Find these probabilities of the monthly payment selected randomly. Enter the final answers as decimals rounded to at least four places. Round intermediate z-value calculations to two decimal places. P(x> 1430) = P(x<1430) =

Q: Suppose that a company makes light bulbs with a mean life of 310 hours, and a standard deviation of…

A: Given,  Mean μ = 310 Standard deviation σ = 47 Let x be hours a light bulb last

Q: sample has a mean of M = 53 and a standard deviation of s = 11. For this sample, find the z-score…

A: From the given information, X=53s=11X =39 Thus,

Q: Itemized Charitable Contributions The average charitable contribution itemized per income tax return…

A: Given, μ=792σ=100 Here,…

Q: You may need to use the appropriate technology to answer this question. Investors commonly use the…

A: Let FUND B is sample 1.  S1 = 18.9 S2 = 15.0 n1 = n2 = 60

Q: Suppose that the unadjusted seasonal factor for the month of April is 1.10. The sum of the 12…

A:

Q: Pax World Balanced is a highly respected, socially responsible mutual fund of stocks and bonds.…

A: Given Information: Pax World Balanced: Mean x¯=9.70% Standard deviation s=13.95% Vanguard Balanced…

Q: Pax World Balanced is a highly respected, socially responsible mutual fund of stocks and bonds.…

A: Given that, Pax World Balanced: x = 9.70%; s = 13.95%Vanguard Balanced Index: x = 8.88%; s = 12.35%…

Q: (c) Find the margin of error. Round the answers to at least four decimal places, if necessary. The…

A: The values are .

Q: Fill in the missing values in the table. Round your responses for the expected frequencies to two or…

A: To fill the missing  values.

Q: Net working capital 400 Debt 1000 Net Fixed assets 1600 Equity 1000 Total assets…

A:

Q: Provide an appropriate response. Construct a 95% prediction interval for y given x = 2.5, y = -2.5x…

A:

Q: Alex Moore is 43 years old and has accumulated $78,000 in his self-directed defined contribution…

A: Given thatCurrent age = 43Current accumulated balance of the retirement plan = $78,000Annual…

Q: Use the table to answer each question. Note: Round z-scores to the nearest hundredth and then find…

A: We have to find given probability.

Q: Financial analysts who make forecasts of stock prices are categorized as either​ "buy-side" analysts…

A: Given data:   ​Buy-Side Analysts (X) ​Sell-Side Analysts (Y) Mean μx=0.84 μy=−0.06 Standard…

Q: According to the Internal Revenue Service, income tax returns one year averaged $1,332 in refunds…

A: Amounts owed or due on tax returns are normally distributed

Q: New-Home Prices If the average price of a new one-family home is $246,300 with a standard deviation…

A: Given Information: Mean =  $246,300 Standard deviation = $15,000 To find the minimum and maximum…

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard…

A: Let "X" be the IQ score of the adults.

Q: Assume the average number of fatal crashes caused by sleep-deprived drivers each year is 2,000.…

A: It is a problem of normal distribution in which we have to find out the number of fatal cases in a…

Q: According to the Internal Revenue Service, income tax returns one year averaged $1,332 in refunds…

A: (a)   Obtain the proportion of tax returns show a refund greater than $2000. The proportion of tax…

Q: A bank has invested $500M in an investment whose annual standard deviation is 0.2. Compute the 1%…

A:

Q: uan makes a measurement in a chemistry laboratory and records the result in his lab report. The…

A: Given: Sample size n=4 Standard deviation σ=10 milligrams

Q: Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores…

A: Given information Mean = 100 Standard deviation = 15 P(X &gt; x) = 0.65 P(X &lt; x) = 1 – 0.65 =…

Q: Suppose that the lifetimes of a certain kind of light bulb are normally distributed with a standard…

A:

Q: The amount of annual rainfall in a city over the past 100 years follows a normal curve with average…

A: The objective of this question is to find the percentile of the rainfall distribution for an annual…

Q: In a population of exam scores, a score of X = 88 corresponds to z = 2 and a score of X = 79…

A: From the provided information, A score of X = 88 corresponds to z = 2 A score of X = 79 corresponds…

Q: New-Home Prices If the average price of a new one-family home is $246,300 with a standard deviation…

A: Given Information: Mean (x) = $ 246300  Standard deviation (s) = $ 15000

Q: The average charitable contribution itemized per income tax return in a certain state is $792.…

A: Given Mean=792 Standard deviation=103

Q: Insurance companies make bets. They bet that you’re going to live a long life. An insurance company…

A: GivenDeath policy:-Mean(μ)=10000standard deviation(σ)=1000Disability policy:-Mean(μ)=5000standard…

Q: please answer in text form and in proper format answer with must explanation , calculation for each…

A: Step 1: It is assumed that the population standard deviation of monthly rate of return is σ.It is…

Q: Mr. and Mrs. Trump have applied to the Trustworthy Insurance Co. for insurance on Mrs. Trump's…

A: Answer:- Given, The tiara is valued at $97,000.  Trustworthy estimates that the jewelry has a 2.6%…

Q: For each problem, write which test you used in your calculator, draw the graph, calculate pvalue,…

A:

Q: Approximately % of the days in February have minimum temperatures below freezing. (Round to the…

A: It is given that  Mean, μ = 27 Standard deviation, σ = 6 Z-Score, Z = ( X - μ )/σ

Q: Fill in the blank. The yearly rate of return on the Standard & Poor's 500 (an index of 500 large-cap…

A: The provided information are:

Q: Suppose the distributions of arrival and service times were normal instead of exponential.  Let the…

A: The objective of this question is to estimate the long-run average number of people that would be in…

Q: A mechanic sells a brand of automobile tire that has a life expectancy that is normally​…

A: Given data is Mean(μ)=26000standard deviation(σ)=2100