6 couples are in a round table but men and women must sit alternately. In how many ways can this be done?

Q: Find the area: (a) between 2.25 and -1.25 (b) between -2.38 and -1.28

A:

Q: In how many ways could 10 different questions be arranged on your next quiz if:   a) there are no ...

A:

Q: 13.27 Women's heights. A random sample of female college students has a mean height of 65 inches, wh...

A:

Q: What is the test statistic z? Ex: 1.23 ©

A: Given: Proportion to be tested p0=0.69 Sample size, n=193 No. of customers satisfied, x=146

Q: 5. Explain the reason(s) for using a line graph (line of best fit) for this data. 6. After completin...

A:

Q: Telephone interviews of random sample of 211 registered voters are performed and each person is aske...

A:

Q: A software company is interested in improving customer satisfaction rate from the 69% currently clai...

A: Given Hypothesized pop. proportion, p0=0.69Favorable cases,x=146Sample size,n=193Sample proportion,p...

Q: Based on the information below, which pair is not statistically different? xbar_A = 251.6 n_A = 5 MS...

A: The Studentized range (Q) distribution is used to compare the significant difference between multipl...

Q: A) Construct the 95% confidence interval for the difference in means. The means and pooled standard ...

A:

Q: + | 8 O 3/ 3 100% Temalese 20 O Male crabs A Female crabs 80 o DD OO 00 35 40 45 50 25 30 Carapace w...

A: Here the two variables are Rear width and Carapace width of crabs measured in mm. As width is given ...

Q: Problem 3. A teacher wishes to find out if the E-learning teaching method is more effective than the...

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

Q: A Hospital record for a patient indicates the patient's assigned department, room location and numbe...

A: In this table we can clearly see that Department and Room Location are the qualitative variables of ...

Q: Chemical Oxygen Demand (COD) is a necessary water fine parameter due to the fact similar to BOD, it ...

A: Introduction: Denote μ1, μ2, μ3 as the true mean reduction percentage of COD in wastewater, using Tr...

Q: Consider that X1, X2, X3, X4, X5 is an independent random sample where Xi follows a normal distribut...

A:

Q: From the following table, interpolate the missing values. 3 6. 4. Year 350 430 200 220 260 Productio...

A:

Q: Whenever a certain mathematician needs a piece of chalk she is equally likely to retrieve  a piece f...

A: From the given information, a piece of chalk she is equally likely to retrieve a piece from her righ...

Q: You want to know if a majority of congressmen support an upcoming bill.      The parameter is a prop...

A:

Q: A manufacturer of apple phone charges claims that only 4% of his production is defective.  In a rand...

A: Claim : only 4% of his production is defective

Q: AGE DISTRIBUTION OF STUDENTS AT A LOCAL COLLEGE AGE NUMBER OF STUDENTS 15 – 19 34 20 - 24 68 25 – 29...

A: The total number of students is 194.

Q: Ah amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and...

A: For given data Find Test statistics ,p values, Conclusions for method of loading and unloading , typ...

Q: Consider the following distribution : X : 0-10 10-20 20-30 30-40 40-50 f 12 18 20 25 23 Compute mean...

A:

Q: C) A card is drawn from a standard deck of cards. What is the probability of drawing Jack OR Queen? ...

A:

Q: John has 5 boxes of pencils and have total of 500 pencil Box number 1 and 2 have a total of 260 pen...

A: Given that  John has 5 boxes of pencils and have total of 500 pencil. ( B1+B2+B3+B4+B5 )  = 500 ----...

Q: 23- a. The population 3,9, 14, and 20 has standard deuiation mean of o and the of 4.356. The z-score...

A: Population (X) : 3,9,14,20 n=number of values in data set = 4 mean=Σxn=3+9+14+204=464=11.5   std.dev...

Q: The pulse rate of 550 adult men approach a normal distribution with a mean of 80 bpm and a standard ...

A:

Q: The mean weekly sales of the chocolate bar in candy stores was 1463 bars per store. After an adverti...

A:

Q: Let f be a GPD density function with paramters & and B such that -(-+1) f(x) = B-1 (1+ where B > 0. ...

A: From the given information, f be a GPD density function with parameters ξ and β such that  fx=1β1+ξβ...

Q: Which statement below is correct? a. Standard deviation should be used when calculating z for a sin...

A:

Q: If X B(6,0.2), then P(X =3) is (give your answer as a decimal without any rounding)

A:

Q: Example 2-5. Obtain the median for the following frequency distribution: 6 7 8 2 15 9 6 1 3 4 5 f : ...

A: Given : x f 1 8 2 10 3 11 4 16 5 20 6 25 7 15 8 9 9 6

Q: A survey of 38 men found that an average amount spent on St. Patrick's day of $113 with a standard d...

A:

Q: using the scale box - and whisker plot for eaxh of the two data set  replacing the second plot below...

A: Given   

Q: Using the regression model, which is the estimated score in quiz of a student and is the number of h...

A: The regression equation is ŷ = 50 + 10x, where ŷ defines the estimated score in quiz of a student an...

Q: A positive correlation coefficient means that there is a relationship between two variables. O Zero ...

A: Correlation - Is a mathematical measurement of degree of association between two variables. Positive...

Q: 1) Levels of Measurement A. What is the Nominal level of measurement? B. What is the Ordinal level o...

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. Please make a new re...

Q: The following are some of the particulars of the distribution of weight of boys and girls in a class...

A:

Q: The mean and standard deviation of 200 items are found to be 60 and 20 respectively. If at the time ...

A:

Q: A large group of students took a statistics test.               The mean score, from the scale of 10...

A:

Q: Obtain sufficient estimators of theta based on a random sanple of size n drawn from the pdf f(x, the...

A: Given that,  f(x,θ) = e-(x-θ), x≥θ, θ>00, otherwise

Q: b) The following table shows the time students from a college took to complete a marathon. Time (min...

A: As per our guidelines we can solve first three sub part of question and rest can be reposted. Soluti...

Q: (X- Example 9-31. If X ~ N (µ, o²), obtain the p.d.f. of : U

A:

Q: An experiment consists of testing two integrated circuits that come from the same silicon wafer, and...

A: We have given that 

Q: Calculate the 75% percentiles, 25% percentiles, and the IQR for the following data:   9, 12, 20, 5...

A: Given : Observation 9 12 20 5 14 7 16 13

Q: The table below shows the probability distribution of the discrete random variable X.          X 2...

A: As per guidelines expert have to answer first question three subparts only dear student please uploa...

Q: 7. Compute by Fisher's formula the Quantity Index Number from the data given below 1994 1996 Article...

A: Index number are broadly classified as simple index number and weighted index number. Aggregate meth...

Q: Y 1 2 4 8. 16 |P(y) 0.05 0.10 0.35 0.40 0.10 Construct the cumulative distribution function.

A:

Q: If X- B(7,0.35), then P(X> 2) is (round you answer to four decimal places)

A:

Q: e table below shows how students performed based in their gender. Use the table to answer the follow...

A:   Gender     Grade Males Females total A 5 8 13 B 13 36 49 C 29 ...

Q: What is moving average? What are its uses in analysis of time series? Given the numbers 2, 6, 1, 5, ...

A: With the provided information, the weighted moving average of the given time-series data (i.e., 2,6,...

Q: On the way to school, a student encounters a traffic light on Main Street. The student estimates tha...

A: