A researcher knows that number of people having a rare gene is on average 0.5 per  1000 people. Find the probability of taking a random sample of  3,000 people and finding at least 4 people having this  rare gene. Your answer should be to 4 decimal places.

Q: To draw conclusions about something that will be presented or observed based on something that has…

A: Descriptive statistics provide the summary or characteristic of the given observation or population.…

Q: From past experience, cycling’s drug testing body has found that 2% of professional cyclists have…

A: Given Information: 2% of professional cyclists have taken an illegal substance in the past 6 months…

Q: The following table presents the intelligence quotients of nunaway boys. Intelligence Quotient 30 -…

A: From the above data The third option is correct  The data is normally distributed The second option…

Q: 7 8 9

A: Enter data set 2 in Excel. Use Excel formula "=AVERAGE()" for mean and "STDEV.P()" for standard…

Q: 39 Suppose that Y, and Y, are independent Poisson distributed random variables with means A1 and A2,…

A: Solution

Q: the mean monthly salary for a flight attendant is about 65700 with standard deviation of 14500. A…

A: GivenMean(μ)=65700standard deviation(σ)=14500sample size(n)=48

Q: QUESTION THREE Suppose you have a normal distribution variable ?, ?=60 and ?=18.  a) Find the…

A: We have given that Mean(µ) = 60Standard deviations (σ) = 18X ~ N (µ, σ )= N (60, 18)u

Q: The scatter plots below show the results of a survey of 20 randomly selected males ages 24-35. Using…

A:

Q: company finds that for its 12 ounce cans of soda, the actual amount of soda inside is Normally…

A: Mean(µ) = 12Standard deviations (σ) = 0.25X ~ N (µ, σ )= N (12,0.25)

Q: 14. 42.8% of the class got a score between 74-80. MUKHANG TAMA O SEEMS WRONG

A: We have given that the frequency distribution of scores of an SW198 class.

Q: Write a short paragraph (about 30 – 50 words) to summarize the production cost of a metal bar. (The…

A: Given that, The production process can be modeled by a normal distribution with a mean length of 11…

Q: Bilqees, a prospective university student who just matriculated, must decide which profession she…

A: Solution: X (X-X) (X-X)2 287 37 1369 196 -54 2916 276 26 676 252 2 4 275 25 625 325…

Q: What the consequences of making a Type I error? e. What the consequences of making a Type II error?

A: The provided information is  µ=21.4 σ=5.4 n=35 The null and alternative hypothesis are…

Q: Bilqees, a prospective university student who just matriculated, must decide which profession she…

A: Given that , Bilqees decides that if economics graduates earn, on average, R250 000 per year within…

Q: Find the probability that one selected subcomponent is longer than 121 cm.   Probability =  B.…

A: An automatic machine in a manufacturing process is operating properly if the lengths of an important…

Q: MO22. A hypothesis will be used to test that a population mean equals 10 against the alternative…

A: Given that  Population mean =10 Null and alternative hypothesis  H0 : μ =10 H1 : μ <10 Level of…

Q: a. Compute the p-value of the test.

A: Here given, Sample mean = 19.1 Sample standard deviation  = 11.4 Sample size = 42 Here population…

Q: Using the IQR definition of outliers, how many outliers are in this data set? Find the lower fence…

A: Formula for lower fence: Lower fence=Q1-1.5IQR Formula for upper fence: Upper fence=Q3+1.5IQR…

Q: The Pew Research Center polled n = 1048 U.S. drivers and found that 69% enjoyed driving their…

A: Given Information: Sample size n=1048 69% enjoyed driving their automobiles.

Q: a. Should they build the windmill? Justify by conducting a hypothesis test at α = 0.05. Report the…

A: here from given information  n = 35 sample mean = 21.4 mph sample standard deviation  = 5.4 mph…

Q: 6.24. Most desirable mates. A poll of 5000 residents in Brazil, Canada, China, France, Malaysia,…

A: We have given that,  Sample size (n) = 5000 and sample proportion (p̂) = 16% = 0.16  Then,  We will…

Q: In a newly revamped huge city hall, fluorescence lamps are installed in 113 large exhi- bition…

A:

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

A: Solution-: We verify that the correlation is significant at an α=0.05. If the correlation is indeed…

Q: The following table shows the joint probability distribution of X and Y, where Y is the income level…

A: Given that    Debt ratio (X)   Income(y) High Low High income 0.24 0.29 Low income 0.12…

Q: The average systolic blood pressure of a population of young men is u = 112.5 mm, o = 16.4 mm.…

A: Given μ=112.5, σ=16.4

Q: Fit a normal curve to the following data by the method of ordinates : 59.5 62.5 65.5 68.5 71.5 -…

A:

Q: It is believed that in the upcoming election, 65% of the voters in Baguio City will vote or…

A:

Q: Suppose you are asked to arrange 10 books in a shelf. Three of them are Mathematics, 4 are English…

A: Let us assume there are three women A, B and C sitting beside each other. The different ways in…

Q: What type of data (nominal, ordinal, interval, or ratio) is shown in this chart? What can you learn…

A: The objective is to find out which type of data among nominal, ordinal, interval, and ratio is shown…

Q: Supposed that the mean age of the employees of warrior's corporation is 45.5 years and the standard…

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Q: Create an Central Limit Theorem Daily Life Own Word Problem and Cite the importance of using it.

A:

Q: Use the given data to find the minimum sample size required to estimate a population proportion or…

A: The random variable X follows normal distribution. We have to find the sample size. This is z-test…

Q: MO22. A textile fiber manufacturer is investigating a new drapery yarn, which the company claims has…

A: Mean(µ) = 12Standard deviations (σ) = 0.5Sample size (n) = 4Hypothesis:-H0 : µ =  12H1:  µ <  12

Q: A large sample size can be a powerful way to guess the true mean of a random variable X using a…

A: Given Information: Mean μ=100 Standard deviation σ=1.0

Q: Calculate the following probabilities and indicate which probability distribution model is…

A:

Q: A Pew Internet Project Data Memo presented data comparing adult gamers with teen gamers with respect…

A: There are two independent samples which are adult gamers and teen gamers. We have to construct 95%…

Q: You generate a scatter plot using Excel. You then have Excel plot the trend line and report the…

A: The regression equation is reported as y=−87.92x+95.31  r2=0.04

Q: 9. Regression analysis was applied between sales data (y in $1000s) and advertising data (x in…

A:

Q: Question 5: The owner of a small pet supply store wants to open a second store in another city, but…

A:

Q: (a) There are 97% of the cars will be loaded with more than K tons of coal. What is the value of K?…

A: here AS PER GUIDELINES I HAVE CALCULATED 3 SUBPARTS  Coal is carried from a mine in West Virginia to…

Q: x y 23 91.3 28.4 79.4 28.6 72.6 41.3 56.9 19.1 97 29.9 71.9 29.5 77.9 36.6 65.4 33.3 67.8 24.9 78.8…

A:

Q: Based

A: Equation that was created: y=47003x  + 51503y =1566.67x + 1716.67

Q: A 1992 article in the Journal of the American Medical Association ("A Critical Appraisal of 98.6…

A: The random variable temperature follows normal distribution. We have to test whether the population…

Q: A sample of 200 people are classified as below. If a person is picked at random from this Stoup,…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…

Q: MO21. A particular brand of diet margarine was analyzed to determine the level of polyunsaturated…

A: Given data is12.8,14.3,11.1,16,13.5,12sample size(n)=6

Q: Steve Burns, host of the first season of Blue' clues recently bids goodbye to the show. Assuming…

A:

Q: 10. A teacher is interested her class's average hours of sleep. She asks each of her student how…

A: Sample survey is a method of selecting individuals that is sample from a population in order to…

Q: You wish to determine if there is a positive linear correlation between the two variables at a…

A: The independent variable is x and the dependent variable is y. We have to find the correlation…

Q: The yield of a chemical process is being studied. From previous experience yield is known to be…

A: Given that The data is normally distributed . The past 5 days of plant operation have resulted in…

Q: The employees of a local manufacturing plant pledged the following donations in dollars to the…

A: