Statistics Question

Q: Statistics Question

A: Given: P(B) = 0.58 & P(A|B) = 0.70 Using the conditional probability law, the conditional probab...

Q: Use the pmf in exercise #30 to answer the following: An individual who has automobile insurance from...

A: y p(y) y*p(y) y^2p(x) 0 0.6 0 0 1 0.25 0.25 0.25 2 0.1 0.2 0.4 3 0.05 0.15 0.45   sum 0.6 ...

Q: Given the function  k(t) = 2t − 1,  complete the following. (a) Evaluate k(2).(b) Solve  k(t) = 5. ...

A: a) The function is given as k(t) = 2t – 1.

Q: Both data sets represented below have a mean of 50. One has a standard deviation of 2.4, ar the othe...

A: Solution: Mean for both data sets is 50 The standard deviation for one data set is 2.4 The standard ...

Q: Fan we conclude at significance level of 0.001 that nore than 5% 0f all students in the popuation Fa...

A: The following information is provided: The sample size is N=267N = 267, the number of favorable case...

Q: One of the great difficulties a small restaurant manager faces is to pleaseevery customer who differ...

A: Measure of Central tendency : It is a single value with in the range of data which represent a group...

Q: Thirty randomly surveyed individuals stated the approximate distance (inmiles) between their homes a...

A: A histogram is a graphical representation of data which gives details about the values in sample and...

Q: The l-distribution. Prove that if X and Y are independently distributed, X having the distribution N...

A: X~N0,1Y~χ2m m is the degrees of freedom X and Y are independent. fx=12πe-x22fy=12m2gammam2e-y2ym2-1

Q: please assist with this NON GRADED problem, data information below.   Price Mileage Age 16998 3...

A: The given estimated regression equation is, Selling Price = 20385.25049 – 0.03739 Mileage – 686.3366...

Q: Following are the published weights (in pounds) of all of the team members of the San Francisco 49er...

A: The data is arranged in ascending order as below: 17417717818418518518518518819020020520520621021021...

Q: Table 4 shows the selling price of three different brands of sanitizer at based on 4 randomly select...

A: We perform ANOVA using the step by step procedure in excel as below: Enter the data into excel shee...

Q: Let y be a random variable having a normal distribution with a mean equal to 250 and a standard devi...

A: Normal Distribution :  The normal distribution is the most widely known and used of all distributio...

Q: Assuming that one in 78 births is a case of twins calculate the probability of 3 or more births of t...

A: Solution: Let X be the random variable that births of twins on a day. The probability of twins on a ...

Q: 2. Hi 3. 4.

A: Since you have posted a question with multiple subpart, we will solve first 3 subparts for you. To g...

Q: A marketing researcher wants to estimate the mean amount spent per year​ ($) on a web site by member...

A: Let, X = Amount spent per year​ ($) on a web site by membership member shoppers. Given that; n=100x¯...

Q: The breaking strengths of cables produced by a certain manufacturer have a mean, μ , of 1925 pounds,...

A: In this case, a test is required to see whether the manufacturing process has increased the mean bre...

Q: If an M/M/1 queue has utilization of 90%, what do you think will be the average queue length and the...

A: Given that, M/M/1 queue has utilization of 90% that is ρ=0.90. Also, it is given that the arrival ra...

Q: A hospital claims that the proportion, p , of full-term babies born in their hospital that weigh mor...

A: As per our guidelines , we are allowed to answer three sub-parts only. Thanks   The following inform...

Q: Find the standard deviation for the binomial random variable. Round to 4 decimal n= 90 Π= .60

A: For binomial distribution, the standard deviation is calculated as: σ=n⋅π⋅(1−π)

Q: Forty randomly selected students were asked the number of pairs of sneakers they owned. Let X = the ...

A: As per guidelines we will only answer first three parts for the solution. Given information: X = the...

Q: Plzzz explain a, b, c question compulsoury. Then i will rate you. Ty

A: The number of standard deviation 29 inchs far away from the mean is: Thus, 29 inches is 5 standard ...

Q: In April 2013, President Obama’s approval rating was 52%. Suppose the White House staff was concerne...

A: Given: Sample size, n = 300            Number of approvals in the sample, X = 144           Sample p...

Q: the random variable x represents the number of computers that families ha e along with the correspon...

