When sandy made landfall in October of 2012, it became the second most costly hurricane in the US. As of march 2014, the estimated cost was over $68 billion. much of the damage was caused by flooding. the rainfall in areas affected by sandy follow a normal distribution. the average rainfall during the storm was 7.3 inches with a standard deviation of 2.44 inches (www.accuweather.com). Areas in Maryland and New jersey saw more than the other affected regions. a) what is the probability that a randomly selected region has less than 5 inches of rain? b) what is the probability that a randomly selected region had between 10 and 12 inches of rain? c) what is the probability that a randomly selected region had more than 20 inches of rain?

Q: 1, Ten freshmen civil engincering students took a test in Mathematics (x) and Chemistry (y). Their s...

A:

Q: Let X be a random variable with p.d.f f(x) =x(9-x), 0sxS 3. Find the mode.

A: Introduction Mode: Mode is one of the types of measures of central tendency. Mode is the location pa...

Q: Illustration 10,2. Calculate the nican deviation from the following data Sizc of iten 6 7 8 9.10 11 ...

A:

Q: Thirty Asian Utility vehicles were tested for biodiesel fuel efficiency (in km/liter). The following...

A: Given frequency distribution: Class Frequency 8-12 3 13-17 5 18-22 15 23-27 5 28-32 2 ...

Q: Below, n is the sample size, p is the population proportion of successes, and X  is the number of s...

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of suc...

Q: A researcher is investigating whether a reading intervention program improves reading comprehension ...

A: Given: σ = 13.35   Group 1 consists of n₁ = 38 second graders who did not participate in the program...

Q: This graph shows GDP per capita for West and East Germany, Japan and Spain between 1950 and 1990. 24...

A:

Q: 8. The Muscat Distributing Company is investigating two different scheduling methods for its truck d...

A: Introduction: Coefficient Of variation:  The coefficient of variation is the relative measure of dis...

Q: 8. The Muscat Distributing Company is investigating two different scheduling methods for its truck d...

A: For the given data find ( a ) mean  =? s.d =? for both methods ( b ) C.V =? for both methods

Q: 1. 3 7. 10 13 P(X) 0.2 0.9 0.7 0.6 10 11 P(X) -0.1 0.4 0.7 0.8 1 3 P(X) 0.3 0.2 0.2 0.3

A:

Q: The most commonly used measure of central tendency

A: here use basic of central tendency 

Q: Answer 4-6 only show complete solutions

A: Given The data is as follows: Pop. mean, μ=200Sample size, n=100Sample mean, x¯=190Pop sd, σ=30α=0.0...

Q: CNNBC recently reported that the mean annual cost of auto insurance is 958 dollars. Assume the stand...

A:

Q: Use a t-test to test the claim about the population mean u at the given level of significance a usin...

A:

Q: b) If there are 3.000 plants in the field, approximately how many will be taller than 71 in?

A: Here use basic of normal distribution 

Q: How many polygons can be possibly formed from 8 distinct points in which no three of which are colli...

A:

Q: х y 0.5 0.5040 0.5156 5 0.5257 7 0.5365 Find the exponential regression curve and the standard devia...

A: Exponential regression equation is given by y= a*(b)x log(y)= log(a)+x*log(b) Y= A+BX log(y)= Y, log...

Q: Exercise 6-35 Algo According to a company's website, the top 20% of the candidates who take the entr...

A:

Q: Illustration 9.20. The following Table shows the distribution of- 105 families according to their ex...

A:

Q: What are the real-life situations where hypothesis testing can be done? Identify the parameter to be...

A:

Q: Samuel F.B. Morse (1791 – 1872), the creator of Morse Code, claimed that 12% of all letters used in ...

A:

Q: llustration 10.6. Calculate the standard deviation of the follow- ing data Class Frequency 1-3 3-5 5...

A:

Q: If an experiment can result to any of 5 possible outcomes, what is the size of the event space for t...

A: The three statements are given. We have to check whether the statements are true or false.

Q: You have set a professional goal to become the head of your workplace’s Party Planning Committee.  Y...

A: Given that  Sample size n =47 Favorable cases x =34 Sample proportion p^=x/n  =34/47 =0.7234

Q: a study of cell phone use and brain hemispheric dominance, an Internet survey was e-mailed to 5000 s...

A: Bootstrap confidence interval     The bootstrap is a method for estimating standard errors and compu...

