Suppose the cumulative distribution function of the random variable X is 0, x < -1.6 F(x) = 0.25x +0.4, 1.6 < x < 2.4 1,2.4 ≤ x Round your answers to 3 decimal places. Determine the following: a) P(X < 1.8) = i b) P(X > - 1.5) = i c) P(X <- 2) =

Q: Draw five cards from a deck of 52 cards without replacement. What is the probability that 3 is…

A:

Q: For numbers 13 to 15. Find the measures of position of the grouped data in Column A and B. Then…

A: Frequency distribution  Qi=L+ f*​(( i*N/4)−c.f)/h, where L is lower class boundary, f is frequency…

Q: Number of Jobs A sociologist found that in a sample of 49 retired men, the average number of jobs…

A: Given : Sample Size , n= 49 Sample Mean , x̄ =6.8 population standard deviation ,…

Q: Find the value of Z from the standard normal table such that the probability between Z and –Z is…

A: The solution is given below.

Q: The time in hours during which an electrical generator is operational is a random variable that…

A: Given : Population Mean,μ = 160

Q: e 1000 Determine the cumulative distribution function for f(x) = , where x is the time to failure of…

A:

Q: In 1996, 57% of high school teachers felt it was a serious problem that high school students were…

A: Solution Given that In 1996, 57% of high school teachers felt it was a serious problem that high…

Q: 1. Maureen's sister recommended soaking the air plants in a bowl of water once a week. Maureen's…

A: Each variable can be categorized as independent or dependent variable. Independent variable does not…

Q: From a population with a variance of 1521, a sample of 225 items is selected. At 95% confidence, the…

A: We have given that,  Variance (s2) = 1521, sample size (n) = 225 and confidence interval = 95%…

Q: (Because the number of horses varies from year to year, only the first 10 post positions are…

A: Given data

Q: The parameters of my population distribution are: µ = 20 and σ = 5. The parameters of my sample…

A:

Q: As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color…

A: From the provided information, Total cards in standard deck = 52 Each suit is split into 13…

Q: Mr. A, an owner of a particular softdrink brand claims that the average capacity of their product is…

A:

Q: The difference between the observed y-value and the y-value predicted by the linear model is called…

A:

Q: Probability of Sample Mean within +$5 and ±$15 of μ -SS μ +$5 +$15 What is the probability for $5,…

A: Given, sd=80$ and sample size=64

Q: Go to Yahoo!Finance and download data at the MONTHLY frequency for the stock Apple Inc. with ticker…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Estimate the average height(m) of all the 2019_2020 MPA/MIRD 802 from the following finite sample of…

A: We have a finite sample of 5 student's heights. The size of the population is 42. The sample is…

Q: Solve for t. e-0.92t = 0.62 Select the correct choice below and, if necessary, fill in the answer…

A: Sol:- Stepse-0.92t=0.62

Q: Jensen Tire & Auto is in the process of deciding whether to purchase a maintenance contract for its…

A: Solution: Let X =Weekly Usage ( hours) and Y = Annual Maintenance Expense ( in hundred   of dollars)…

Q: 3. Regression: Consider following data. X 3 12 6 20 14 Y 55 40 55 10 15 The estimated regression…

A:

Q: From a population with a variance of 1296, a sample of 225 items is selected. At 95% confidence, the…

A: Given,sample size(n)=225standard deviation(σ)=1296=36α=1-0.95=0.05α2=0.025Z0.025=1.96     (from…

Q: Show all your steps please and explain Do it in digital format and upload screenshots of every…

A: As Prof. N. G. Das said "Confidence interval is an interval such that the probability of the unknown…

Q: Trains arrive at a major train-station randomly and independently; the probability of an arrival is…

A: GivenMean arrival rate is 5 trains per hourλ=5 trains per hour Let "x" be no.of trains will arrive…

Q: Consider the following regression estimates (FN3) Linear regression Robust income Coef. Std. Err.…

A:

Q: What is the probability that all of the randomly selected interviewees were in favor of considering…

A: Assume that 79.5% of Americans are in favor of considering restrictions on assault weapons. Suppose…

Q: A tuatara is a reptile that is endemic to New Zealand and the sole surviving species of its order…

A: Solution is given below.

Q: 1000 health practitioners in Zambia were surveyed during the COVID-19 outbreak, of these 380 of them…

A: We have given that,  Sample size (n) = 1000 and favorable cases (X) = 380 Then,  We will find margin…

Q: (b) Find the mean. Round the answer to two decimal places. The mean is X S

A: Let X denote the binomial random variable. Given that X follows Binomial(n = 11, p = 0.2)

Q: The number of games won by a famous basketball team each year from the year 1991 to the year 2000…

A:

Q: Round your answer for the expected count to one decimal place, and your answer for the contribution…

A:

Q: linear regression equation, i.e. y=a+bx 3 4 5 9 11 y 42 38 31 28 29 b) the correlation coefficient…

A: Given data : X Y 3 42 4 38 5 31 9 28 11 29

Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1388…

A:

Q: Use logarithmic properties to write in simpler form. X In y In X

A:

Q: CLASS ACTIVITY & REFLECTION (10%) 1. A repeated-measures has been conducted to identify the effect…

A: Solution Given

Q: A simple random sample of size n=15 is drawn from a population that is normally distributed. The…

A: Given :  population mean = 22

Q: A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…

A: Given data : sample size, n =34 sample mean, x̄ = 716.2 sample standard…

Q: (c) Estimate the proportion of individuals who suffer from sleep apnea who have gum disease with 95%…

A: It is given that Sample size n = 390 Sample proportion = 0.175 The critical value of Z at 95%…

Q: Two intervals are given, A and B, for the same value of the explanatory variable. A: 99 to 115 ; B:…

A: Given: Confidence interval A = 99 to 115 Confidence interval B = 92 to 122 Formula Used: Confidence…

Q: What's T and P

A:

Q: 1. 2. 3. 23 z- or t-computed value 1.310 2.240 1.960 z- or t- critical value 1.960 2.131 2.896…

A: From the provided information, The computed values and critical values are given. The computed value…

Q: A coin-operated drink machine was designed to discharge a mean of 6 ounces of coffee per cup.…

A: From the provided information, A coin-operated drink machine was designed to discharge a mean of 6…

Q: Find the equation of the line tangent to the graph of f at the indicated value of x. f(x)=8+ Inx; x…

A:

Q: Let X~N, (1,2) μ'=(5-24) 6 5 -3 Σ= 5 7 0 -3 0 4 1. find the distribution of X, and (X₂, X₁) X₁ - X₂…

A:

Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…

A: Formula : CI= x̄ ± tα/2,df * S/√n

Q: Solve for t to two decimal places. 3= e 0.05t t≈ (Do not round until the final answer. Then round to…

A: To solve for t.

Q: was conducted. The survey only includes the number of credit cards per participant. The results of…

A: The hypothesized mean is 4.

Q: irection. Complete the table and answer the following question. The production manager at XYZ…

A: Note: Thank you for the question. Since the third subpart does not contain sufficient information to…

Q: You must estimate the mean temperature (in degrees Fahrenheit) with the following sample…

A: From the provided information, Sample size (n) = 6 Confidence level = 90%

Q: Find the value of Z from the standard normal table such that the probability between Z and –Z is…

A: We use z distribution table to find the required solution.

Q: Suppose that X, Y and Z are statistically independent random variables, each of them with a x²(2)…

A: Result: if X~χ2(n) Mx(t)=(1-2t)-n/2 If X and Y are independent then E(XY)=E(X)E(Y)