When using the Central Limit Theorem, what is the "magic number" for sample size that allows you to use the C.L.T even if the population is not normally distributed?

Q: This is a chart with Temperature Anomalies and Time, what does it indicate about global warming if…

A: Introduction: It is required to identify what the given information regarding Temperature Anomalies…

Q: Only 12 men have walked on the moon.  The average time these men spent on the moon was 43.92 hours.…

A: Sample: A smaller group of individuals taken from the population is called the sample. Statistic: It…

Q: Consider Ho: = 31 versus H₁: #31. A random sample of 36 observations taken from this population…

A: From the provided information, Population standard deviation (σ) = 9 Sample mean (x̄) = 27.70 Sample…

Q: Suppose a hypothetical CBOT 13-year U.S., semiannual payment 6% coupon Treasury note futures…

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Q: Given that the rank correlation coefficient for 19 pairs of data is rs = 0.369, test the claim that…

A: Given, r critical is 0.369 Level of significance is 0.05 and sample is 19. Degree of freedom is = n…

Q: A process produces strings of Christmas tree lights that historically have experienced a defective…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Question: A study to assess the attitudes of accountants toward advertising their services involved…

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Q: The lifetime of LCD TV sets follows an exponential distribution with a mean of 100,000 hours.…

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Q: On weeknights, the average number of hours of sleep per night for adults 55-84 years old is 7.0.…

A: Comment: As per the our company guidelines we are supposed to answer only three subparts. Kindly…

Q: An automobile insurer has found that repair claims are Normally distributed with a mean of $940 and…

A: Given information- Population mean, µ = $940 Population standard deviation, σ = $900 Let, X, be the…

Q: Complete the class frequency table below. Class interval 6-10 11-15 16-20 21-25 26-30 Total Class…

A: The data are arrange in increase order and the increase order are: 6, 7, 8, 10, 10, 11, 11, 11, 11,…

Q: Suppose a random sample of size n = 100 has been selected and the sample mean is found to be x̄ =…

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Q: State if you would retain or reject the null hypothesis 7. p>.05 8. p<.05 9. critical value = +…

A: Given that  P-value , critical value and test statistic We have to check which is reject or retain.

Q: need help with question (d

A: Given that X~U(a , b) a=0   , b=2

Q: Question: A test of English grammar was given to year 10 students in three different schools in…

A: It is given that 10 students in three different schools in different region were given test of…

Q: Suppose you have joint random variables X and Y. It is found that COV(X,Y)= -0.9, Var(X) = 4 , and…

A: Solution-: Given: Cov(X,Y)=-0.9, Var(X)=4, Var(Y)=2 We want to find correlation coefficient =?

Q: How do you find what "a" is?

A: It is given that the mean is 270.2 and the standard deviation is 17.8.

Q: Using the expanded empirical rule, what is the probability in decimal form that a randomly chosen…

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Q: Use the frequency distribution shown below to construct an expanded frequency distribution. High…

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Q: The American Veterinary Association claims that the annual cost of medical care for dogs averages…

A: Let d denote the difference in costs and it follows a Normal distribution with mean of μ=-$20 and…

Q: The time it takes for Dr. Matos to mark a single midterm test is normally distributed with a mean of…

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Q: Concrete blocks are produced in lots of 1000. Each block has probability of 0.90 of meeting a…

A: Let X be the random variable that denotes number of blocks that meets specification X~Binom(n,p)…

Q: This is a chart with Temperature Anomalies and Time, what does it indicate about global warming if…

A: The regression equation is y = -0.0001x - 0.0064, where x defines the independent variable time and…

Q: The F ratio in ANOVA is a ratio of: a. two or more sample means b. the two sample means c. two…

A: Since we know that  F ratio in ANOVA is a ratio of two variances

Q: A survey found that women's heights are normally distributed with mean 62.1 in. and standard…

A: given data,normal distributionwomen's μ=62.1σ=2.2men'sμ=69.5σ=3.2we have  to answer subpart b for…

Q: Suppose Z follows the standard normal distribution. Calculate the following probabilities using the…

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Q: The student's weighted mean score is (Simplify your answer. Round to two decimal places as needed.)

