If my bus is 3.5 years old, what are the projected annual maintenance costs?  (Enter a whole number) Age of Bus (years) Annual Maintenance Cost ($) 2.4 350 2.3 370 2.4 480 3.1 520 3 590 5.8 550 4.8 750 3.8 800 3.6 790 4.9 950 5.5 915

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: given data  normal distribution μ = 100σ = 15P(x<z) = 0.99x =?

Q: ere are four suits: clubs, diamonds, hearts, a ck, Queen, King. The Jack, Queen, and King a arts are…

A: Probability = number of favorable outcomes/ total number of outcomes

Q: If you had 16,8 L and you decrease by 30% how much is the result?

A: Given  Number of liter =16.8 L

Q: Of the 1000 comparison school students in the sample, 290 had overslept and been late to class at…

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

Q: A clinical trial tests a method designed to increase the probability of conceiving a girl. In the…

A: given data,n=666x=333p^…

Q: 10. Write down the template for a "Statistical Significance" conclusion and the template for a…

A:

Q: A researcher is trying to determine the factors affecting the Entrance Exam Scores (EES) of the…

A: Using the above indicated code we can create the table:

Q: A sample of 50 luxury hotels in the Northeast had an average room rate of $325 per night and a…

A: From the provided information, Sample size (n) = 50 Sample mean (x̄) = 325 Sample standard deviation…

Q: Suppose that the amount of protein in certain type of energy bar is Normally Distributed with a mean…

A: According to Bartleby guildlines we have to solve first three subparts and rest can be reposted...…

Q: The normal probability plot shown below was created in R from a sample of Celcius temperatures taken…

A: From the above plot we can see that the all the points are roughly on a straight line. We call a…

Q: Assume you have an Exponential Distribution with parameter of 0.054 Find P(x > 18.2) round to the…

A:

Q: True or false: The expected value of the sample proportion P is equal to the population proportion;…

A: Solution-: True/False The expected value of the sample proportion is equal to the population…

Q: I now test was given to a simple random sample of 82 students at a certain college. The sample mean…

A:

Q: Suppose these data show the number of gallons of gasoline sold by a gasoline distributor in…

A: Moving average forecast for 4 week is calculated using the formula,  Fi = (Ai–1+ Ai–2 + Ai–3 +…

Q: 9 frot quartile s 5 Third Quartile Q3 Variace Sq

A: Given the frequency distribution to find the first and third quartile and variance.

Q: You wish to test Ho: μ = 63.5 versus Ha:μ 63.5 at a significance level of 0.10. You obtain a sample…

A: Given Information: Null Hypothesis H0:μ=63.5 Alternative Hypothesis Ha:μ≠63.5 Significance level…

Q: for next school year. Suppose SC is composed of 45% Freshmen next school year and we take a sample…

A: It is given that the 45% Freshmen next school year and we take a sample of 1 student with…

Q: please answer the wrong ones. box the answer

A: Given data: x y 99.2 28.9 101.2 27.8 102.6 26.9 103.1 25.1 105.3 22.9 107.2 21.4…

Q: whose PDF is η «η IULIII d Oill sa ле поп an f(x|x): It can be shown that 1 X₁ ~ Gamma(n, λ) with…

A: X~exp(λ)

Q: A college claims that the proportion, p, of students who commute more than fifteen miles to school…

A: claim : p<0.15n = 265x = 36α = 0.10

Q: ege claims that the proportion, p, of students who commute more than fifteen miles to school is less…

A: Given that  Sample size n =265 Favorable cases x =36 Sample proportion p^=x/n  =36/265 =0.1358…

Q: A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older…

A: Given that  Sample size n =23 Sample mean=94.3 Standard deviation =21.5

Q: he average price of a home in your community is $200,000 with a standard deviation of $30,240. A…

A:

Q: reatments: 1) P+P: placebo "growth hormone" and placebo "steroid" 2) P+S: placebo "growth hormone"…

A: Solution: Given information: k= 4 groups  n= 60 Total observation  Sum of square of total = SST=…

Q: x-μo -=−1.52 and a one-sample t test is s/√√n performed based on seven subjects. What is the…

A: 7.6) The number of subjects (n) is 7 and the test statistic is -1.52.

Q: Using a weight of for the most recent observation, for the second most recent observation, and for…

A: Weight for 1st = 1/2 = 0.5 Weight of 2nd = 1/3 = 0.33 Weight of 3rd = 1/6 = 0.167 Weighted moving…

Q: For 100 births, P(exactly 57 girls) = 0.0301 and P(57 or more girls) = 0.097. Is 57 girls in 100…

A: We have given. P(exactly 57 girls) = 0.0301 And P(57 or more girls) =0.097

Q: R2.51 Penguins again In Chapter 8 we learned about the extra- ordinary depth and duration of the…

A: Here , scatter plot is given for  Heart rate and duration of Resid(min) Independent variable(X) =…

Q: An airliner carries 100 passengers and has doors with a height of 74 in. Heights of men are normally…

A: given data  door height = 74 in.  height of men: normal distributionμ = 69.0σ  = 2.8

Q: A supermarket chain packages ground beef using meat trays of two sizes: one that holds approximately…

A: Given that, a supermarket chain packages ground beef using meat trays of two sizes: one that holds…

Q: Question 1 Based on a national survey of adults in U.S, 60 percent of adult believe a phone-in poll…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 3. An Internal Revenue Service inspector is to select 3 corporations from a list of 15 for tax audit…

A: Total (N) = 15  Select (n) = 3 Losses (k) = 9 Probability of success will change at every trial.

Q: Salaries of 38 college graduates who took a statistics course in college have a​ mean, x overbar, of…

A:

Q: On their website, a property management company states that the mean monthly rent for apartments on…

A: Claim: the mean monthly rent on the east side, μ is less than $700. Hypotheses: H0: μ=700H1:…

Q: The average full time faculty member in a post secondary degree granting institution works an…

A:

Q: Consider the following discrete distribution X 1 P(X=x) 0.02 2 0.15 3 4 5 0.08 0.25 0.05 € 0.-

A: Given information: The probability mass function of a discrete probability distribution is given.

Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.1 and a standard…

A: Given data normal distributionμ = 97.1σ= 19.4find first quartile.

Q: advertise that they will offer you 100 pounds of free topsoil if it takes their pumpkins more than a…

A: It is given that  Mean, μ = 106 Standard deviation, σ = 5 Z-Score, Z = ( X - μ )/σ

Q: You work for a soft-drink company in the quality control division.  You are interested in the…

A:

Q: Fast

A:

Q: Use R commander to find the z-score z0.06

A: To find Z-score in R, we use the following process:  first define the variable X  X<-c(…..) Find…

Q: Can you simplify 33/38

A: We need to simplify the term 33/38.

Q: Question 5 Consider a Uniform distribution U(14, 33) Compute the value of its Probability Density…

A:

Q: (c) the first is blue and the second and third are not blue

A: total number of beads contains in a bowl = 1414 beads = 5 red beads + 6 blue beads + 3 violet beads3…

Q: 5.6 As s part of his thesis, Adam needs an estimate of the proportion of full-time undergraduate…

A: From the provided information, Confidence level = 90% Margin of error = 0.025

Q: Scenario: A researcher wants to know whether a hard copy of a textbook provides additional benefits…

A: The test is to check whether people who read the passage on a piece of paper will remember…

Q: You are going to monitor customer satisfaction by randomly surveying 20 customers per day, which…

A: From the given information, The mean customer satisfaction rate is 7.5. The standard deviation for…

Q: Before every flight, the pilot must verify that the total weight of the load is less than the…

A: given data normal distributionμ = 179σ = 37.2n = 36over load if x¯>162P(overload) = ?

Q: a. -4 C. O d. A different means, and different standard deviations. O b. different means, but the…

A: Here we have to identify correct option for the given graph

Q: (c) Use a = 0.2 to compute the exponential smoothing forecasts for the time series. Time Series…

A: Forcast value = Alpha*yn-1 + (1-aplha)*y'n-1  y' = forcaseted value . Error = actual value -…