What is the sample size of a certain study if the population size is 1,000,000 and 10% margin of error are expected

Q: june, an investor purchased 250 shares of orcales(an information technology company) stock at $23 pe...

A: We have given that data  weight w1=250 , w2=360 and w3=510 Weight average x1=23, x2=23 and x3=29

Q: igure 1 shows the results of the statistical test without interaction term between Region and Design...

A: Given:

Q: The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed,...

A: Given1)Ha:μ≥7H0:μ<7

Q: Just answer question 7  QUESTION 5 According to a recent survey, 35% of respondents drive Japanese-m...

A: 7)Givenp=0.35n=15Let "x" be the no. driving a Japanese -made carx~Binomial(n=15,p=0.35)p(X=x)=(nx)×p...

Q: your basketball team is playing a series of 5 games against your opponent the winner is those whonwi...

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Q: The management of Madeira Computing is considering the introduction of a wearable electronic device ...

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Q: Arrange the data using stem and leaf diagram. Construct the Frequency distribution table

A: here given total 50 observation  in stem leaf diagram 1|2 key is for 12 (example)  

Q: A Bihomial probability is given. Write the probability in words. Then, use a continuity correction t...

A: Solution: Let X be the number of successes in a fixed number of trials n.   

Q: V1 = 2, show that the significance level of F corresponding to a - (2/v2) _ aidu significant probabi...

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Q: 8. P(-0.9 <Z < 0.19)

A: (8) z be a standard normal curve.z~N(μ,σ)where   ,  mean(μ)=0               standard deviation(σ)=1f...

Q: For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. (Rou...

A: Given : degree of freedom, df= 16

Q: The water and sewage service company of a city in the country selected 120 clients, at random, who u...

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Q: (1) With a known population mean of 50 and a known standard error of 4, what is the probability of s...

A: Given that  X~N( μX̄ = 50 , ?X̄ =4)  μX̄ = 50 , ?X̄ =4  

Q: Let Y, X be independent and square-integrable random variables, and let Z = max(Y + X, 0) Show that ...

A: Consider, X and Y are independent and squared integrable. So. Z= max (Y+X, 0)    

Q: Kindly answer letters d, e and f only.

A: Given: Temperature Converted sugar 1 8.1 1.1 7.8 1.2 8.5 1.3 9.8 1.4 9.5 1.5 8.9 1....

Q: Use the following description for Questions 5-6. Three different washing solutions are being compare...

A: Given three different washing solutions are being compared to study their effectiveness in retarding...

Q: The following the distribution of persons according to different income groups Income (in 1000) 0 - ...

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Q: Suppose Chipper Jones knows his chance of reaching base during any particular at bat is .350. If he ...

A: Binomial distribution is given by

Q: What I Can Do This time, it is your turn to shine. Answer the problem below. The households of a loc...

A: Random variable : A random variable is a mathematical representation of a number or object that is s...

Q: The net weight (in oz) of a dry bleach product is to be monitored by F and R control charts using a ...

A: a.) To setup  and R control chart Step:1 First we compute means of sample1, sample 2 -----Sample 20 ...

Q: A factor in determining the usefulness of an examination as a measure of demonstrated ability is the...

A: The null and alternative hypotheses are: H0:σ=60 H1:σ≠60

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

A: It is given that the mean is 156 lb and the standard deviation is 31.5.

Q: A random sample of 110 adult women aged 18 years or older and an independent random sample of 115 ad...

A: c) Health

Q: Find the area of the shaded region. The graph to the right depicts lIQ scores of adults, and those s...

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Q: Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good b...

A: It is assumed that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same d...

Q: a. What is the frequency function (pmf) of X? b. Compute P(X > 10). c. Compute P( 6 ≤ X ≤ 10).

A: HERE AS PER POLICY I HAVE CALCULATED FIRST 3 SUBPART PLZ REPOST FOR REMAINING  Of all customers purc...

Q: A European growth mutual fund specializes in stocks from the British Isles, continental Europe, and ...

A: Given: Mean = 1.2, s = 1.3

Q: The random variable Y is the number of persons living in a randomly selected occupied housing unit. ...

A: Given, random variable Y: the number of persons livingprobability distribution is; y P(Y=y) y.P(Y...

Q: where B, and B, are the intercept and slope parameters, respectively. Assume that E(u) = 0. Note tha...

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Q: Parliament contains a proportion p of Labour Party members, incapable of changing their opinions abo...

A: Probability : Probability may be a discipline of arithmetic involved with numerical explanations of ...

Q: 2. A manufacturer of flashlight batteries claims that the average life of his product will exceed 40...

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Q: Cholesterol levels for women aged 20 to 34 follow an approximately normal distribution with mean 185...

A: Given , Let , random variable X be the Cholesterol levels for women aged 20 to 34  The random variab...

Q: an height of women in a country (ages 20- 29) is 64.4 inches. A random sample of 60 women in this ag...

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Q: Using non-equal probability for priors: p(k=1)=p1 and p(k=2)=1−p1. If we obtain posterior distributi...

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Q: The life span of a 30-watt LED light is known to be normally distributed with o = 20 hours. A random...

A: Confidence interval : A central tendency could be a central or typical worth for a likelihood distri...

Q: e. Show that Cov(XY) Var(X) Hint: Use computational formulas of Cov(X,Y) and Var(X). You may begin y...

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Q: Direction: Read the following items carefully. WRITE the letter that corresponds to your answer and ...

A: Explanation: 1) Mean: A mean is the simple mathematical average of a set of two or more numbers. 2) ...

Q: A management is faced with the problem of choosing one of three products for manufacturing. The pote...

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Q: A drug tester claims that a drug cures a rare skin disease 85% of the time. The claim is checked by ...

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Q: The error involved in making a certain measurement is a continuous rv X with the following cdf. x< -...

A: the error involved in making a certain measurement is a continuous rv X with the following cdf,F(x)=...

Q: Theorem 17-2. Let {T„} be a sequence of estimators such that for all ee 0, and (ii) Vare (T„) →0, as...

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Q: Given : Total of the product of deviations of X and Y series = 3,044 Number of pairs of observations...

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Q: The probability mass function of a discrete random variable is: 37-x A G for x = 1, 2, ., 14 (a) Com...

A: Solution-: We have, P(X)=a*(15)x(32)7-x   for x=1,2,3,.........14 We compute (a) P(3&lt;X≤9)=? (b) P...

Q: Find the probability P(−1.1 < z < 0.3) using the standard normal distribution. A.) 0.7411 B.) 0.49...

A: Solution

Q: Use technology (Desmos or graphing calculator) to create a linear regression (line of best fit) to d...

A: Regression equation :   The equation is Y= a + bX, wherever Y is that the variable (that is, the var...

Q: The standard deviation of measurements of a linear dimension of a mechanical part is 0.14 mm. What s...

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Q: Obtain the two lines of regression from the following data and estimate the blood pressure when age ...

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Q: Theorem 17-2. Let {T„} be a sequence of estimators such that for all 0 e 0, and (ii) Vare (Tµ) →0, a...

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Q: the average final examination scores produced by the two methods are different if the population sta...

A: Let sample 1 for method A and sample 2 for method B. Given: n1=40, n2=36x1¯=78, x2¯=74σ1=5, σ2=5  

Q: Find the probability, P(-1 < Z < 1) for a standard normal variable Z. Find the probability, P(-2 < ...

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