Given n = 5000 %3D x = 717 Construct 90% confidence interval for the proportion of returned surveys. a. the best point estimate p (three decimal %3D places) b. critical value , Z = ( three decimal places); marg error, E (five decimal places) C. confidence interval Note: the lower limit first then the upper limit, round in three decimal places.

Q: For the given data. Find 24, 26, 23, 25, 27

A:

Q: 8. Suppose there are 12 books consisting of 6 mathematics books, 4 science books and 2 dictionaries....

A:

Q: 2. I collected two samples of data, and found that the assumption of homogeneity of variance was vio...

A: Given information: s1=10, n1=35s2=45, n2=35

Q: Determine the given in each problem and solve for the statistical value z. 1. It was found on a stu...

A: As per our guidelines we are supposed to answer only one question per post so i am solving first que...

Q: 2.5. Give your answer as a decimal number correct in one digit. The 60% of the staff members of a de...

A:

Q: 2.3 Let A and B be two events af the same sample space. If A and B are independent and P(A) = 0.5 an...

A:

Q: 6. In a binomial experiment with n = 5 and p = 0.23, find the probability of 1 success. %3D %3D

A: X~Bin(n=5, p=0.23)  

Q: The test scores of 10 randomly selected students are listed below. Find the median. 30 35 43 44 47 4...

A:

Q: Question 3 The following questions are based on confidence intervals. iid (a) and o? is unknown. Cal...

A: Given,sample size(n)=10sample mean(x¯)=4+5.26+4.84+6.77+5.23+5.64+3.84+6.43+3.35+4.2810x¯=49.6410x¯=...

Q: What is the total expenses after a year (52 weeks) for the front desk?

A: Total expense for front desk after a year will be the salary paid by the company.Number of positions...

Q: Last year at Berries Bots, the call-in customer service phone line received a total of 56% positive ...

A: Given H0: π=0.56Ha: π<0.56  

Q: The Indian River County Health Department needs to estimate the proportion of all children in the co...

A: 1) It is given that n=116 and the sample proportion is 0.74.

Q: What happened to the confidence interval after increasing the confidence level? Give the width of th...

A: 6) As the confidence level increases, the margin of error increases, as a result the confidence inte...

Q: PROBABILITY DISTRIBUTION OF A RANDOM VARIABLE 15 17 18 19 20 21 22 23 24 P(X) 34 1 6. 69 1 34 34 34 ...

A: Given data is  X 15 17 18 19 20 21 22 23 24 P(X) 134 334 317 317 534 934 117 134 134

Q: 1. An estimator A1 is unbiased if MSE[A1] = Var[A1]. a. true b. false   2. If variable X and var...

A: We have to check whether the given statements are true false we chech them one by one

Q: The probability that none of the three bulbs in a set of traffic lights will have to be replaced dur...

A: here given probability distribution of X (life time in thousand of hour) f(x) = 6[0.25- (x-1.5)2 ]  ...

Q: Question 5 The following questions are based on hypothesis testing. (a) Let, (8.49, 10.39, 9.76, 12....

A: Solution: n = 10 observation  x= ∑xn=99.4410=9.944 Sample mean s=∑(x-x)2n-1s =25.537049s =1.6845 Sam...

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: Mama Rosa equally divided 9 quarts of homemade tomato sauce into 5 jars for her family members. How ...

A: Given The data is as follows: 9 quarts of homemade tomato sauce was divided into 5 jars.

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

A:

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

A:

Q: chocolate

A:

Q: If each different arrangement takes one minute to shuffle around, how long (to the nearest tenth of ...

A: There are total 15 books Here use concept of total arrangement 

Q: Question 1: The Gulf Trading Company plans to purchase an embroidery machine for their sewing unit. ...

A: The objective is to choose which machine is more consistent using variance test 

Q: police radar gun is used to measure the speeds on a highway. The speeds are normally distributed wit...

A:

Q: XYZ auto insurer company offers an auto insurance plan to the employees of a company. The employees ...

