Suppose you are told that in a sample of N =50, 40% of the people are made. What is the n of people who are male?

Q: e in Step 2. Kindly assis

A: Year Advert (X) Sales (Y) 2001 10 44 2002 9 40 2003 11 42 2004 12…

Q: Identify the type of sampling used; systematic, convenience, strati ed, or cluster, or none of them.…

A: In stratified sampling, First we divide the population into the groups then choose a person randomly…

Q: Question 5 Suppose X has a gamma distribution with E(X)=36 and Var(X)=144. Find a and B. 0a-9 and…

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Q: To select 10 students out of the class of 40 students, I select every 4th name from the roster…

A: here  we select 10 students out of the class of 40 students, I select every 4th name from the roster…

Q: Jill wishes to know the salary of an employee in a rival company. What data source will she use to…

A: Since we know that there are two types of data primary data and secondary data which is defined as…

Q: For a Student's t-distribution with mean O, standard deviation 1, and degrees of freedom 30, which…

A: Let, F be the CDF of t distribution with mean 0 and standard deviation 1 and degrees of freedom 30.…

Q: The following is a list of 13 measurements. -72, 43, 14, 26, -19, 50, -23, 6, 49, 36, 18, 25, 28…

A: From the provided information, -72, 43, 14, 26, -19, 50, -23, 6, 49, 36, 18, 25, 28 Number of…

Q: Derek Jeter's career batting average of 0.310. Is this an example of a statistic or parameter

A: Given: Derek Jeter's career batting average of 0.310. is this an example of a statistic or…

Q: Question 1 What is the median of variable​ x?   The median of variable x is   ​(Round to the nearest…

A: X lies between ( 45 to 55) Y lies between (10, 50)

Q: Suppose we roll two six-sided dice. Consider event A as getting an odd number on die 1, event B as…

A: Given that  Two six-sided dice are rolled  Sample space = S S={ (1,1) (1,2) (1,3) (1,4) (1,5) (1,6)…

Q: What is the minimum table clearance required to satisfy the requirement of fitting 95% of men? in.…

A: Given: The sitting knee height of males is normally distributed with μ=21.5 , σ=1.1 The sitting knee…

Q: The figure below shows relative frequency histogram for 50 employees working in a small construction…

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Q: For a Student's t-distribution with mean O, standard deviation 1, and degrees of freedom 30, which…

A: Given that mean is 0 and Standard deviation is 1.  D.f. = 30  We've to find the probability that…

Q: The binomial distribution is used to model the number of trials until the first success   True…

A: We have given statement is  The binomial distribution is used to model the number of trials until…

Q: Suppose that at the beginning of Year 1 you invested 10,000 USD in the Stivers mutual fund and 5,000…

A: From the given information, at the beginning of Year 1 you invested 10,000 USD in the Stivers mutual…

Q: what is the mean

A: We have box plot Box plot shows, Minimum, Q1, Q2, Q3, maximum and outliers if any We know Mean is…

Q: The median of 2, 9, 3, 5, 4, 7, 10, 2, 3, 12 is = 5.5 4.5 04 3.5

A: Given data(x) is;2,9,3,5,4,7,10,2,3,12data in ascending order;2,2,3,3,4,5,7,9,10,12number of…

Q: Albert, Barbara, Chuck, and Dora want to test the hypothesis that two populations have the same…

A: Her we have given, Albert, Barbara, Chuck, and Dora want to test the hypothesis that two populations…

Q: 0.8. Jim claims he run faster than 80% of adult men in this age group. What speed would he need to…

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Q: Using the grouped data below, find the standard deviation. Use the formulas and steps given to find…

A: Using the given grouped data, we need to find the standard deviation with both formuals given.

Q: 47% of U.S. adults have very little confidence in newspapers. You randomly select 10 U.S. adults.…

A: Given that  n = 10 , p = 47% = 0.47 , q = 1 - p = 1 - 0.47 = 0.53 X~ Binomial ( n = 10 , p = 0.47 )…

Q: If S₁ and S₂ are the standard deviations of independent random samples of sizes n₁ = 1₂ from normal…

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Q: 3.6 The shelf life, in days, for bottles of a certain prescribed medicine is a random variable…

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Q: The increased number of small commuter planes in major airports has heightened concern over air…

A: Hint: A discrete probability distribution that measures the number of occurrences of a certain event…

Q: Let X be a random variable and c be a constant. Then Var(X+c) = Var(X), always.   True False

A: From the provided information, The statement is Var (X+ c) = Var (X) Here X be a random variable and…

Q: Motor vehicle collision is one of major causes of death in North America. Although the causes of…

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Q: If S₁ and S₂ are the standard deviations of independent random samples of sizes n₁ = n₂ = 10 from…

A: Given information: S1 and S2 are the two standard deviations of independent random samples of sizes…

Q: Suppose that a new treatment is successful in curing a common ailment 66% of the time. If the…

A: given data  P(successfully curing a common alignment) = p = 0.66 n = 120 x = no. of treatment…

Q: Suppose that IQ scores have a bell-shaped distribution with a mean of 104 and a standard deviation…

A: Here Given , mean = 104  standard deviation = 14  Here use empirical rule .

Q: Based on the properties of the covariance and the correlation, which of the following is correct?…

A: Given: Relationship between varience, covariance and correlation coefficient?

Q: The accompanying data represent the pulse rates​ (beats per​ minute) of nine students. Treat the…

A: We have given that, The data set is,  Students (xi)  pulse or frequency (fi)  1 77 2 60 3…

Q: the standard deviation Marks Obtained 10-20 20-30 30-40 40-50 50-60 No. of Students 2 3 14 8 60-70 3…

A: From the provided information, Marks Obtained 10-20 20-30 30-40 40-50 50-60 60-70 70-80 No. of…

Q: The figure below shows relative frequency histogram for 50 employees working in a small construction…

A: Frequency is the count or number of times an variable happen. Relative frequency is calculated by…

Q: For a Gaussian random variable with = 0 and ₁=1, what is P(| X > 2) and P[X>2]?

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Q: Are the digits of your R-number a quantitative or qualitative variable?

A: Quantitative variables : Variables consist numbers known as Quantitative. Example : Height, age,…

Q: igating the tensile strength of a new synthetic fiber that will be used to make cloth for men’s…

A: Weight % 1 2 3 4 5 15% 7 7 15 11 9 20% 12 17 12 18 18 25% 14 19 19 18 18 30% 19 25 22 19 23…

Q: In sampling, why is obtaining a representative sample important? A. Because representative samples…

A: Sample Drawn from population  Which option is the correct choice for sampling.

Q: elow are the number of cars processed each hour last week. Monday 60, 60, 71, 75, 99, 73, 74, 60,…

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Q: spam filer is designed by screening commonly occurring phrases in spam. Suppose that 60% of email is…

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Q: Tyler Apiaries sells bees and beekeeping supplies. Bees (including a queen) are shipped in special…

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Q: Does a major league baseball team's record during spring training indicate how the team will play…

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Q: Which of the following is not a branch of statistics?* a) None of the above b) Inferential…

A: It is needed to defines which is not a branch of statistics.

Q: For a binomial distribution with p = .10 and n = 100, what is the z-score corresponding to X = 16?

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Q: company's claim? State the null and alternative hypotheses for the above scenario.

A: It is given that  Population proportion, p = 35% = 0.35 Sample proportion, p^ = 40% = 0.40 Sample…

Q: f an asset declines in value from 5,000 USD to 3,500 USD  over nine years, what is the mean annual…

A: Given: Future value (F)=3500Present value (P)=5000number of years (n)=9i = the interest rate

Q: Find a formula for the general term an of the sequence assuming the pattern of the first few terms…

A: Given that, 3, 3/1, 3/4, 3/8, 3/16 ....... We will fun last term

Q: Construct a histogram and an ogive

A: Given that  Class  Frequency  15 - 18 2 19 - 22 5 23 - 26 4 27 - 30 5 31 - 34 4

Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 100…

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Q: The asset turnover ratio (ATR) is the ratio of a company's revenues to the value of its assets…

A: The formula of CV is,

Q: Question 15 Now you areweryed P Play question Select one: O a. z=0 O b. Az = Px O c. az = ax O d.…

A: