The Rankine expression for the coefficient of active earth pressure is: 1 - sin 1 + sin Ka = Determine the mean value and standard deviation of K, for a soil whose angle of friction has a mean value of 33 and a standard deviation of 2º.

Q: Determine the number of different arrangements that can be made of the letters that occur in…

A:

Q: The Department of Health collected data on the amount of sodium (in mg) in hotdogs advertised…

A: The sample sizes, sample mean and sample standard deviation for three type of hot dogs amount of…

Q: Commuters A recent random survey of 105 individuals in Michigan found that 82 drove to work alone. A…

A: Given data: Confidence level = 90% Michigan survey: x = 82 and n = 105 New York survey: x = 58 n =…

Q: Here is a data set: 5890 5640 4960 4970 4810 5600 4970 5400 6140 5120 5850 5890 5120 6090 5170 5470…

A: Given that: 5890, 5640, 4960, 4970, 4810, 5600, 4970, 5400, 6140, 5120, 5850, 5890, 5120, 6090,…

Q: The figure plots the number of manatee deaths by boat versus the number of boats registered to…

A: The coefficient of determination essentially indicates the explained proportion of variation in the…

Q: The results below pertain to a test conducted to investigate how a group of items in a survey are…

A: Cronbach's alpha: Cronbach's alpha is the most common useful measure for internal consistency of the…

Q: A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola…

A: Given data: Sample Mean = 43.6 Population standard deviation = 6.9 Sample size = 30 Population mean…

Q: Here are the scores of 11 students on a science test. 65, 69, 69, 77, 79, 80, 81, 82, 85, 86, 93…

A:

Q: One of the biggest factors in determining the value of a home is the square footage. The…

A: here first we have regression line ;

Q: Three unbiased the probability heads? coins are tossed. What is of getting at most two

A: given data  3 unbiased coins are tossed no. of equally likely outcomes = (2)(2)(2) = 8

Q: A psychologist believes that the frequency that a person engages in sexual activity without a…

A: Chi square test is used to determine the independence of variables in the data set. There are four…

Q: A population of values has a normal distribution with = 180.8 and σ = size n = 10 is selected, 19.2.…

A: Given,mean(μ)=180.8standard deviation(σ)=19.2sample size(n)=10

Q: In which of the following situations we can not construct a confidence interval for the population…

A: We need to determine whether we can construct the confidence interval for the following cases or…

Q: If X is a Normal R.V with mean zero and variance o² Find the p.d.f of Y=e*.

A:

Q: If P(E)= 0.60, P(E or F) = 0.75, and P(E and F) = 0.10, find P(F). P(F) = (Simplify your answer.)

A: given data, p(E)=0.31p(E)c =?the probabilty is =?

Q: wider people often have a hard time finding work. AARP reported on the number of weeks it take ata…

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

Q: 7.38 Food intake and weight gain. If we increase our food intake, we generally gain weight.…

A: Given the data as Weight before Weight after 55.7 61.7 54.9 58.8 59.6 66 62.3 66.2 74.2…

Q: A Japanese company manufacturing Tonkatsu sauce uses a special kind of machine to dispense the sauce…

A: This is example of two tailed test for population mean. Here Population standard deviation is not…

Q: An elastic cantilever beam is subjected to a point load, W, as shown in Fig. 5.2. Ignoring the self…

A:

Q: The daily sales of Hi-White toothpaste are believed to be approximately normally distributed. For a…

A: Critical value has obtained using formula.

Q: USE THE 8-STEP HYPOTHESIS TESTING In a study by Xiao and Shi (A-14), researchers studied the effect…

A: Given that:   No. of Mice with Helicobacter pylori Eradicated   Yes No   Triple therapy 8 2…

Q: QUESTION 13 The monthly salaries of employees of a construction company is normally distributed and…

A: given data  normal distributionμ = 16000σ = 2500n = 25

Q: A random sample of likely voters showed that 61% planned to vote for Candidate X, with a margin of…

A: Given data: given proportion = 61% Margin of error (E) = 3% Confidence level = 95%

Q: This problem is inspired by a study of the “gender gap” in earnings in top corporate jobs. The study…

A: Given information: The output of simple linear regression is given.

