Using the same question:    Find and interpret the probability that between 9 and 12 between of​ them, inclusive, are satisfied with the airlines.   The probability that between 9 and 12 ​adults, inclusive, are satisfied with the airlines is ____

Q: Find the following ptobability. P(Z > 2.13) Round to 4 decimals

A: Answer: Using the given data, We have to find the probability that P(Z > 2.13) Z indicates…

Q: If X is exponentially distributed with a mean of 3, can you find a uniform distribution U[a,b] with…

A: Given that,  X~ exp(3) where, mean= 3 and standard deviation = 3

Q: Most married couples have two or three personality preferences in common. A random sample of 377…

A: Problem 8: First sample: Sample size n1=373 Number of successes x1=291 Second sample: Sample size…

Q: Examine the following two-factor analysis of variance table shown to the right. Complete parts a…

A: From the given information we make following calculation

Q: 11. Investigators at the U.S. Department of agriculture wished to compare methods of determining the…

A: That is, there is no evidence to conclude that there is a significant difference in the mean amount…

Q: After being hired as a financial advisor for a large real estate company, you have been tasked with…

A: Consider the given data: Random Sample Property Taxes Size 1 18229 1890 2 43988 5665 3…

Q: how did you get the z a/2?

A: how did you get the z a/2?

Q: a tax collector, finding himself short of funds, delayed depositing a large property tax payment ten…

A: The situation can be modeled using the hypergeometric distribution, which describes the probability…

Q: For the set of data, describe the shape of the distribution…

A: 28, 14, 22, 36, 55, 39, 46, 63, 46, 35, 53, 55, 67, 42

Q: 3. If cheese consumption has gone up, the Cheese Club of America will decide to spend $500,000 and…

A: A type I error occurs when the Cheese Club of America decides to spend $500,000 and hold a…

Q: Chicken Delight claims that 90% of its orders are delivered within 10 minutes of the time the order…

A: sample size(n)=100 x=82 significance level(α)=0.10 claim is that 90% of the orders are delivered in…

Q: Find the indicated area under the standard normal curve. Between z = - 2.23 and z = 2.23

A: z=-2.23 z=2.23

Q: Draw a normal distribution sketch that has the same mean and standard deviation as the sample.…

A: The mean of the normal distribution, μ=67 The standard deviation of the normal distribution, σ=84

Q: Find the width of each interval by subtracting the lower proportion from the upper​ proportion, and…

A: First we will calculate 95% confidence interval We have given thatn = 2029x = 645p̂ = x/n = 645/2029…

Q: Assume that human body temperatures are normally distributed with a mean of 98.18°F and a standard…

A: (a) The percentage of normal and healthy persons considered to have a fever is obtained below as…

Q: The number of calls received by an office follows Poisson distribution with a mean of 8 calls.…

A: Answer: From the given data, Let X: number of calls received by an office follows X follows Poisson…

Q: The following data give the percentage of women working in five companies in the retail and trade…

A: %Working(x) %Management(y) 67 50 45 45 73 73 54 54 61 61

Q: You work for an insurance company and are studying the relationship between types of crashes and the…

A: The data table provided in the question is as follows :-     Vehicle   Type of crash Car Pickup…

Q: A random sample of 5055 adults in the United States includes 751 who do not use the Internet (based…

A: A random sample of 5055 adults in the United States includes 751 who do not use the Internet. US…

Q: 7. You want to estimate the mean weight loss of people one year after using the Atkins diet. How…

A: Level of significance ɑ=0.01, margin of error=e=0.5, standard deviations σ=10.5,

Q: In a random sample of 282 independent returns from this year, around __________ returns, give or…

A: According to estimates by the office of the Treasury Inspector General of IRS, approximately 0.05 of…

Q: The following dataset represents ten students, indicating the frequency of their absences from a…

A: The following dataset represents ten students, indicating the frequency of their absences from a…

Q: Look at the ANOVA table. These are the results of an experiment that was done to test whether C…

A: a) - In the ANOVA table provided: Degrees of freedom (df) for "Corrected Model" refer to the number…

Q: Using standard normal table ar Excel function find the probability, Calculate the P(Z>0.65)…

A: Answer: From the given data, X follows normal distribution,

Q: About% of the area is between z=-1and z=1 (or within 1 standard deviation of the mean). (Round to…

A: here given  z =  1  and z= -1  area between two z score value represent by probability .

Q: Number of Facilities Number 9 11 16 21 27 30 Average Distance (miles) 1.67 1.11 0.83 0.63 0.52 0.46…

A: Number of Facilities Average Distance 9 1.67 11 1.11 16 0.83 21 0.63 27 0.52 30 0.46…

Q: .O 20/20 √n The confidence level is 96%, the sample size is n = 900, o = 25. 10. Calculate the…

A: Here given that:

Q: A company collects information on the retail prices of books. In 2005, the mean price of all history…

A: Sample size(n)=40 sample mean(x¯)=$54.89 Population standard deviation(σ)=7.61 and α=0.01

Q: How does one enter the following data into Excel to produce the ANOVA table and F-test stat? Rounded…

A: Let Factor A denotes the three levels. Let Factor B denotes the two levels. That is, there is no…

Q: According to recent data, 12 percent of people are left handed. In a sample of 20 people, how many…

A: Answer: Using the given data, Let X denotes the number of people who are left handed P(left handed)…

Q: The population mean will always be the same as the mean of all possible X that can be computed from…

A: As per guidelines I have calculated first question  Here comparing population Mean and mean of…

Q: 24 hours fitness wants to determine whether the number of days per week that college students spend…

A: Here ,  There are two categorical variables (Days per week spend exercising) & (Gender)  Here…

Q: Find the critical t value that corresponds to 92% confidence, Assume 28 degrees of freedom…

A: Answer: From the given data, 92% confidence interval, degrees of freedom (df) = 28

Q: The formula used to calculate a confidence interval for the mean of a normal population when n is…

A: Note :- As per our guidelines we are supposed to answer only 3 subparts of any questions so i am…

Q: Suppose that in a random selection of 100 colored candies, 22% of them are blue. The candy company…

A: Sample size(n)=100 sample proportion(p^)=0.22 and α=0.01

Q: Given the table of weights below a WEIGHTS X-u (x-μ)²

A: WEIGHTS x-μ x-μ2 80   900 100 -10   110   0 120 10 100 132 22

Q: The cost of weddings in the United States has skyrocketed in recent years. As a result, many couples…

A: From the provided information, Sample size (n) = 8 The claim is that the mean wedding cost is less…

Q: Test the following hypothesis and interpret your findings: Hypothesis: population mean = 10.5; mean…

A: Population mean: μ=10.5 Sample mean: x¯=13.1 Standard error: s=2.1 Sample size: n=500 Level of…

Q: 1. During the COVID-19 Pandemic, while school-aged children were attending classes online, 70% of…

A: Sample size n =500 Favorable cases x =335 Sample proportion p^=x/n  =335/500 =0.67

Q: Education influences attitude and lifestyle. Differences in education are a big factor in the…

A: The sample size (number of cities) where people aged 65 and over took part in survey  n1=32The…

Q: A student running for a position in student government believes that 55% of the student body will…

A: c. Suppose p is the true population proportion of student bodies, who will vote for the student…

Q: a) Write an introduction: • Explain the problem in general (e.g., vitamin D deficiency and…

A: Vitamin D is an important nutrient that is essential for healthy bones and teeth, as well as a…

Q: In a recent study on world happiness, participants were asked to evaluate their current lives on a…

A: Answer: From the given data, Let X: Happiness score X is normally distributed with Mean μ = 5.4…

Q: cal values for quick reference during this activity. nfidence level Critical value 30 = 1.645 95 99…

A: We have given that,  Confidence interval = 99% or 0.99 and margin of error (E) = 2.83% = 0.0283

Q: Do left handed starting pitchers pitch more innings per game on average than right handed starting…

A: Left Right 7 6 5 5 5 4 7 6 4 5 6 4 7 5 5 5 6 3   5

Q: 2. The U.S. Department of Agriculture reports in Food Consumption, Prices, and Expenditures that the…

A: Comparing of hypothesized mean with the sample mean can be done by using single sample t - test or…

Q: A survey of 175 consumers found that 70 had a tablet computer, 60 had a smartphone and 35 had both a…

A: T for total A for tablet  B for smart phone  n(T)=175, n(A)=70, n(B)=60, n(A and B)=35

Q: L1. Using the central limit theorem, show that, for large n, the binomial distribution B(n, p)…

A: Using the central limit theorem, show that, for large n, the binomial distribution B(n, p)…

Q: The weights of men are normally distributed with a mean of 76 kg and a standard deviation of 8 kg…

A: Answer: From the given data, X follows normal distribution mean (μ) = 76 Standard deviation (σ) = 8…

Q: The Nile Superstore is conducting a survey of consumer preferences for a new wireless e-book reader.…

A: Sample size n =150 Favorable cases x =122 Sample proportion p^=x/n =122/150 =0.8133   NOTE:-…