QUESTION 18 A population has a standard deviation of 16. If a sample of size 64 is selected from this population, what is the probability that the sample mean will be within ±2 of the population mean? O a. 0.6826 Ob. 0.3413 Oc. -0.6826 O d. Since the mean is not given, there is no answer to this question.

Q: 7. Starting Salaries for Business Graduates. Mi. Employment Research Institute found that starti…

A: Given claim: The mean starting salary for business majors in 2018 is greater than the mean starting…

Q: The breaking strengths of cables produced by a certain company are approximately normally…

A: claim : μ > 2180variance (σ2) = 33672.25find null and alternative hypothesis.

Q: Let X and Y be random variables where the expected value of X is 1, expected value of Y is 4,…

A: Given,E(X)=1E(Y)=4Var(X)=4Var(Y)=6and Cov(X,Y)=0.50

Q: For the following distribution, what is the highest possible score?​ X         f  20-24   2 15-19…

A: The frequency distribution table is given.

Q: a. Use these data to test whether the population mean times for mixing a batch of material differ…

A: Here we have to test ANOVA  One of the most crucial areas of statistics is called ANOVA, or Analysis…

Q: For the image below, what would you input into the graphing calculator function to find the…

A: Answer: - Given, A standard normal curve                 Find P(Z > -0.92) = ?

Q: Consider this following description of a closed economy: C = 150 +0.75 (Y-T) 1 = 90 - 30r M/P = Y -…

A:

Q: Assume that a normal distribution of data has a mean of 19 and a standard deviation of 2.Use the…

A: given data,normal distribution μ=19σ=2according to emperical rule 68%,95% and 99.7% data fall within…

Q: Let X = the time in hours between two successive arrivals at the drive-up window of a fast food…

A: We have given  λ = 10X ~ Exponential (λ )

Q: 2. Assume that the prices paid for housing within a neighborhood have a normal distribution, with…

A: Given that Mean =$100,00 & Standard deviation = $35,000

Q: Q5(viii.) Find E(X₂|X1). Q5 (ix.) Find Var(E(X₂|X1)). Q(x.) Find E(Var(X₂|X₁)).

A:

Q: Please solve b, d, and f parts.

A:

Q: Consider the sample 13, 19, 18, 20, 16, 9, 10, 7, and 8. Find the mean? Show the solution and write…

A: Given that  The data are X : 13, 19, 18, 20, 16, 9, 10, 7, 8.

Q: The shape of the distribution of the time required to get an oil change at a 20-minute oil-change…

A: Given that.   X~N( μ , ?)   μ=21.3    , ?=3.1   Z-score =( x - μ )/?

Q: Hom sample of 828 births orn babies are boys. Do th

A: Given, sample size (n)  = 828 x = 427 true proportion (p) = 0.515 significance level (α) = 0.10…

Q: 1) Match the following values as a A) discrete random variable, B) continuous random variable, or C)…

A: According to the given information, we have Statements are given in which we match the following…

Q: Research has shown at 55% of subscribers share their password with someone outside of their…

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

Q: te and interpret the coeffici 0.05 level of significance, is calories and sugar?

A: Given, Sample Calories (x) Sugar (y) Cereal 1 81 5 Cereal 2 100 3 Cereal 3 98 4 Cereal 4…

Q: X 1 2 3 4 5 6 Pr(X=x) 0.1 0.3 0.25 0.05 0.15 0.15 e.  In case someone rolls a number smaller than,…

A:

Q: A cellular phone service provider has determined the number of devices per account has a probability…

A: We know that, total probability of the distribution is equal to 1. So ΣP(Xi)= 1…

Q: The amount of potassium in food varies, but bananas are often associated with high potassium, with…

A:

Q: Suppose that X~N(μ, o2) and that P(X ≤ 5) = 0.8413 and P(X ≥ 3.6) = 0.6554, what are the values of μ…

A:

Q: Two-digit natural numbers are formed, with replacement, from the digits 0 through 9. How many…

A: In question, Given that two-digit natural numbers are formed, with replacement, from the digits 0…

Q: According to a leasing firm's reports, the mean number of miles driven annually in its leased cars…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: Q5 Suppose that X₁ and X₂ have a joint pdf zero otherwise. f(x₁, x₂) = (2/3)(x₁ + 1), for 0 < x₁ <…