Q: The probability density function of a random variable, X, is: fx(x)=(8x-x4) 0≤x≤2 Determine the…

A:

Q: A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the…

A: Given 2 red balls 3 green balls 2 blue balls

Q: Find the confidence level related to the critical value ta/2= -2.45 where the sample size n =10. O…

A: GIVEN DATA, tα/2=-2.45n=10df=n-1=10-1=9confidence level is =?

Q: A town believes that an average of 33 cars travel through an intersection each hour. A new worker…

A: Given data is 35,31,34,32,32,30,29sample size(n)=7significance level=1-0.94=0.06

Q: At the local car shop, the amount of time required for an oil and filter change on an automobile is…

A: Formula has shown in the claculation.

Q: own residents were interviewed and it was found that 422 responded favorably to a question while 501…

A: given data, 422-favorably responded501-negetively responded 923- total  interviewed for positive…

Q: You roll a fair six-sided die. If the die shows a prime number then you toss a fair coin that number…

A: * ANSWER :-  From the given information the calculation is given as,

Q: In a charity show tickets numbered consecutively from 101 through 350 are placed in a box. What is…

A: The tickets numbered from 101 to 350. The total number of tickets is 250.

Q: Let the sample space be S = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10). Suppose the outcomes are equally…

A: given data, s={1,2,3,4,5,6,7,8,9,10}outcomes are equally likely we have to find out the given…

Q: The table below gives the age and bone density for five randomly selected women. Using this data,…

A: Given data is Age 43 49 53 60 65 Bone density 358 352 349 343 312

Q: Fill in the missing values for this ANOVA summary table: S.S. d.f. Between Within 952 TOTAL 1070.932…

A: We have given the following ANOVA table   S.S d.f M.S F Between      59.466   Within  952…

Q: 4. The data below represent the number of fatal commercial airline incidents in the United States…

A: Mode: Mode may be defined as the maximum frequency of the observation. Note: According to Bartleby…

Q: A baseball player hit 58 home runs in a season. Of the 58 home runs, 18 went to right field, 19 went…

A: given data, 18- went to right feild19- right center feild10-center feild01- left feild58- total…

Q: The income of farmers depends on various factors. To predict the income of the next year, a study…

A: The variables used are: 1 Income 2 Size 3 Age 4 Ratio 5 Method Income is a dependent…

Q: Espanol An intelligence test was recently administered to a group of 22 people. Their respective…

A:

Q: The Department of Health collected data on the amount of sodium (in mg) in hotdogs advertised…

A: Given data The departement of health collected data on amount of sodium in hot dogs advertised…

Q: The following three independent random samples are obtained from three normally distributed…

A: Work study vs. Co-op: Given information:

Q: Ann, who turns eighty years old this year, has just learned about blood pressure problems in the…

A: a) Suppose a random variable X defines the systolic blood pressure measurements of a woman over…

Q: The owner of a dry cleaning business studied the number of dry-cleaned items that were returned for…

A: Given data: Day Items returned 1 6 2 10 3 4 4 5 5 9 6 10 7 5 8 6 9 8 10 6…

Q: X 81.4 31 81.4 32.3 70.7 1.4 59 -11.7 87.1 38.5 77.4 13.8 70.6 7.6 79.8 21.3 91.8 53.3 69.6 16.1…

A: The question is about correlation Given : To find : 1 ) Value of r 2 ) Value of R2

Q: In a survey of 2071 adults in a recent year, 1281 say they have made a New Year's resolution.…

A: Given n=2071 x=1281

Q: Smaller p-values indicate more evidence in support of: Group of answer choices The quality of…

A: Given: Smaller p-values indicate more evidence in support .

Q: (three or more babies) in a particular year for women 15 to 54 years old. Use the data to complete…

A: Definition Probability may be defined as the ratio of favourable outcomes to the total outcome.

Q: Lottery Prizes A lottery offers one $1000 prize, two $500 prizes, three $300 prizes, and four $200…

A:

Q: According to Central Limit Theorem, the sampling distribution of the sample mean is approximately…

A: Central limit theorem: For the large sample size, the sampling distribution of sample mean follows…

Q: I ran a regression, with many variables to predict the result of another variable which was the…

A: Given:-            The  mistakes are done by the author is listed below: