Detemine whether the following graph can represent a variable with a nomal distribution. Explain your reasoning. If the graph appears to represent a normal distribution, estimate the mean and standard deviation. m m m m 5 10 15 20 25 30 35 Could the graph represent a variable with a normal distribution? Explain your reasoning. Select thẻ correct choice below and, if necessary, fill in the answer boxes within your choice. OA No, because the graph is skewed right. O B. Yes, the graph fulfils the properties of the normal distribution. The mean is approximately and the standard deviation is about (Type whole numbers.) O C. No, because the graph is skewed left. O D. No, because the graph crosses the X-axis.

Q: The average number of customers who come to a supermarket is 10 people/hour.  The probability that i...

A:

Q: I Given : Number of pairs of observation X and Y series = 8 %3D X series Àrithmetic Average = 74.5 X...

A:

Q: n independent and identically distributed observations are drawn from a uniform distribution, R(0,θ)...

A: question: n independent and identically distributed observations are drawn from a uniform distributi...

Q: Obtain the two lines of regression from the following data and estimate the blood pressure when age ...

A:

Q: (a) x, = a+bZ, +cZ,- • (b) x, = Z, cos(ct)+Z-1 sin(ct). (c) x, = Z,Z, •

A:

Q: A coin is tossed 10,000 times and it turns uphead 5195 times. Discuss whether the coin may be regard...

A:

Q: Using StatCrunch* and the available data, construct a 99% Confidence Interval for the proportion of ...

A: 3 )Solution: Part(a): p = (136 + 64)/(87 + 15 + 43 + 9 + 136 + 64) = 0.565 The 99% confidence interv...

Q: A Bihomial probability is given. Write the probability in words. Then, use a continuity correction t...

A: Solution: Let X be the number of successes in a fixed number of trials n.   

Q: For a multistate lottery, the following probability distribution represents the cash prizes of the l...

A: Given prize cash and p(x) We have to calculate expected profit from $1 ticket. 

Q: A factor in determining the usefulness of an examination as a measure of demonstrated ability is the...

A: The null and alternative hypotheses are: H0:σ=60 H1:σ≠60

Q: Based on this histogram of heights, estimate: The mean The standard deviation The five-number summar...

A:

Q: Is the number of games won by a major league baseball team in a season related to the team batting a...

A: For the given data set Find (a) The correlation coefficient is r= ? (b) The equation of the least sq...

Q: What is the probability that dwelling 9 visited in this city is the fourth to have a pet? What is ...

A: The proportion of households that own at least one pet in a certain city is estimated to be one nint...

Q: the average final examination scores produced by the two methods are different if the population sta...

A: Let sample 1 for method A and sample 2 for method B. Given: n1=40, n2=36x1¯=78, x2¯=74σ1=5, σ2=5  

Q: The following the distribution of persons according to different income groups Income (in 1000) 0 - ...

A:

Q: It is known that there are 20 students, 1 soccer team will be formed. If there are 3 students who ca...

A:

Q: For each of the three histograms shown, determine whether the mean is greater than, less than, or ap...

A: Given three histograms To determine whether the mean is greater than, less than, or approximately eq...

Q: The probability mass function of a discrete random variable is: 37-x A G for x = 1, 2, ., 14 (a) Com...

A: Solution-: We have, P(X)=a*(15)x(32)7-x   for x=1,2,3,.........14 We compute (a) P(3<X≤9)=? (b) P...

Q: Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating...

A: Given : sample size, n =37 sample mean, x̄ =17.3 population standard deviation,σ=3...

Q: The fan blades on commercial jet engines must be replaced when wear on these parts indicates too muc...

A: The null and alternative hypotheses are: H0:σ2≤0.18 mm2 H1:σ2>0.18 mm2

Q: . MISLEADING SURVEY RESPONSES In one presidential election, voting records showed that 61% of eligib...

A: Given information: It is given that, voting records showed that 61% of eligible voters actually did ...

Q: IEX is a Poisson distribution variable, then its moment generating function is e^(e' -1).

A:

Q: You have n urns, the rth of which contains r- 1 red balls and n-r blue balls, r=1,.. ,n. You pick an...

A:

Q: A watch manufacturer claims that their watches on average will neither gain nor lose time during a w...

A:

Q: fx(xx) = (4-x²), - 2<x2 fy (4) %3D 32 %3D Eind Jhe þdfs of W = X+Y 8 Z= X-Y. [0-h) r2- (1+le) r2 ] =...

A:

Q: Answer the following questions. Prove your answers using derivations, following the properties of su...

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

Q: An unmarried cohabitant has the following goals: (1) to leave all of his property to his domestic pa...

A: C)He should fully fund a revocable living trust that designates his domestic partner as the benefici...

Q: Which of the following is the minimum sample size necessary to construct a 99% confidence interval f...

A:

Q: Suppose that a regression yields the following sum of squares: Σ(yi−y¯)^2 = 400, Σ(yi−y^i)^2 = 60, ...

A: Given dataΣ(??−?¯)2=400,Σ(??−? ?)2=60,Σ(? ?−?¯)2=340

Q: "Trydint" bubble-gum company claims that 4 out of 10 people prefer their gum to "Eklypse". Test thei...

A:

Q: You are performing a study about weekly per capita milk consumption. A previous study found weekly p...

A: For the given data Do the consumption appear to be normally distributed ? Explain  

Q: (c) Compute and interpret the mean of the random variable X. hits (Type an integer or a decimal. Do ...

A:

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

A: We have given that data  15 17 15 19 14 13 13 17 17 12 I want to find mean and standard deviat...

Q: A sales manager collected the following data on x = years of experience and y = annual sales ($1,000...

A:

Q: Suppose a system is made up of two components that function independently. The components are connec...

A: System reliability helps to understand the availability of a system at a particular time. 

Q: that we discussed in class. ds = -a.e.S.I dt dl - a.e-S.1-I dt dR dt s(0) = 995, 1(0) 5, and R(0) 0....

A:

Q: and offcialy designated as Republic Act No. 11460, is a law in the Philppines hat was enacted in Mar...

A: Assume, X be the random variable representing the age of beneficiary will receive the SAP. The requi...

Q: (f) P(-1.05 s Z) (g) P(-1.90 sZ s 2.00) (h) P(1.46 sZ s 2.50) (i) P(1.90 s Z) (j) P(IZ| < 2.50)

A:

Q: A social scientist gathers a carefully chosen group of 20 people whom she is selected to represent a...

A:

Q: The life of Sunshine CD players is normally distributed with mean of  4.2  years and a standard devi...

A:

Q: where B, and B, are the intercept and slope parameters, respectively. Assume that E(u) = 0. Note tha...

A:

Q: Nample 3: The probability density f(x) of a continuous random variable is given by (x)%3Dce , -m < x...

A:

Q: There are 78 students in the cohort. 15 students are enrolled in the chemistry class (denote C), and...

A: Given that,  There are 78 students in the cohort. 15 students are enrolled in the chemistry class (d...

Q: Figure 2 shows the results of the Tukey test to test pairwise differences at the significance level ...

A: Please find the step by step explanation below. Thank you

Q: much do you expect to win or lose in the game? S

A: Here two dice are rolled  Each die have 6 possible outcomes  So Total outcomes by rolling two dice =...

Q: 4. A fisherman decides that he needs a line that will weigh 5 kilos if he is desires. He tests 14 pi...

A: One sample Z test  : When we want to know if our sample comes from a specific population, we utilize...

Q: a) What is a null hypothesis H0? A specific hypothesis where the claim is that the population par...

A: a) Null hypothesis is A working hypothesis making a claim about the population parameter in question...

Q: 1. DIRECTION: FIND THE AREA UN 1. Z =-2.13 2. Z = 0.46 3. Z = 3.8 %3D %3D %3D

A: Given that  1) Z=-2.13 2) Z=0.46 3) Z=3.8 Find the area under normal curve  Note: According to bartl...

Q: Example 16-21. X is a binomial variate with parameters n and p and Fo1, 02 statistic with vị and v2 ...

A:

Q: golf ball is selected at random from a golf bag. If the golf bag contains 6 green balls, 3 red balls...

A: