2. Let X ~ N (2856,16) a) What is the standard deviation of x? b) Calcuate P (X>7)

Q: A test was given to a group of students. The grades and gender are summarized below A Male 16 19 14…

A: A B C total male 16 19 14 49 female 20 11 2 23 total 36 30 16 80

Q: Among 38 to 43-year-olds, 37% of them say they have called a talk show well under the influence of…

A:

Q: 5.25 Voltage sags and swells. Refer to the Electrical Engineering (Vol. 95, 2013) study of the power…

A: As per our guidelines we are supposed to answer only 3 sub-parts of any questions so i am solving…

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Q: 12. Cards: Suppose you and a friend are playing cards and you are each dealt 4 cards. You have a 10,…

A: Given data: We know that Total cards in standard deck of card = 52 You and friend dealt with 4 card.…

Q: In a public opinion survey, 60 out of a sample of 100 high-income voters and 40 out of a sample of…

A: given data  α = 0.05n1=100x1=60n2 = 75x2 = 40claim: p1 ≠p2

Q: Based on the data shown below, calculate the regression line (each value to one decimal place) ý = X…

A:

Q: For a sample of size 36, the standard deviation of the sample mean is 50. In order to cut this…

A: Sample size (n)= 36 Standard deviation = 50   Now,   If standard deviation = 20  Sample size = ?

Q: A factorial experiment involving two levels of factor A and three levels of factor B resulted in the…

A: The data shows the two levels of factor A and three levels of factor B.

Q: 6. A lightbulb will work until failure. Being a cheap Chinese import the lightbulb has a 0.001…

A: (a) Probability distribution function for the given Geometric distribution : Let p be the…

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A:

Q: P(being female or not being frequently involved) = (Round to the nearest thousandth as needed.)

A: P( being female or not being frequently involved)=?

Q: After running a linear regression with 1-factor, with the market premium, if beta is positive, then?…

A: A linear regression is considered with 1-factor, with the market premium.

Q: he probability that a house in an urban area will be burglarized is 4%. If 36 houses are randomly…

A: It is given that  P( burglarized ) = p = 4% = 0.04 Sample size, n = 36

Q: How large a sample should be selected to provide a 95% confidence interval with a margin of error of…

A: GivenConfidence level=0.95Margin of error(E)=10standard deviation(σ)=40

Q: Provide an appropriate response. Classify the statement as an example of classical probability,…

A: Given that:- Classify the statement as an example of classical probability, empirical probability,…

Q: Suppose a life insurance company sells a $160,000 1-year term life insurance policy to a 20-year-old…

A: The question is about application of discrete prob. distribution Given : Prob. of female survives (…

Q: A survey found that women's heights are normally distributed with mean 63.3 in. and standard…

A: men height:normal distributionμ = 63.3σ = 3.3height of door = 55.8 inch

Q: Which type of trader is said to pay for risk mitigation? O Speculator O hedger O arbitrageur

A:

Q: 18. DETAILS MY NOTES ASK YOUR You have completed 1000 simulation trials, and determined that the…

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Q: K Determine the required value of the missing probability to make the distribution a discrete…

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Q: What is the probability that a standard normal variable will be equal to -0.68? .2483 000 1 0 .7517…

A: given data  standard normal distribution Z~N(0,1) P(Z=-0.68) = ?

Q: Find the value of the test statistic for class. (Round your answer to two decimal places.) Find the…

A:

Q: What is the probability of finding an H2O based compound with a blue label in a storage facility of…

A: Probability is the measure of likelihood of an event happening. Event includes all the possible…

Q: 2. You are allowed to play a game with the following rules. You pay $1 to flip a fair Quarter,…

A: 3 coin : One coin= 2 outcomes (H or T) H= Head  T=Tail   Possible outcomes :  2³ = 8…

Q: Salary of Full Professors The average salary of a male full professor at a public four-year…

A: given data  normal distribution male professor, μ = 99685σ = 5200normal distribution.70th percentile…

Q: = Let X and Y be independent Bernoulli(1/2) random variables. Let Z : (Y – X)². What is the…

A:

Q: 17.20 Use multiple linear regression to fit O 2 21 X₁ X₂ y O O 14 1 2 11 2 4 12 0 4 23 1 6 23 2 6 14…

A:

Q: A data series has the following x and y values. What is the predicted value when the x-value is…

A: Given data is x-values y-values 1 5 2 13 3 25 4 37 5 45 6 50

Q: 5. If Mo is the mode of all original observations and we add any constant to all original…

A: Given that  We have to determine the given statement is true or false.

Q: According to reports by interns to an employment website, the mean monthly pay of interns at Company…

A: The answer is shown below.

Q: In a research report, Richard H. Weindruch of the UCLA Medical School claims that mice with an…

A: The question is about hypo. testing Given : Popl. mean life span of mice ( μ ) = 40 months Randomly…

Q: The data in the following table show the association between cigar smoking and death from cancer for…

A: Total = 139,235 Probability= favorable/total

Q: The table shown to the right gives the national average pupil-teacher ratio in public schools over…

A: a. Suppose x defines the year since 1992 (independent variable) and y defines the average number of…

Q: Costs are rising for all kinds of medical care. The mean monthly rent at assisted living facilities…

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Q: A national survey found that 41% of adults ages 25-29 had only a cell phone and no landline. Suppose…

A: Given information: A national survey found that 41% of adults ages 25-29 had only a cell phone and…

Q: Provide an appropriate response. For the dot plot below, what is the maximum

A: Question.  For the dot plot below, what is the maximum and what is the minimum entry?

Q: A school administrator wants to see if there is a difference in the number of students per class for…

A:

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: given data standard normal distributionZ~N(0,1)we have to find P(Z>-1.55) = ?

Q: For each of the following, list the sample space and tell whether you think the events are equally…

A: Equally likely events: equally likely events are events that have same theoritical probability of…

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Q: e of use of insulin to the rest of the nation. f) If the researcher wanted to halve the margin

A: A medical social researcher wishes to investigate the proportion of Type II diabetic patients in a…

Q: A survey found that women's heights are normally distributed with mean 62.5 in. and standard…

A: Suppose the random variable X defines the height of men.

Q: Find the probability of the indicated event if P(E)=.20 and P(F)=.45 Find P(E or F) if P(E and…

A: P(E) = 0.20 P(F) = 0.45 P(E or F) = ? P(E and F ) = 0.15

Q: 7. Suppose you have a bin of Tennis Balls, 60 are Penn brand and 40 are Wilson brand. You want to…

A: Given: Number of Penn brands = 60 Number of Wilson brands = 40 Sample size n = 9 Formula Used:…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.8 and a standard…

A: Answer: - Given normally distributed with mean(μ) =97.8 Standard deviation (σ) =19.8 Find P(X…

Q: Below,n is the sample size,p is the population proportion of successes, and X is the number of…

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Q: You may need to use the appropriate technology to answer this question. Consider the experimental…

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Q: Would observations or interviews be more appropriate to research the following topic? How veterans…

A: Topic :  How veterans find employment after exiting military service  Observations : face…

Q: ng continuity correction, probability of getting greater than 60 successes. P(x=60) P(x>60)…

A: Continuity correction is useful when a continuous probability distribution like normal distribution…