A: The company offers an auto insurance plan of a company. The employees cannot choose exactly two of t...

Q: After finishing school, students are expected to owe $46,500. 64 students are selected, the average ...

A: It is given that sample mean is 46,000 and the standard deviation is 500.

Q: Let X be a random variable with p.d.f f(x) x = 1,2,3, ... .Find the mode. 2,4 1,3 1,2 2,3

A:

Q: X1,X2,...,Xn are i.i.d. random variables from N(0,θ) distribution. Here, θ= σ2 >0 is the variance of...

A:

Q: Let X be a random variable with distribution function F(x) = 1-e*,x > 0, then the p.d.f of X is

A: Here given cumulative distribution function of x

Q: 2. Joe, a DOH COVID-19 tracker, found out that the number of infected persons of COVID-19 in seven l...

A: Let all possible random samples of the same size are considered that have been drawn from the same p...

Q: A 95% confidence interval is constructed in order to estimate the proportion of adults who own an iP...

A:

Q: llustration 9.33. The following data represent travel expenses ( 'her than transportation) for 7 tri...

A:

Q: 8. Define Cauchy distribution. Find its characteristic function.

A:

Q: Exit polling is a popular technique used to determine the outcome of an election prior to results be...

A:

Q: Find the critical value(s) and rejection region(s) for the indicated t-test, level of significance a...

A: Using the given information of significance level (i.e., denoted with α=0.10) and sample size (i.e.,...

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

A:

Q: DECIMAL FORM: 15 17 18 19 20 21 22 23 24 P(X) 0.03 0.09 0.18 0.18 0.15 0.26 0.6 0.03 0.03

A: Formula used.  E(x)= ∑x×p(x) E(x2 )=∑x2 ×p(x) Var(x)=E(x2 ) - [E(x)]2 

Q: Q2 A researcher wishes to try three different techniques to lower the blood pressure of individuals ...

A:

Q: A study was conducted by Grade 11 STEM students to investigate the health hazards of working long ho...

A: The given claim that if the mean amount of time (in hours) before the specified symptom develops is ...

Q: The height of women ages 20-29 is normally distributed, with a mean of 63.9 inches. Assume o = 2.5 i...

A: From the provided information, Mean (µ) = 63.9 Standard deviation (σ) = 2.5 X~N (63.9, 2.5)

Q: Create a frequency table.  Also, include a bar chart showing the results.  Based on the results, pro...

A: Frequency table:  Representation Favorite restaurant Frequency 1 Newks  1 2 Outback 1 3 Sol...

Q: We would like to fit a linear regression estimate to the dataset D = {(x"), y), (x(), y(2),... , (xN...

A: Given that to fit linear regression estimate to dataset D=x1,y1, x2,y2,..., xN,yN with xi∈ℝM by mini...

Q: Find the probability that more than 12% of the children in the sample will be nearsighted? Verify th...

A: It is known that 10% of all children have some level of nearsightedness. 200 randomly selectedchildr...

Q: Let X be a random variable with p.d.f f(x) = 2x,0 < x < 1. Find E(Vx) 2/3 5/4 3/2 O 4/5

A:

Q: The probability that an alarm system will work when there is a danger in a construction site is 0.99...

A: The probability of an event is the chances of occurrence of the event. The probability is computed b...

Q: A local school reports that its average GPA is 2.66 +/- 0.40 (mu +/- sigma).  The school announces t...

A: Introduction: Denote μ as the population mean GPA after the new program is introduced, and σ as the ...

Q: The Plush Zoo store sells stuffed animals. The store is running a special on teddy bears this month....

A: Given: No. of stuffed animals, N=670 No. of teddy bears, X=130 Sample size, n=27 No. of teddy bears ...

Q: A sample of size 39 will be drawn from a population with mean 47 and standard deviation 11. Use the ...

A:

Q: The boxplot below shows salaries for Actuaries and CPAS. CPA Actuary 100 110 70 Salary (thousands of...

A: