- In a city, the daily consumption of milk in excess of 20,000 gallons is approximately exponentially distributed as f(x): I%, with 0 = 3000. The city has a daily štock of 1 35000 gallons. What is the probability that of two days selected at randam, the stock is insufficient on both the days.

Q: What are the two types of hypotheses used in a hypothesis​ test? How are they​ related?

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Q: Use the sample data and confidence level given below complete parts (a) through (d). A drug is used ...

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Q: Question 4 For a standard normal distribution, find: P(z > -0.84) Express the probability as a deci...

A: We have given that the standard normal distribution that is,Z ~ N(0, 1)

Q: For a standard normal distribution, find: P(z > c) = 0.8946 %3D Find c rounded to two decimal places...

A: Given info: For a standard normal distribution, P(z > c) = 0.8946.

Q: A drug is used to help prevent blood clots in certain patients. In clinical​ trials, among 4212 pati...

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Q: Based on the density graph below, what is the probability of a value in the sample space being anywh...

A: The sample space, 60 to 80 forms a triangle.

Q: Say you were interested in sampling students who deal drugs on campus. Wha sampling technique could ...

A: (5) You were interested in sampling students who deal drugs on campus.   

Q: Problem A According to the national survey conducted by DOH on 2016, patients in the urban community...

A: Given,sample size(n)=15sample mean(x¯)=5standard deviation(s)=2.3degrees of freedom(df)=n-1df=15-1=1...

Q: The sampling distribution of Pis closely related to the normal distribution. True or False True Fals...

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Q: Little Peten'ka refuses to eat broken spaghetti, so his monm wants so compare two brands "M" and "A"...

A: Given that, Little Peten'ka refuses to eat broken spaghetti, so his mom wants so compare two brands ...

Q: Which of the following is a type I error?

A: Here use given claim to identify type 1 and type 2 error   

Q: What is the probability of making a Type I error?

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Q: Example A fair coin is tossed 500 times. Find the probability that the number of heads will not diff...

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Q: Assume that adults have IQ scores that are normally distributed w 21.6. Find the first quartile Q,, ...

A: Given: mean=μ=95.1 standard deviation=σ=21.6

Q: A machine that fills boxes of cereal underfills a certain proportion p. If 25 boxes are randomly sel...

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Q: a) Find the mean? b) Find the median? c) Find the mode?

A: Here AS PER POLICY I HAVE CALCULATED 3 SUBPARTS  The following data was the exam scores (out of 100 ...

Q: Calculate the arithmetic mean from the following ta : Тетр. "С" No. of days -40 to -30 -30 to -20 -2...

A: We have given that.  I want to find mean.  Mean = sum of all observations/total number of observatio...

Q: For the same uniform distribution ~U(6,10), i.e with min=6, max=10, the mean is   A continuous unifo...

A: Given: Random variable has Uniform distribution with min=6, max=10  

Q: According to privacy what data dose the government have about you? who has access the data? how is y...

A: Data : Individual facts, statistics, or items of knowledge, ofttimes numerical, square measure state...

Q: 1. Draw 2 chips one-by-one without replacement from an urn that contains 14 red and 36 black chips. ...

A: Probability : Probability could be a field of arithmetic that deals with numerical descriptions of h...

Q: Data is collected on teacher salary (measured in 1000’s of $’s) and years of service, rating by the ...

A: Given Data is collected on teacher salary (measured in 1000’s of $’s) and years of service, rating b...

Q: The personality characteristics of business leaders (e.g., CEOS) are related to the operations of th...

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Q: Illustration 17.13. In the above illustration what number of lamps may be expected to fail between 7...

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Q: 9. A teacher writes the name of each student in a card, shuffles the cards, and then draws nine name...

A: 9. Examining is a technique that is utilized by the analysts to deduce data about a populace in view...

Q: There are 200 identical radios out of which 80 are defective. If 5 radios are selected at random, co...

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Q: estion 15 In the country of United States of Heightlandia, the height measurements of ten-year-old c...

A: Let X be the random variable from normal distribution with mean (μ) = 56.3 inches and standard devia...

Q: Tennis balls are randomly toss into one of five trays. Determine the number of balls needed to ensur...

A:

Q: A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola i...

A: Givensample size(n) = 30Mean(x)=48.8stadnard deviation(σ)=7.6α=0.06

Q: Let X have a uniform distribution on the interval [0,1] and let Y ~ N(0,1). Suppose that X and Y are...

A: Here, X ~ Uniform(0,1) Y ~ N(0,1) PDF of X, fXx = 1if 0<x<10otherwise So, CDF of X, FX(x) = 0i...

Q: C. What percentage of the students studied for more than 5.8 hours? d. Harry noticed that he scored ...

A: Given :  Mean = 4.6 Standard deviation = 1.2

Q: sample of 97 psychology graduates found an average salary of $71 K/year. Assume ?=$14 K/year. Find t...

A: Given Z score 90% confidence interval=1.645 Sigma=14 n=97

Q: Question 1 Which type of chart would be best for displaying the relationship between two variables? ...

A: Here we know that line graph, box plot, bar graph, we use one variable.

Q: An insurance company selected samples of clients under 18 years of age and over 18 and recorded the ...

A: An insurance company selected samples of clients under 18 years of age and over 18 and recorded the ...

Q: A firm produces articles of which 0.1 percent are usually defective. It packs them in cases each con...

A:

Q: Suppose you have 5 different flags available to make a signal.  How many ways can this be done if yo...

A: Given,Total no.of flags=5

Q: A manager accepts the work submitted by his typist only when there is no mistake in the work. The ty...

A: Let x be the random variable denotes the number of mistakes per letter. The 20 letters are typed wil...

Q: A company claims that the mean monthly salary for their managers is 11 thousand dollars. A sample of...

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Q: at a simple random sample has been selected. Use a 0.05 significance level. Compare the sample mean ...

A: Solution: Given information: n= 200 Sample size  x= ∑xn=6504200=32.52 Sample mean s= ∑(x-x)2n-1s= 10...

Q: - A survey was conducted among college students if the school they are enrolled in is their own choi...

A: Let us arrange the given values into contingency table:   1st_yes 1st_No Total 2nd _yes 59 35 9...

Q: The popularity of computer, video, online, and virtual reality games has raised concerns about their...

A: Given The observed and expected counts of computer and video games Find Chi square Statistic x2 We k...

Q: Determine the minimum sample size required when you want to be 99% confident that the sample mean is...

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Q: 12 Question 1 As sample size gets large enough (n > 30) sampling distribution becomes 1. almost norm...

A: We know that  Sample size n > 30 then what distribution we use.

Q: CO2 the owner of a apple plantation, plans to replace the brand of fertilizer that they currently us...

A: A distribution with bell shaped curve is called normal distribution which is symmetric about the mea...

Q: Which attribute is a qualitative nominal: 1 Time 2 Temperature 3 Sex

A: From the given options which is a qualitative nominal ?  

Q: A company is interested in finding out if there is any difference in the average salary received by ...

A:

Q: A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie....

A: Given: Total adults n = 500  

Q: For the standard normal distribution (µ 0 and o = 1), find: P(z < -1.05)

A: Given Mean=0 Standard deviations=1

Q: The age distribution of the Canadian population and the age distribution of a random sample of 455 r...

A: Solution-: We have, Total number of samples=455, α=0.05 (a) What is level of significance? (b) Test ...