When x=50 and n=105, what is the value of p? Use: p O 0.52 O 0.84 O 0.48 O 0.57 II

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A: Introduction :-  Given :-  We are asked two questions on it.

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A: Given that,  mean μ=88.09 and standard deviation σ=21.31  P(x<55.65)=?  P(x>138.14)=?   P(84.0...

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A: a)Given data is x 26 12 26 16 11 21 26 14 y 22 34 23 27 33 33 28 36  

Q: In a recent Pew Research Center nationwide telephone survey of American adults, 75% of adults said t...

A: Givenp=75%=0.75sample size(n)=1400Mean(μp^)=p=0.75standard deviation(σp^)=p^(1-p^)n=0.75(1-0.75)1400...

Q: Age Smartphone usage, (hours) 10 21 - 30 31 – 40 11 41 - 50 8 51 – 60 61 - 70 7 71 – 80 2 -

A: For the given table Find the mean and the range using class boundaries.

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A: Solution-: At what level are the following variables measured?  

Q: Compute the p-value for this hypothesis test. Recall that = 112. Hint: Compute P(X < a) (at least as...

A: Given  x¯=112 and n=200  

Q: For items 1-10, consider the following: The members of Math Club are to choose a representative amon...

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A: Given: sample size, n=332 number of people have flu, x=36 Margin of error, E=0.03 confidence level=9...

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Q: Researchers conducted a study of smartphone use among adults. A cell phone company claimed that iPho...

A: . Find a 95% confidence interval for the difference in proportions between white and African America...

Q: P(B) 0.25, P(A and B) = 0.1, find P(A) %3D P(A) = 0.3, P(A and B) = 0.075, find P(B)

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Q: Lunch break: In a recent survey of 660 working Americans ages 25-34, the average weekly amount spent...

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Q: 1. ( You run a regression of monthly returns of Textron, an industrial conglomerate, on the S&P s00 ...

A: From the above outputs X (independent variable) - proportion of market risk Y(dependent variable) - ...

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Q: For #s 9- 10 refer to the problem below: You were planning to open a "McJobee". In order to have an ...

A: Let X be the amount and P(x) be the percentage of profit/loss.

Q: What is the hypothesis test should be used in this problem: Has the mortality rate reduced for lung ...

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Q: -- Vue/wuiz4_Cn6and7,v1/ Because of the relatively high interest rates, most consumers attempt to pa...

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Q: Calculate the probable outlier data points.

A: Lower quartile = 13 Upper quartile = 24.5  

Q: Approximate the variance of times and approximate the standard deviation of the times,

A: Here use formula of standard deviation and Variance of group data Here f = frequency  X = midpoint 

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A: The dependent variable is y and the independent variable is x. The log-log regression model can be g...

Q: 5. A control chart for number nonconforming chart (np chart) is to be established based on a sample ...

A: Given that :  Sample size (n)=300 Number of samples (k)=40 Σnp=d=120 We have to find . a). Compute: ...

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Q: butterflies (Damaus plexippus), a species that undertakes large seasonal migrations size. Why might ...

A: We have given that  Sample size n =92 Sample mean =11.7957 Standard deviation =1.1759

Q: Property 2. (t) is continuous everywhere, i.e., (t) is continuous function of t in (,0), Rather (t) ...

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Q: A labour economist aims to estimate the variance of unemployed workers' mathematic test scores. Assu...

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Q: Your goal is to estimate a population proportion with a sample size n = 700 and the sample proportio...

A: Here check condition use z critical for confidence interval of population proportion 

Q: 1. With economical concerns being so great, many people are no longer purchasing new vehicles, but a...

A: We have given that,  Average or sample mean (x̄) = 6.2, standard deviation (s) = 1.2 and sample size...

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Q: People living in a town are grouped according to their age into five groups. The number of persons l...

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Q: Bree and Kendra love to go to the movies.  When they go, there is a probability of 0.3 that Bree wil...

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Q: Example: Northwestern University posts the grade distribution for its courses online. Students in St...

A: Given that :  Let X denotes the discrete random variable having 0, 1, 2, 3, 4  Then  For x=0.     0....

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Q: Example 6-5. A gamester has a disc with a freely revolving needle. The disc is divided into 20 equal...

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Q: A nationwide survey was conducted to determine the standard hemoglobin and hematocrit values of adul...

A: Two scenarios are given and objective is to find the best sampling scheme for each scenario.  

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A: We have given that  Population mean =8.3 for female Population mean =4.5 for Male  NOTE:- According ...

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Q: inserted into n numbered cells one by one. If the card number 'i' falls in the cell ´i', we count it...

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Q: Following are the ages of the winners of the men's Wimbledon tennis championship and the Masters gol...

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Q: If two regression coefficients are b and b , what would be the value of ry?

A: Regression of x on Y = 9/20 Regression of Y on x = 5/6 Coefficient of correlation =? 

Q: Because of the relatively high interest rates, most consumers attempt to pay off their credit card b...

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Q: Explain browfly about Double Sampling Plan? AQL

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Q: Women, at child bearing age, of a district are grouped into seven age groups. The number of women li...

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Q: Find the area between z =+1.68 and z =-1.37.

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Q: Calculate the standard deviation from the following data : Size of item Frequency Size of item Frequ...

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Q: Each year students in a local school district write a national examination. The average on this nati...

A: Given u Mean = 150, standard deviation = 20 eligible for additional funding: overall average is betw...

Q: Calculate the arithmetic mean of the distribution : Variate x : 5 10 15 20 25 30 35 40 45 50 Frequen...

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