A: Given that  x Weighted (w) w*x 88 35 3080 89 5 445 90 10 900 91 5 455 99 45 4455…

Q: The mean consumption of water per household in a city was 1244 cubic feet per month. Due to a water…

A: According to the given information in this question We need to apply z test for one population mean

Q: if the probablity of a n outcome A does NOT influence the probability of an outcome B then A and B…

A: If there are two outcomes A and B.

Q: The data shows that the Tigers won 8 of the 20 games, or 40%.   Comment on the accuracy of the…

A: Given The data shows that the Tigers won 8 of the 20 games, or 40%.

Q: Problem 10. Verify by direct calculation that in the least squares analysis of a completely ran-…

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Q: 5. Hillstone's Restaurant in Winter Park determined that the amount of money spent weekly on…

A: A per our guidelines we are suppose to answer only one question5)GivenMean(μ)=1030standard…

Q: The median home price in Mahwah, NJ is $609,383.  The mean home price in Mahwah, NJ is $1,074,450.…

A: Here from the given information we want to know the shape of the distribution.

Q: R2.38. Gasoline Since clean-air regulations have dictated the use of unleaded gasoline, the supply…

A: Given information: Year Gallons 1984 150 1988 124 1992 104 1996 76 2000 50

Q: mean of 100 and a standard deviation of 15. Click to view page 1 of the table. Click to view page 2…

A: Given that.   X~N( μ , ?)   μ=100     , ?=15   Z-score =( x - μ )/?

Q: pressure (SBP) during the test was 118.3 mm HG with a standard deviation of 9.9 mm HG. Construct a…

A: Given that  Sample size n =14 Sample mean=118.3 Standard deviation =9.9

Q: An original population of scores with a mean = 50 and SD = 6 is standardized to create a new…

A: given data  1 represents original population 2 reperesents new distributionμ1 = 50μ2 = 80σ1 = 6σ2 =…

Q: What is the 90% confidence interval for the number of chocolate chips per cookie for Big Chip…

A: It is given that Sample size n = 61 Sample mean M = 8.3 Sample SD s = 2.4 Level of confidence = 90%

Q: Consider the distribution of largest variance on an interval of length 0.6726. Suppose the mean of…

A: Empirical rule : 68 - 95 - 99.7 rule    Means : 68% values lie within 1 standard deviations 95%…

Q: The university administrator wants a quick estimate of the average course size, i.e. how many…

A: The university administrator wants to estimate how many students are enrolled in one course on…

Q: The proportion P residence in a community recycles traditionally been 70%. Policymaker claims of the…

A: Given that  Claim : Policymaker claims of the unfortunate less than 70% now that one of the…

Q: Assume that a sample is used to estimate a population mean μμ. Find the 99% confidence interval for…

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Q: Suppose you have two random variables, X and Y, where = 4, 5, 6, 7, 8 and y = 3, 4, 5. Let f(x, y) =…

A: Given Information: There are two random variables X and Y. where, x=4,5,6,7,8 and y=3,4,5.…

Q: 105 students at a college were asked whether they had completed their required English 101 course,…

A: Givensample size(n)=105x=62confidence level=90%

Q: You are interested in finding a 98% confidence interval for the average number of days of class that…

A: Given data is12,5,7,4,6,9,11,11,9,8,5,9,10,11

Q: What proportion of sample statistics in a sampling distribution do you expect to have 95% confidence…

A: The 95% confidence interval for a population parameter μ is μ±1.96×SE.

Q: (b) Use the 95% rule and the standard error SE = 0.028 to give an interval which contains roughly…

A: Empirical rule explain the spread of data in the normal distribution. It satisfy the three ranges of…

Q: A hospital is testing patients for Covid daily. The probability that a patient has covid is 34%.…

A: Given that  Probability of success p=0.34 The 1st patient to test positive for covid will be found…

Q: 3. The following are numbers of text messages sent last week by the cellular phone users on one…

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Q: Please use the accompanying Excel data set or accompanying Text file data set when completing the…

A: Given 3.775302 4.217981 4.030324 4.639692 4.139665 4.824257 4.268119 4.584193 4.395575 4.930027…