What is the total number of scores for the distribution shown in the following table?​ X    f 4    1 3    3 2    7 1    2 Select one: a. ​14 b. ​13 c. ​11 d. 24

Q: A certain state has the highest high school graduation rate of all states at 75%. a. In a random…

A: GIVEN DATA P(graduate) = p = 0.75sample size n = 10x = no. of graduatesP(x=X) =…

Q: Use SAS output for a random sample of size 20 to answer the following questions. Regression of y on…

A:

Q: Exercise 14. Peyton Manning's Colts Career Peyton Manning played for the Indianapolis Colts for 14…

A: Given: 26 33 27 49 31 27 33 26 26 29 28 31 33

Q: As the sample size ______, the standard error ______. a. Increases; approaches zero b. Increases;…

A: we have to identify true relation between sample size and standard error

Q: 4.  A standardized memory test has a mean of µ = 100 and a standard deviation of σ = 10. Answer the…

A:

Q: Annual high temperatures in a certain location have been tracked for several years. Let X represent…

A: X: 3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18…

Q: The Internal Revenue Service is studying the category of charitable contributions. A sample of 34…

A: The question is about discrete probability distribution Given : Sample no. of returns selected from…

Q: In a random sample of 50 sports cars, 34 passed the inspection on the first time through. The state…

A: To find: Are the conditions met to do so?

Q: {*** 5x - ) 2 44 1 F(x) = (a) Compute P(X < 0). x < -2 -2≤ x < 2 2≤ x is a continuous rv X with the…

A: It is given that the continuous random variable X that represents the error involved in making a…

Q: Based on a survey, assume that 43% of consumers are comfortable having drones deliver their…

A: It is given that the 43% of consumers are comfortable having drones deliver their purchases.

Q: Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is normally…

A: Given that μ=33,σ=15

Q: A sample of size n =45 has sample mean x = 56.9 and standard deviation s =9.4 Can you help me solve…

A: Given that  Sample of size n =45 has sample mean x = 56.9 and standard deviation s =9.4

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: 10. Stock J has a beta of 1, an expected return of 15%. The equity risk premium is 10%, and the…

A: The formula for the Jensen's alpha measure is given by,  Jensen's alpha = r –[rf + β ×(rm–rf)]…

Q: 8. An allegedly psychic animal's feeding behaviour is used to predict outcomes of eight soccer…

A:

Q: Assuming I am given a significance level of 0.01. After calculating my p-value, it was between 0.020…

A: The significance level is 0.01.

Q: In a simple random sample of size 35, a study was conducted to test their mean height. The mean…

A: Given Mean(x)=66.8standard deviation(σ)=2.4sample size(n)=35significance level(α)=0.05claim is that…

Q: The dividing point between the region where the null hypothesis is rejected and the region where it…

A: We will tell you above statement is true or false.

Q: a) A college principal decides to consult the students about a proposed change in the time of…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: 12 Calculate the value of the missing moving average located at A. Round off to two decimals. OA.…

A: The 3-period moving average can be calculated by taking the mean of 3 observations, starting from…

Q: The graph illustrates the distribution of test scores taken by College Algebra students. The maximum…

A: GIVEN DATA normal dustributionμ = 77σ = 15empirical rule: approximately 68-95-99.7% data fall within…

Q: Using p, q, and r as stated, write each symbolic statement in words. p: Jared plays baseball. q:…

A: Symbols meaning : ~  negative of A Λ  A and B →  if A then B

Q: For Questions 1-4, consider the following: A study is designed to determine the effect of an…

A: Given  x̄1=42.745 and x̄2=32.394

Q: How many players are below the average? How many players are above the average?

A: From the given information we find the solution.

Q: For a sample with a standard deviation of s = 12, a score of X = 42 corresponds to z = –0.50. The…

A: given data  s = 12 x = 42 z = -0.50 sample mean (M) = ?

Q: 5.30 Music file size on a tablet PC. A tablet PC contains 3217 music files. The distribution of file…

A:

Q: The length of gestation for hippopotami is approximately Normal, with a mean of 269 days and a…

A: Given Mean=269 Standard deviations=7

Q: Find the confidence interval for a Related-Samples t-test (Ch.11), given the following info: Level…

A: From the provided information, Sample size (n) = 4 SS of difference scores = 2.75 The difference are…

Q: Consider a position consisting of a K200,000 investment in Asset A and a K300,000 investment in…

A: Given : the daily volatilities of the assets A and B are 1.5% and 1.8%.

Q: If the mean time is between unscheduled maintained of lcd displays in a hospital scan facility is…

A: We have given that λ = 1/4000 Let X is a random variable shows the time ofunscheduled maintenance.…

Q: A coffee dispensing machine used in cafeterias is set to dispense coffee with an  average fill of…

A: Given: averageμ=230standard deviation(σ)=10 x follows normal distribution.

Q: In the entire population of a certain type of tree, the mean height of the trees is μ = 168.8 ft and…

A: The given mean is 168.8 and standard deviation is 43.6.

Q: Find the critical valve for 99% confidence interval using the chi square

A: It is given that  Degrees of freedom, df = 28 Confidence interval = 99%

Q: The advertising expenditure per month, in dollars, at a tourism company are given below. 1600 1800…

A: Given data: 1600 1800 2500 1500 3200 4500 6000 3200 1200 5000

Q: Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an…

A: The margin of error is 8.3 and the standard deviation is 62.1.

Q: The

A:

Q: Calculate the indicated probabilities, assuming that Z is a continuous random variable that follows…

A: Given that.   X~N( 0 , 1 )   μ=0  , ?=1 (for standard normal distribution)    Z-score =( x - μ )/?

Q: If a male passenger is randomly​ selected, find the probability that he can fit through the doorway…

A: It is given that  Mean, μ = 69 Standard deviation, σ = 2.8

Q: The life spans of a species of fruit fly are normally distributed with a mean of 36 days and a…

A: Suppose a random variable x defines the life span of a species of fruit fly.

Q: Accompany that operator’s successful, cost-effective supply chain begins to produce a new product…

A: A company that operates successful, cost-effective supply chain begins to produce a new product line…

Q: In a survey, LATTC students were asked how many hours they study per week. Their responses are…

A: The table shows the number of hours they study per week.

Q: Costs for standard veterinary services at a local animal hospital follow a Normal distribution with…

A:

Q: Suppose X~ N (23, 4). Between which two numbers would the middle 94% of all X values fall? Between…

A: given data normal distributionx~N(23,4)μ = 23σ = 4

Q: You wish to test the following claim (Ha) at a significance level of α=0.001.       Ho:μ=58.1…

A: Givensignificance level(α)=0.001The null and alternative hypothesis isH0:μ=58.1Ha:μ≠58.1sample…

Q: Assume that you want to construct a 95% confidence interval estimate of a population mean. Find an…

A: The question is about sample size estimation Given : Sample std. deviation ( s ) = 43.4 minutes…

Q: ew-Homes Prices If the average price of a new one-family home is $246.300 with a standard deviation…

A: Solution: Let X be the average price of new one family home.  X~N(μ=246300,σ=15000)

Q: Based on a smartphone​ survey, assume that 57​% of adults with smartphones use them in theaters. In…

A: The question is about sampling distribution of sample prop. Given : Popl. prop. of adults with…

Q: A developmental psychologist is interested in studying how long babies gaze at a photograph of a…

A: It is given that the data of sample size six is: 12, 15, 16, 20, 20, 27

Q: Systolic Blood Pressure Assume that the mean systolic blood pressure of normal adults is 120…

A: From the given information, the mean is 120 and the standard deviation is 5.6.

Q: who are offered admission Because Past experience shows that about 83% of the students accept, the…

A: c) The value of n is 1200 and the value of p is 0.83.