What would be the standard error in computing a confidence interval for the difference of proportions

Q: A card is drawn from a full pack. Find the probability that it a King or a Queen

A: It is known that Total cards in a deck = 52 Number of kings = 4 Number of queens = 4

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Q: Given the score in a statistics examinations, 33 47 54 55 60 65 66 38 45 54 56 69 53 56 72 53 39 65 ...

A: Solution

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Q: ate whether you think the difference between what occured and what you would expect by chance is sta...

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Q: Construct chain Indices from the data given below taking 1990 as the base ver 1990 1991 1992 | 1993 ...

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Q: 3. A study on the length of a certain type of bacteria was conducted. The table below shows the data...

A: The objective is to compute three quartiles for given data .    

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Q: Assume that the probability of a being born with Genetic Condition B isp 59/60. A study looks at a r...

A: Givenprobbaility of a being born with genetic condition B (p)=5960sample size(n)=826

Q: You wish to test the following claim (HaHa) at a significance level of α=0.002α=0.002.       Ho:μ=6...

A: Givensignificance level(α)=0.002The null and alternative hypothesis isH0:μ=60.6Ha:μ≠60.6sample size(...

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A: Here population is 1200(i.e. workers employing at a plant). Out of 1200 sample is taken of size 40. ...

Q: Find invertible representation of Y, = 0.9Y;-1 + e; + 0.5e;-1

A: Given: time series AR(2) process  Yt=0.9Y(t-1) +et+0.5 e(t-1) Then find invertible of Yt?    

Q: College students may be interested in whether or not their majors have any affect on starting salari...

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Q: In ________________ draws from the box, there is more than 50% chance for a red marble to appear at ...

A: Here Given  No of red marbles=2 No of Blue marbles=98  

Q: Example 4 The regression equation of two variables are 3Y 2x - 10 0 and 2Y X- 50 0. Find coefficient...

A: We have given that two regression line of X and Y are 3Y-2X-10 = 0 and 2Y-X-50 = 0. 

Q: 64, 40, 43, 40, 33, 54, 40, 49, 44, 25, 50, 62, 55, 42, 64, 69, 50, 42, 57, 22, 39, 61, 47, 46, 37, ...

A: Arranging the given data set in the ascending order, 21, 22, 25, 28, 33, 33, 33, 34, 36, 36, 37, 38,...

Q: The weights of 10 boxes of cereal are 9.2, 8.7,9.1, 9.3, 9.1, 8.8, 8.9, 9.4, 9.3 and 8.8 ounces. Fin...

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Q: A population consists of five numbers 0, 2, 4, 6, 8 a) List all possible samples of size 2 that can ...

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Q: Define conceptualization

A: Conceptualization is the core synthesis activity of design.

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Q: Example Calculate standard deviation of the following data : : 10 11 12 13 14 15 16 17 18 f : 2 7 10...

A:       x Frequency (f) f⋅x f⋅x2 10 2 20 200 11 7 77 847 12 10 120 1440 13 12 156 2028 14...

Q: 324553.88 136527.47 3449062.64 O 3036975

A: From the output, the  SS (agec | lwtc) is 136527.47

Q: Let A be the event that a business executive selected at random has stomach ulcer and B that he has ...

A: Solution is given:

Q: A. Find the area under the normal curve that lies 1. To the left of z--1.75 2. To the right of z = -...

A: As per company guidelines I solved exactly three part of the question

Q: The average number of students in the college of business is 56, with a variance of 5. The calculate...

A: GivenMean(x)=56Varaince(σ2)=5standard deviation(σ)=5=2.2361Median  was greater than mean by

Q: If the size of a sample is 64 and standard error of mean is 1.5.What should be the sample if standar...

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Q: (a) Find a 95% confidence interval estimate of the percentage of American adults who favored the leg...

A: It is given that Sample size n = 1100 Sample proportion = 47% = 0.47 Margin of error E = 3% = 0.03  

Q: 1. When a red die and a blue die are rolled, the sample space consists of 36 elements. (a) Construct...

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Q: A room has 3 lamps. From a collection of 10 light bulbs of which 6 are not good, a person selects 3 ...

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Q: III. The ages of qualified voters in a certain barangay were taken and are shown below Frequency 20 ...

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Q: From the data given below: (x) 7 3 (y) 2 (a) Calculate coefficient of Correlation r, (b) Find regres...

A:   There are n=8 observations. Construct the following table: x y xi 2 yi 2 xy 1 6 1 36 6 5 1 ...

Q: A die is tossed only once. What is the probability that either a number less than 5 or an even numbe...

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Q: Following are the Chain Base Index numbers ( i.e.Link relatives). Convert them into fixed base index...

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Q: Five breeds of cattle B1, B2, B3, B4, B5 were fed on four different rations R1, R2, R3, R4. Gains in...

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Q: For a given set of bivariate data, the following results were obtained. X= 53.2, Y= 27.9, Regression...

A: Given: X¯=53.2Y¯=27.9Regression coefficient of Y on X, byx=-1.5Regression coefficient of X on Y, bxy...

Q: Exercise 3: Measures of Location and Dispersion AB C D E F 1 4 26 49 62 81 Ans. Function 2. 12 28 49...

A: Solution: In the EXCEL write the given functions and give it in the answer column.

Q: Raman appeared in three tests of 20, 50 and 30 marks respectively. He obtained 75% marks in the firs...

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Q: A population consists of the following scores: 12 2 10 8 7 3 Compute  and  for the population Find ...

A: Given that  Population data :  12    2    10     8     7     3 Population size (N) = 6 Sum of data v...

Q: 2. Vaccines are now available for use but, unfortunately select group of people can have the first d...

A: Find  Mean=E(X)=expected value=?  Variance=V(X)=?  Farmula used  E(X)=∑XP(X=x)  V(X)=E(X2)-[E(X)]2 ...

Q: Suppose the probability of success in a binomial trial is 0.63. What is the probability of failure? ...

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Q: Write out a VAR(2) for these variables. Y t = a 1 + ô t + Ø Y t-1 + Ø Y t-2 + B X + B 12 X t-2 + e l...

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you re...

Q: A fair coin is tossed three times. What is the probability of getting (a) exactly two heads (b) at l...

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Q: Control charts for F and s have been maintained on a process and have exhibited statistical control....

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: The arithmetic mean and standard deviation of a series of 20 items were calculated by a student as 2...

A: We have given that the arithmetic mean and standard deviation of a series of 20 items were calculate...

Q: 1,000 students at college level were graded according to their 1.Q. and ine Leconomic conditions of ...

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Q: Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The filling proc...

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted... Giv...

Q: The values of sample mean X and sample standard deviation s for 15 samples. each of size 4, drawn fr...

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