 3 FROM PRACTICE MC A farmer is trying to determine if a new chicken feed will put weight on…

A: We have given the following  information  . Sample  Mean 1   =     4.5 Sample Mea  2  = 5.5 Sample…

Q: Suppose the mean GPA of BYU-Idaho students is 3.5 and the standard deviation is 0.7. It is well…

A: Given that.   X~N( μ , ?)   μ=3.5  ,  ?=0.7  , n=81   Z-score =( x - μ )/?

Q: The mean price for a pound of bananas is $0.57 with a standard deviation is $0.02. Assuming that the…

A: GIVEN DATA, mean :μ=0.57standard  deviation :σ=0.02normal distributionproce for a pound of bananas…

Q: oll classified respondents by gender and political party, as shown in the t earcher wonders if…

A: We have already solved test statistic and p-value.

Q: The mean yearly salary paid to all employees in a company was $2,400. The mean yearly salaries paid…

A:

Q: S3. Let X₁,..., Xn ~ N(µ, σ²) be independent random variables. What is the distribution of the sum…

A: The normal distribution is a continuous probability distribution that has wide applications. X is a…

Q: There is popular belief that herbal remedies such as Ginkgo Biloba and Ginseng may improve learning…

A: Given that, The sample size  n=36 The sample mean x¯=84 The population mean μ=80 The population…

Q: In order to determine whether or not there is a significant difference between the hourly wages of…

A: We have given that Sample mean (x̅A) = 6.75Sample mean (x̅B) = 6.25Sample size (nA) = 80Sample size…

Q: From a random sample of 600 citizens, we have a 99% confidence interval of (0.12, 0.15) for the…

A: The 99% confidence interval is (0.12, 0.15).

Q: In a population of normally distributed data, the mean is 68 and the standard deviation is 12.75.…

A: given data normal distributionμ = 68σ = 12.75sample size (n) = 25P(70<x¯<75) = ?

Q: The following summary of a statistical study gives a sample statistic and a margin of error. Find…

A:

Q: 41. Psychology The IQ scores for adults roughly follow the normal distribution y =…

A: Given information: The distribution function is given as, y=0.0266e-x-1002450, 70≤x≤115

Q: A certified technician was timed for the repair of a washing machine on 14 separate occasions. Over…

A: Given, Time of repair of the washing machine by certified and trainee. technician. To find the…

Q: he following table shows the annual number of PhD graduates in a country in various fields.…

A:

Q: A website that reviews recent movies lists 4 five-star films (the highest rating), 15 four-star…

A: Given that, Star Number of movies 5 4 4 15 3 17 2 10 1 4 The frequency is the number…

Q: Working in the garden pulling weeds/planting flowers burns an average of 200 calories per hour. If…

A: We have given information, Let X= A person burn calories who works in the garden for 1 hour. Mean…

Q: In the simple linear regression model Y = Bo+B 1x + ε, which of the following statements are not…

A: The regression model is: Y=β0+β1x+ε

Q: Amy rolls 17 10-sided dice. What is the probability that at least 1 of the rolls are 2s? Solution:…

A: We have given that Amy rolls 10 sided dice 17 times. p=1/10=0.1, n=17, X~Binomial(n=17,p=0.1) X be…

Q: The joint density function for a pair of random variables X and Y is given. (Round your answers to…

A: The joint density function of pair of the random variables X and Y is given as follows: f(x,y)=Cx1+y…

Q: listribution is left-skewed. A random sample of n = 81 students will be c ability that the mean of…

A: Given that.   X~N( μ , ?)   μ=3.5 , ?=0.7  , n=81   Z-score =( x - μ )/?

Q: A normal distribution of scores has a standard deviation of 10. Find the z-score fir the following…

A: Here the given information is A normal distribution of scores has a standard deviation of 10 i.e ,…

Q: 1) A sample of a very large N, that comes from a normally distributed population  a. might have more…

A: As per the Bartleby guildlines we have to solve first question and rest can be reposted ... 1) A…

Q: ou are playing a game of ring toss. There are 50 bottles. You have 3 rings to throw. Your goal is to…

A: In this problem, we are calculating the probabilities of getting 0, 1, 2, and 3 rings around the…

Q: A water taxi carries passengers from harbor to another. Assume that weights of passengers are…

A: Answer:- Given, Population mean, μ = 195  Standard deviation σ = 43  The weight assumptions were…

Q: A poll is given, showing 46% are in favor of a new building project. Let X be the number of people…

A: The question is about discrete prob. distribution Given : Prop. of people in favor of a new building…

Q: Show that for constants a and b ‡ 0 (a) Mx+a(t) = eªt Mx (t); (b) Mbx (t) = Mx (bt); (c) Mx+a (t) =…

A: Solution-: We want to show that for constant a and b ≠0 (a) MX+a(t) =eat MX(t)  (b) MbX(t)=MX(bt)…

Q: A researcher wants to determine the specificity of mammograms to determine how effective they are at…

A: Given :  18 women with breast cancer :  (12 screened positive and 6 screened negative)  82 women…

Q: If the computed test value is within the critical region, what is the correct action to be done? O…

A: Given data :  If the computed test value is within the critical region, what is the correct action…

Q: A soft drink filling machine, when in perfect adjustment, fills the bottles with 12 ounces of soft…

A: We have given that Population mean (µ) = 12

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

A: x y x- x̄  y- ȳ (x-x¯)2 (x- x̄ )(y- ȳ) 1 36.6 -5 11.97727273 25 -59.8864 2 34.01 -4 9.387272727…

Q: A manufacturer claims that the calling range (in feet) of its 900-MHz cordless telephone is greater…

A: given data claim : The claim is that the calling range (in feet) of its 900-MHz cordless telephone…

Q: (b) (a) Read the graph to estimate the median amount of money earned. Estimate the percentage of…

A: The given cumulative frequency graph is: From the provided plot, each vertical value on the curve…

Q: Nationally, the amount of debt from college student loans is exceeded only by mortgage debt and is a…

A: a) given that mean (µ) = 28045 , σ =3604 = p(x>25000) = p(z > 25000-280453604) = p(z>-0.84)…

Q: The ages of employees at two local restaurants are listed in order. Restaurant A - 21, 21, 23, 25,…

A: Given that, The ages of employees at two local restaurants are as follows, Restaurant A 21 21 23…

Q: A company manufactures tennis balls. When its tennis balls are dropped onto a concrete surface from…

A: Given that, The sample size is 25 n=25 The confidence level is 0.95 The sample mean x¯=56.3 The…

Q: For a sample size of n = 100, and σ = 10, we want to test the hypothesis H0: μ = 100. The sample…

A: From the provided information, Sample size (n) = 100 Standard deviation (σ) = 10 Hypotheses: H0: µ =…

Q: One year, many college-bound high school seniors in the US took the SAT. For the verbal portion of…

A: According to the given information in this question We need to find the percentage of students would…

Q: 25 blood samples were selected by taking every 7th blood sample from a rack holding 187 blood…

A: Given that, The sample size  n=25 The population size N=187 The sample mean  x¯=8.636 The sample…

Q: Complete the tables using the data provided. (Enter exact numbers as integers, fractions, or…

A: Answer:- Given data  Researcher A: 3; 4; 11; 15; 16; 17; 22; 44; 37; 16; 14; 24; 25; 15; 26; 27; 33;…