Q: Note: Given that SAT scores are reported as whole numbers round off your answer for X to a whole num...

A: The z score is calculated by the combined values of mean and standard deviation. The z score is used...

Q: The Sweet Encounter is a touring international candy festival. The festival's most popular product i...

A:

Q: A publisher wants to estimate the mean length of time​ (in minutes) all adults spend reading newspap...

A: The random variable length of time follows normal distribution. We have to construct 90% and 99% con...

Q: Supoise you are researching the eating habits of people your age. What sampling method could you hse...

A: Sampling : Sampling is a strategy for picking individual members or a subset of the population in or...

Q: Ken is a sports teacher in a college and he wants to examine whether there is any difference in the ...

A: Any assumption about the parameter or probability function is known as hypothesis testing . For the ...

Q: within six years. Is this percent smaller than for students who play intramural sports? 155 of the 2...

A:

Q: Answer the following problems with random samples taken from the normal population (The choices are...

A: Note: According to bartleby experts question answers guidelines an expert can solve only first quest...

Q: would this indicate that the G11 STEM students results are different with the G12 STEM students resu...

A: here given, A study was conducted by Grade 11 STEM students to investigate the health hazards of wor...

Q: (6) Find the value of a. a (i) Find the probability P(X < 5) = (ii) Find the probability P(X + 4) =

A: Here AS PER POLICY I HAVE CALCULATED 3 SUBPART  Here use given discrete probability distribution of ...

Q: [item#D6] (refer to the photo below) Identify two factors, other than the wolf population, that may ...

A: Given The graph is as follows:

Q: Gold Silver Boys Girls 3 6. 9. A student is randomly selected. Find the probability (in exact fracti...

A:     Gold Silver Bronze Total Boys 3 7 5 15 Girls 6 2 9 17 Total 9 9 14 32

Q: Cuts Pizza is a large restaurant chain. After paying for a meal at Cuts Pizza, customers are asked t...

A:

Q: population has a mean of 60 and a standard deviation of 5. A random sample of 16 measurements is dra...

A: Here, mean is 60 and standard deviation is 5. Number of samples are 16.

Q: In how many ways can the letters of the word PROBABILITY be arranged? A. 19, 958,400 B. 9, 979, 200 ...

A: The objective is to identify the number of ways the defined word, i.e., PROBABILITY can be arranged.

Q: Professor Piraneo has three classes with 80 students total.  He created a distribution for mid-term ...

A: a) The distribution for mid-term scores is given as, Score No. of students 90-100 12 ...

Q: A credit card company claims that the mean credit card debt for individuals is greater than $5,200. ...

A: Given: x=5414σ=675n=34

Q: What is the standard deviation Og of the sampling distribution for the proportion of "e's contained ...

A: her e given , Samuel F.B. Morse (1791-1872), the creator of the Morse Code, claimed that 12 % of all...

Q: The mean price of a pound of ground beef in 75 cities in the Midwest is $2.11 and the standard devia...

A:

Q: State whether each hypothesis is null or alternative. 1. The proportion of senior high school stude...

A: Hypothesis is the statement about the population The hypothesis of no difference is called as null h...

Q: Illustration 10.7. Compute the standard deviation by the short method for the following data: 11, 12...

A: Data given  11,12,13,14,15,16,17,18,19,20,21

Q: State whether each hypothesis is null or alternative. 1. The average iricome of families per month ...

A: Null and alternative hypotheses: Null hypothesis: Null hypothesis is a statement which is tested for...

Q: What are the real-life situations where hypothesis testing can be done? Identify the parameter to be...

A: Hypothesis testing : Hypothesis testing is a type of statistical inference that uses sample data to ...

Q: Researchers conducted trials to investigate the effects of color on creativity. Subjects with a red ...

A: The objective is to test the claim that the blue color enhances the performance of a creative task a...

Q: 1. Given the distribution whose mean is 20.5 and whose standard deviation is 4. Find the Z-score for...

A: Given the distribution with mean is 20.5 and standard deviation 4. We need to find the Z-score for e...

Q: Show your complete Solution. 1. A study of 40 bowlers showed that their average score was 186. The s...

A: Given,sample size(n)=40mean(x¯)=186standard deviation(σ)=6α=1-0.95=0.05α2=0.025Z0.025=1.96    (from ...