A:

Q: 6 on 7 tion 8 estion 9 book ! 7 10 Q A K The data given to the right includes data from 43 candies,…

A:

Q: The following table is the quarterly seasonal indexes for the sales data of the Trending Trading…

A: Given Information: Consider the given table: Periods yt Uncentered 4-Quarter Moving Total…

Q: for the standard normal distribution find  P(z c) = 0.1779 P(z 1.06)

A: GivenP(z&lt;c)=0.7085

Q: The average number of moves a person makes in his or her lifetime is 12 and the standard deviation…

A: We have given that                                     Mean(µ) = 12 Standard deviations (σ) = 3.4X…

Q: hello. Can you explain how 0.75 was achieved? And I see how you resulted in a 1.5 as the answer…

A: Here, need to find out the probability value of P( Z &gt; 1.5 ).

Q: 1) Let X₁, X2, X3, ... Xn be a sequence of independent and identically distributed with the…

A: As per our guidelines I can solve only first 3 subparts. Kindly post the remaining subpart again and…

Q: Use a calculator or computer software to generate a normal quantile plot for the data about the ages…

A: Here we have to generate QQ plot for the above data. QQ plot is used to check whether the data…

Q: 44) The incomes of trainees at a local mill are normally distributed with a mean of $1100 and a…

A: given data,normal distribution μ=1100σ=150percentage of earn less than $ 900 a month =?

Q: You intend to estimate a population proportion with a confidence interval. The data suggests that…

A: From the provided information, Confidence level = 87.1%

Q: 296

A: As per our guidelines I can solve only first 3 subparts. Kindly post the remaining subpart again and…

Q: The Zimmerman Agency conducted a study for Residence Inn by Marriott of business travelers who take…

A: GIVEN DATA P(enjoy sight seening more than other activity) = p = 0.37sample size (n) = 120x = no. of…

Q: A bag has 5 blue marbles, 3 red marbles, and 2 green marbles. We draw two marbles, one at a time,…

A: It is given that  Blue marble = 5 Red marble = 3 Green marble = 2 Total marble = 10

Q: Consider the time it takes, in minutes, for police officers to respond to a 911 call, where a life-…

A: Given,mean(μ)=26standard deviation(σ)=5Empirical rules:1)…

Q: he mean SAT score in mathematics is 510. The standard deviation of these scores is 43. A special…

A: given data,n=60x¯=523α=0.05σ=43claim :μ&gt;510one- tailed test

Q: In a sample of 300 college seniors, 252 responded positively when asked if they have spring fever.…

A: given data,n=300x=252CI=0.95p^=xn=252300=0.84here for 95% confidence interval…

Q: Every possible probability can be written in decimal form as a number between ____ and ____.  a. 0,…

A: we have to fund range of probability values possible.

Q: A nonprofit analyst seeks to determine which variables should be used to predict nonprofit…

A: It is given that revenue a measurement of total revenue in billions of dollars as a measure of…

Q: The defect length of a corrosion defect in a pressurized steel pipe is normally distributed with…

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

Q: When she was 9 years of age, a girl did a science fair experiment in which she tested professional…

A: given data,n=247 trials x= 105α=0.10p^=xn=105247=0.4251here p=q=0.5

Q: 25 students are randomly chosen to evaluate an online learning application for a course assignment…

A: Given  n=25=sample size

Q: K When she was 9 years of age, a girl did a science fair experiment in which she tested professional…

A: given data  n = 247x = 105α = 0.10claim : p = 0.5p^ = xn = 105247 = 0.4251

Q: Help

A:

Q: Mrs. Starnes enjoys doing Sudoku puzzles. The time she takes to complete an easy puzzle can be…

A: Answer:- Given,  a Normal distribution with mean μ = 5.3 minutes and standard deviation σ = 0.9…

Q: The overhead reach distances of adult females are normally distributed with a mean of 197.5 cm and a…

A: Given that.   X~N( μ , ?)   μ=197.5     , ?=8.3   Z-score =( x - μ )/?

Q: Syndrome" (USA Today, September 29, 1999) makes the following statement: "Older women are at a…

A: