1. A population has a mean of 75 and a standard deviation of 17.4. A sample of 35 items is randomly selected from this population. What is the probability that the mean of this samples lies between 72 and 79?

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A: Given- Setting a smaller alpha level means: A) No answer text provided. B)The acceptance region beco...

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A: It is known that, E(X)= ΣXi*P(Xi) E(X2)= ΣXi^2 *P(Xi) Variance= E(X2)-(E(X))2 Standard deviation= sq...

Q: Given the data below: Year Quarter 1 Quarter 2 Quarter 3 Quarter 4 1 150 140 190 165 2 1...

A: Given The data is as follows: Year Quarter 1 Quarter 2 Quarter 3 Quarter 4 1 150 140 190 165 ...

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Q: For Questions 1 and 2. Describe a method for using a table of random digits to obtain the rand sampl...

A: (1) Five people from a group of 30.  

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A: Given Random sample =25

Q: * If the CV of A ==11.18% , CV of B= 14.09

A: It is given that Coefficient of variation of A = 11.18% Coefficient of variation of B = 14.09%

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A: Please find the solution below. Thank you

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A: Probability refers to the likelihood of a random event's outcome. It is referred to as determining t...

Q: y (wear) #1 (oil viscosity) 2 (load) 193 230 172 91 1.6 851 816 1058 1201 15.5 22.0 43.0 113 33.0 13...

A: In this question given that table of wear and oil viscosity Find σ2 by using multiple regression

Q: A normal distribution has a mean of 33 and a standard deviation of 4. Find the probability that a ra...

A: GivenMean(μ)=33standard deviation(σ)=4

Q: ite ME if events are Mutually Exclusive and write I if Inclusive.   1. Selecting a female or a gra...

A: We know that  Mutually exclusive events :  When two events can not occur at same time , that events ...

Q: State the following (a) Weak Law of Large numbers (b) Bernoulli's Law of Large numbers.

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Q: (b) From the distribution you found in part (a), what can you say about the distribution of X? The ...

A: Given: X 0 1 2 3 4 5 6 7 P(X=x) 0.2791 0.3907 0.2344 0.0781 0.0156 0.0019 0.0001 0.00000357

Q: farmers in year 2020 was $80,060. A sample of 900 famers, which was taken in 2021, showed an average...

A: We have given that  Sample size n=900 Sample mean =83311 Population standard deviation =25000  

Q: 1. The results of a nationwide aptitude test in mathematics are normally distributed with mean = 63 ...

A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only fi...

Q: Suppose IQ scores are approximately normally distributed with a mean of 100 and a standard deviation...

A: Property of normal distribution  Mean=median=mode   

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A: Given N=350 X=165

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Q: Does the amount of exercise relate to hours of sleep? Is there a strong, moderate, or weak correlati...

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A: Given:  n = 1000 α = 0.01  

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Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots ...

A: We have given that.   X~N( μ , ?^2 )   μ =139 , ? =26.7  ,n=37   Z-score =( x - μ )/?

Q: Consider the figure below and calculate the following probabilities: (a) P(C|A) (b) P(B|A N B) (c) P...

A: "Since you have posted a question with multiple subparts, we will solve first 3 sub-parts for you. T...

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A: Given: Year Interest rate (%) Median home price 1988 10.3 183800 1989 10.3 183200 1990 10.1...

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A: Mean quantity in 20-ounce bottles = 20.8 For 30 mean = 20.9 We have to choose correct option 

Q: Problem 8. The following table gives the heights of students in á class. Find out the quartile devia...

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Q: 1. Find the corresponding area between z= 0 and each of the follow ing: i. Z= 0.96 Z= 2.58 Z = 2.69 ...

A: As per our guidelines we are suppose to answer only one question. Required probability is P(0<Z&l...

Q: A normal distribution has a mean of 34 and a standard deviation of 6. Find the probability that a ra...

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Q: II. For each of the following variables, indicate whether it is qualitative or quantitative variable...

A: Quantitative data: Data that can be counted or measured, and given a numerical value. Qualitative da...

Q: The average IQ of working women in Bangladesh is suspected to be more than 220, on average. A random...

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Q: Compute quartile deviation from the following Tata : Size Frequency 4-8 6 8-12 12-16 10 18 30 16-20 ...

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Q: How many possible of size n=3 can be drawn from a population of size 12? O a 1728 O b, 220 O c. 36 O...

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Q: a typical day at a local popular maii, the number of shopliftersS caught by mail security fiuctuates...

A: λ=8.8

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Q: 3) A principal of a local wants the proportion c school. Describe how 200 juniors, and 140 se

A: Stratified random sampling is a sampling technique in which a population is divided into smaller sub...

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A: As per bartelby guideline expert have to answer first three subparts only dear student please upload...

Q: The mean weight of 150 students in a class is 60 kg. The mean weight of boys in the class is 70 kg. ...

A: The mean weight of 150 students=60The mean weight of boys=70The mean weight of girls=55

Q: I. Write True if the statement is Correct and False if the statement is wrong. 1. Qualitative data u...

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Q: The President of the Farmers Association wants to know how the amount of fertilizer and the amount ...

A: Multiple regression equation : The multiple regression formula is used in the analysis of relationsh...

Q: a) What is the smallest P(A or B) can be? _________   (b) What is the largest P(A or B) can be? __...

A: Given: P(A)=1/2 P(B)=1/3

Q: According to the national survey conducted by DOH on 2016, patients in the urban community, would wa...

A: From the provided information, Sample size (n) = 15 Sample mean (x̄) = 5 Sample standard deviation (...