A: Mean E[x] = ∑xP(x)

Q: Plz

A: From the given information, the probability transition matrix is,

Q: The areas of 21 certain​ regions, in square​ miles, ranges from 47 to 819 with Q1=​228, median=329 a...

A: we have given that,  The areas of 21 certain​ regions, in square​ miles, ranges from 47 to 819 with ...

Q: 2.- Given events A and B probabilities P(A)=0.5, P(B)=D0.4, and P (And B)=D0.2, are A and B independ...

A: From the provided information, P (A) = 0.5 P (B) = 0.4 And P (A and B) = 0.2

Q: Find the percentage of students

A:

Q: Locate the critical region(s) for the following scenario? 2 samples with the following sample sizes...

A: The following information is provided: 1st sample size for Group 1 = 15 2nd sample size for Group 1 ...

Q: An article reported that for a regression of y = average SAT score on x = expenditure per pupil, bas...

A: The regression equation obtained is y^=766+0.015x where, y: Average SAT scorex: Expenditure per pupi...

Q: Which of the following values cannot be probabilities? 0, 1.24, 3/5, v2, - 0.45, 0.06, 1, 5/3 Select...

A: Probability is a numerical measure of the chance of occurrence of an event. It provides a base of st...

Q: Cafe michigans manager, gary starkm suspects that demand for mocha latte coffees depends on the pric...

A: We have to fond regresion equation and use it to find y value. 

Q: Classify the variables as independent or dependent. 1. your grade in math and your test scores b Ind...

A: Independent Variable: The variables that are not depending on any other variables that are to be pre...

Q: The height (sidewalk to roof) of notable tall buildings in America is compared to the number of stor...

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Q: t calf ever E tandard lly distribut

A: mean = 225 sigma = 45

Q: Out of a class of 25 students, 24 took an exam in class and got a mean of 74 points and a standard d...

A: Given: Total number of students, n = 25            Number of students who gave the test, n' = 24    ...

Q: 9. Which correlation coefficient fits best. The points are clustered closely around a line with nega...

A: A graph with a negative slope represents a negative correlation between two variables. This means th...

Q: Let  f(x) = 7x − 26.  What ordered pair in f corresponds to the equation  f(x) = 9?  Recall  y = f(x...

A: Given  f(x) =7x - 26  and f(x) =9

Q: Find standard deviations.

A: Provided data is, High school students across the nation compete in a financial capability challenge...

Q: give me applications area cluster ??

A: Cluster analysis: It is the method of dividing set of data objects into subsets and each subset is k...

Q: The records of a casualty insurance company show that, in the past, its clients have had a mean of ...

A: Given claim is "the variance of the number of accidents per day is no longer equal to 0.0036". From ...

Q: The variable Z has a standard Normal distribution. Find the value z such that 85% of the observation...

A: We have to find the value z such that 85% of the observations fall below z i.e we have to find z suc...

Q: A researcher claims that the standard deviation of the number of deaths annually from tornadoes in t...

A: In this problem we are asked to a testing of the population standard deviation. Population SD (σ0) c...

Q: Figure 4.27 lists the results of a student survey pertaining to favorite ethnic foods. Construct a p...

A: Given - The Given information to provide a student survey pertaining to fevorite ethnic foods  In Ex...

Q: The mean of the waiting times in an emergency room is 83 minutes with a standard deviation of 15.5 m...

A: Obtain the coefficient of variation for Additional Treatment.   The coefficient of variation for Add...

Q: Pipe flow in a pipe system, the 5 min interval flow speeds are measured in hydraulic testing.calcula...

A: Given data is:  

Q: A bag contains three different balls, one red (r), one blue(b), one white(w). TWO balls are drawn fr...

A: Given Data: There are 3 different balls in a bag One red (R) One blue (B) One white (W)

Q: 2.Tuition Fees: The following table shows the average annual tuition and fees at private andpublic 4...

A: Given, The following table shows the average annual tuition and fees at private and public 4-year co...

Q: 1. 28        29        30        36        37        39        42        53        54        20 55  ...

A: arrange the data ascending order  a) P15 b)P99 PI =I(N +1)100P15 =15(20 +1)100=15*21100=3.15 3rd obs...

Q: A researcher found that a cigarette smoker smokes on average 31 cigarettes a day. She feels that thi...

A: Given, Population Mean = μ = 31 Sample size = n = 10 Sample mean = x = 28 Sample standard deviation ...