H.W(2) For the data below: 11,16,13,17,19,20,22,22,23,25,26,26,27,28,30,31,32,36,37,42 Start from class limit (10-14). Create a frequency table. Plot histogram and polygon 3. Plot Ascending and descending cumulative frequency.

Q: The heights of 18-year-old men are approximately normally distributed with mean 68 inches and…

A: The random variable X is the heights of 18-year men It is normally distributed. The mean is 68…

Q: A random variable X maps the outcome of a pair of dice to real numbers with the rule ∣X(a,b)=∣a−b∣,…

A: Xa,b=a-b, Ya,b=a-b

Q: The 160 heights of males from a data set of body measurements vary from a low of 150.0 cm to a high…

A: Here given  Maximum value = 196.1cm Minimum  value = 150 cm

Q: Shown to the right is a certain population for selected years between 1950 and 2005, Use the table…

A: Note: As only three subparts are provided here, answer has been provided for the same.   The data…

Q: What kind of distribution is represented in this graph? Negative skew Bimodal Positive skew Uniform…

A: We have given the graph we have to the kind of distribution in the graph

Q: A regression and correlation analysis resulted in the following information regarding a dependent…

A: Given that, ∑xi=90∑yi=170n=10∑(xi-x¯)(yi-y¯)=466∑(xi-x¯)2=234 ∑(yi-y¯)2=1434 ESS=505.98 To find the…

Q: The table below gives the number of hours spent unsupervised each day as well as the overall grade…

A: The data set are :- X:- 0, 1, 1.5, 2.5, 4, 5.5, 6 Y:- 98, 86, 85, 83, 80, 78, 67 Then,

Q: If the standard error of estimate S = 20 and n = 10, then the sum of squares for error, SSE, is: 400…

A:

Q: A major research study concluded that the mean number of times that adolescents had engaged in…

A: The question is about hypo. testing Given :  Popl. mean no. of times that adoles. had vanda. during…

Q: In a survey of 1075 people, 779 people said they voted in a recent presidential election. Voting…

A: The following sample information is provided: The sample size, n=1075. The no. of sample…

Q: The table below gives the list price and the number of bids received for five randomly selected…

A: From the provided information, Price in Dollars 106 108 117 181 193 Number of bids 10 15 16 17…

Q: (d) Compare the margins of error for parts (a) through (c). As the confidence levels increase, do…

A: Sample size n=30 Sample mean x¯=138.1 Population standard deviation σ=41.3

Q: A marketing researcher wants to estimate the mean amount spent per year (S) on a web site by…

A: Sample size (n)=130 Sample mean x-=56 Sample standard deviation =55  Population mean =47 We have to…

Q: associated with a particular manufacturing volume. Consider the following sample of production…

A: Production Volume Total Cost 400 4000 450 5000 550 5400 600 6000 700 6400 750 6900

Q: Provided below are summary statistics for independent simple random samples from two populations.…

A: The given values are: x¯1=11,s1=2.5,n1=15 and x¯2=14,s2=2.2,n2=15.

Q: A study was being conducted to see if people who have no college degree have a lower mean salary…

A: The question is about hypo. testing Given : Randomly selected no. of people who do not have college…

Q: Question (8) Suppose that four observations are taken at random from the normal distribution with…

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Q: Find the following probabilities: SHOW GRAPHS a. P(Z21.7) b. P(Z2-0.95)

A: A standard normal distribution, also known as the Gaussian distribution or the bell curve, is a…

Q: Suppose thirty-nine communities have an average of x = 122.1 reported cases of larceny per year.…

A: The sample size is 39, the sample mean is 122.1 and the population standard deviation is 37.4.

Q: For this problem, carry at least four digits after the decimal in your calculations. Answers may…

A: (a) The value of the sample proportion is obtained below as follows:   From the information, given…

Q: QUESTION 3. VOTER SUPPRESSION. A few months before an election, the NASTY party, which controls the…

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Q: A random sample of 8 students had the following intelligence quotients (IQ's). 70, 120, 110, 101,…

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Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 417 green peas…

A: sample size(n)=417 x=152 confidence level=95% sample proportion(p^)=xn=152417≅0.365

Q: S = 1,229 1,180 1,222 1,201 1,268 1,316 1,275 1,317 1,275 (a) Use a calculator with mean and…

A: 1259,1180,1222,1201,1268,1316,1275,1317,1275  Sample size n =9

Q: The following table lists the birth weights (in pounds), x, and the lengths (in inches), y, for a…

A: The independent variable is birth weight, x and the dependent variable is length, y.

Q: Construct the indicated confidence interval for the population mean using the t-distribution. Assume…

A: The given values are c=0.98,X¯=12.9,s=0.72,n=15.

Q: Run a regression analysis on the following bivariate set of data with y as the response variable. X…

A: X Y 94.1 46.4 88.3 46.1 66 25.2 59.5 30.7 84.7 45.3 100.4 33.1 88.1 39.6 79.2 42.9…

Q: Use the rule-of-thumb test to check whether a normal distribution (with the same mean and standard…

A: n=20, p=0.6

Q: the appropriate ap this qu Given are five observations for two variables, x and y. (Round your…

A: Given X Y 1 4 2 8 3 4 4 10 5 14

Q: uring the month of January 2017; total of a pan uppose we randomly sample just 100 of these flights.…

A: Given  The population proportion of flights that had a departure of delay of more than 10 minutes is…

Q: Jobs and productivity! How do retail stores rate? One way to answer this question is to examine…

A: The data shows the annual profits per employee for companies in retail sales.

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Q: QUESTION 1. VOTER PARTICIPATION AND LOYALTY. Fill the chart below and determine which candidate wins…

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Q: Suppose that in a small village about 90% of the residents are of Hawaiian ancestry. Let n=1, 2, 3,……

A: let n be the number of people you must meet until you encounter the first person of Hawaiian…

Q: Can you explain how you find the p-value of the test statistic

A: The test statistic is -2.25 and the degrees of freedom is 80.

Q: (a) Sketch the normal curve ("bell curve") listing all values 3 standard deviations from the mean in…

A: Let X be the random variable of the speed of automobiles on an expressway during rush hour. X~N(μ=62…

Q: Construct hypotheses based on a given observation and determine if a given scenario is using…

A: There are two ponds on Kelly's farm. A pesticide is sprayed around one pond to get rid of ants.…

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

A:

Q: 8. A basket contains 8 red apples and 6 yellow apples. A sample of 3 apples is drawn withou…

A: Here given that ,  There are total no of apples = 8 +6 = 14. No of red apples = 8 No of yellow…

Q: 1. The initial size of a virus culture is 6 units, and it triples its size every day. Find the…

A: The general term of a geometric sequence is given by the formula: an=a1·rn-1 Where: aₙ represents…

Q: Variable Intercept DF 1 AGRICULTURE 1 FOREST Source Model Error Lack of Fit Pure Error The REG…

A: The SAS output for the multiple linear regression is given.

Q: A credit card company claims that the mean credit card debt for individuals is greater than $4,900.…

A: Sample size, n=30 Sample mean, x¯=5058 Sample sd, s=575 α=0.05

Q: Suppose your math teacher reports the following information about Test 2 scores: the mean was 64 and…

A:

Q: ou pick 4 cards from a deck without replacing the card each time before picking the next card . What…

A: given data, You pick 4 cards from a deck without replacing the card each time before picking the…

Q: 9 independent moisture measurements were made of the timber lot. The average of the measurements was…

A: To construct a confidence interval for the average moisture content of the lumber lot, we can use…

Q: Determine if the following statements are true or false. If it’s false, state why it’s false and how…

A: Here use basic of confidence interval and statistical error.

Q: Please no written by hand solution and no img In a certain town a survey organization took a simple…

A: It is given that: The sample size, n=225; the sample mean (in $), x¯=390000. The population mean,…

Q: A researcher wanted to determine if carpeted or uncarpeted rooms contain more bacteria. The table…

A: Let the samples be taken randomly Here, there are two samples that were taken independently.  Also,…

Q: Dave's wardrobe contains 10 T-shirts, of which 5 are gray. Dave selects a T-shirt at random. What…

A: Probability = Favorable / Total  Given information :  Dave's wardrobe contains 10 T-shirts  Total =…

Q: sume that females have pulse rates that are normally distributed with a mean of μ = 72.0 beats per…

A: Mean (μ)=72.0  standard deviation (σ)=12.5 a) P(X<76)=0.6255 b) sample size (n)=16   Find…