Find the probabilities and the expected frequencies for the following data according to the "Law of improbable events" given by Poisson. 2 3 4 No. of mistakes No. of Printed pages 1 109 65 22 3

Q: Construct a confidence interval to estimate the proportion of U.S. adults who ate healthy…

A: HERE AS PER guidelines  I HAVE CALCULATED 3 SUBPARTS PLZ REPOST FOR REMAININING    According to a…

Q: It takes an average of 12.8 minutes for blood to begin clotting after an injury. An EMT wants to see…

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Q: Testing the potential efficacy of a powerful new drug for treating a dangerous disease. 14 patients…

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Q: 5. Which of the following Pearson correlations shows the greatest strength or consistency of…

A: From given information we know that , Correlation (r) value is near by ±1 has the greatest strength…

Q: Only 20% of registered voters voted in the last election. Will voter participation change for the…

A: Given data n = 317 X = 54 Alpha = 0.05 Using z test for population proportion

Q: Dan selected a random sample of 100 students from 1200 at his school to investigate preference for…

A:

Q: Find the value of za/2 when 1- a = .98. Explain your answer by using the standard normal curve.

A: A continuous random variable Z is said to follow Standard Normal distribution if its probability…

Q: If the decision to determine the student selected as a representative is a student who has a stable…

A: Given information: Student A Student B 70 70 70 80 100 95 90 90 80 75 75 80 80 90…

Q: ob Satisfaction Survey Assignment You will be creating 7 different scales: work, pay, supervision,…

A: Note: As per the guidelines we are allowed to solve single question when multiple questions are…

Q: 3) (4 points) Consider a population with the mean u= 51, 000 and the standard deviation o = 5,000.…

A: The random variable X follows normal distribution. We have to find the probability that the sample…

Q: Use your calculator to determine the exponential regression equation that models the set of data…

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Q: 3. State and prove the multiplication theorem for two independent random variables. Show that the…

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Q: What is: 1. 14%14 2. 5!=1 is it True or False

A: 1)  14%14=0 2) 5!=1  It is false  Because 5!=120

Q: In a random sample of sixteen different industries the percentage employment x in STEM (science,…

A:

Q: though a large.number o! tasks in the computer industry are robotic, many operations r human…

A: Given information: X Y X^2 Y^2 XY 79 93 6241 8649 7347 81 93 6561 8649 7533 79 94 6241 8836…

Q: Giving a test to a group of students, the grades and gender are summarized below   A B C Total Male…

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Q: Babies: According to a recent report, a sample of 360 one-year-old baby boys in the United States…

A: Given that  Sample Mean \bar XXˉ = 25.525.5 Population Standard Deviation (\sigma)(σ) = 5.15.1…

Q: (a) If two are selected at random to leave the room, what is the probability that they are of…

A: HERE GIVEN, A CLASS contains seven boys and eight girls  probability  = no of favorable outcomes no…

Q: process yields 10% defective items. If 100 items are randomly selected from the process, what is the…

A: Given n=100 p=0.10 Since sample size is large , we must use normal approximation of binomial…

Q: Two researchers studied the relationship of positive emotions and longevity by examining smile…

A: from the given information Archival research can be defined as the research which involves primary…

Q: The price X (dollars per pound) and consumption y (in pounds per capita) of beef were samples for 10…

A: For the given data Standard error ( Se ) =?

Q: Consider a first-price sealed bid auction of a single object with two bidders j = 1,2 and no…

A: Given: Two bidders(j)=1,2 Bidder 1's valuation (v1)=2 Bidder 2's valuation (v2)=5

Q: The price X (dollars per pound) and consumption y (in pounds per capita) of beef were samples for 10…

A: From the given data Find SSxy = ?

Q: There is growing concern over a possible causal link between consumption of diet soda and obesity.…

A: There are two independent samples which are overweight and right weight. We have to test whether the…

Q: T-Test mu Men =m T= -2.46 P=0.00 Vhich of the following is correct?

A: For men : sample size (n1) = 50 sample mean (x̄1) =  112.3 sample standard deviation (s1) =  11.7…

Q: If the sample correlation coefficient in Q1 above, were to be 0.85. Which choice provides the best…

A: Correlation coefficient measure the strength of association between the two variables. It is denoted…

Q: (a) Determine the sampling distribution of the sample mean X. (b) Find the mean E(X) of the sampling…

A: Here use basic concept of sampling distribution of sample mean

Q: s = $7.61. At 1% significance level, do the data provide sufficient evidence to conclude that this…

A: HERE GIVEN, A company collects information about retail prices of history books. During the year…

Q: Lifetime of electronics: In a simple random sample of 100 electronic components produced by a…

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Q: Assume that a simple random sample has been selected from a normally distributed population.…

A: here from given information , sample mean  = 42.4 year  sample standard deviation  = 31.5 year  n=…

Q: a) Verify that the conditions for the use of the normal model are met using the 2015 study. b) Why…

A: Given Information: Sample size n=100 Sample proportion p^=0.62 Hypothesized value of population…

Q: Consider the null hypothesis Ho : Data follows mixture model pN(41,1) + (1 – p) N (42, 4) vs H1 :…

A: Given that, Sample size n=152 Number of groups k=10

Q: Write the solution legibly. No long explantion needed. Rate will be given. A pair of dice are…

A: If there are n mutually exclusive, exhaustive and equally likely outcomes of a random experiment and…

Q: Park rangers are interested in estimating the weight (in pounds) of the bears that inhabit their…

A: From the provided information, Sample size (n) = 10 90% confidence interval for slope (17.078,…

Q: In a random sample of sixteen different industries the percentage employment x in STEM (science,…

A: In this case, the independent variable is the percentage employment (x) and the dependent variable…

Q: Please help me carry out all the checks to assess if it shows roughly normal distribution in the…

A: The objective is to determine whether the Q-Q plot shows a roughly normal distribution in the…

Q: 14. A potato chip manufacturer regularly inspects bags of chips to make sure there aren't too many…

A: A random sample of 10 bags per hour is taken, first quartile is calculated and the machine is…

Q: Problem 2 A class contains seven boys and eight girls. (a) If two are selected at random to leave…

A: HERE GIVEN  Total No of Children in classroom=15 NO Of Boys=7 NO Of Girls=8

Q: If we construct a 95% confidence interval estimate for the true proportion of all Minnesota school…

A: here given, n = 200 sample proportion  =20200 = 0.1 here for z-critical use excel command…

Q: Given are data on x= age and y= number of days after arthroscopic shoulder surgery before being able…

A: The scatter plot is used to observe the relation in between variables. It consists of data points.…

Q: Consider the function f(x)=1/x, defined on the interval 1≤ x≤ e  describe the shape of distribution…

A: A continuous random variable is a variable whose value can be obtained by measuring. A continuous…

Q: Makers of a new pain-relieving medication claim that it relieves chronic pain faster than the…

A: Given that

Q: The following results are from data that were collected from the various high schools around the…

A: H0: AVERAGE CLASS SIZE, SPENDING PER STUDENT, AND AVERAGE TEACHER SALARY are not significant. H1:…

Q: A large group of students took a physics test and the final grades have a mean of 70 with a standard…

A: The random variable X follows normal distribution. We have to find the percent of students scored 70…

Q: Q/ In the vehicle speed test, the results are given in the table below: Find 1. Arithmetic mean 2.…

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Q: Find the critical value z, needed to construct a confidence interval with level 80%. Round the…

A: We  need to construct a confidence interval with 80%.

Q: 6) The following results are from data where the dependent variable is EXPENSE FEES, the independent…

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Q: 2) A D 1 #Vehicles (x) Frequency (f) fx fx 2 3 6. 4 2 7 14 28 5 3 9 27 81 4 6 24 96 5 4 20 100 Total…

A: Given that

Q: A simple random sample of size 200 is taken from a much larger group of male wrestlers prior to a…

A: Given Information: Sample size n=200 Sample mean x¯=190 Standard deviation s=20 The average weight…

Q: 1 1. 2 3 4 $ 6 7 8 9 # of flinches wwould you describe the distrbuton, is there a kurtosis problem?…

A: From the given graph we want to know in the given graph kurtosis problem or not.