A specific exam is designed to determine a person's satisfaction with his or her relationship. Assume the test results are quite regular, with a mean of 60 and a standard deviation of 10. Individuals with a score of 45 or less in their relationship are considered miserable. What proportion of people in relationships are dissatisfied with this criterion? You should round your answer to at least four decimal places.

Q: In statistics, what is a Confidence Interval and how confidence intervals are used in research

A: We have define the confidence interval . Also we have find the its use in the research

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A: Given that: 62.3, 64.3, 65.6, 68.1, 66.9, 65, 68.1, 63.4, 60.9, 65.3, 63.7, 70.1, 69, 59.9, 68,…

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Q: The Kunkel's host a game night every weekend.  The duration of these game nights, typically, last…

A: Given:  The duration of these game nights, typically, last between 90 minutes and 180 minutes the…

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A:

Q: According to Internal Revenue Service records, 1.55% of all household tax returns are audited.…

A: event                  A : tax returns are audited         B : own a dog P(A)=0.0155 P(B)=0.41…

Q: Why do we use inferential statistics? A All of the above apply to the use of inferential statistics.…

A: Inferential statistics is a branch of statistics where one uses characteristics of a sample obtained…

Q: 2. Assume that the box grabbed was a box of 12-sided die. Let the random variable Q count the number…

A: Q = No. of 1's rolled by  agent 12 sided die

Q: 3) The probability density function for Y is given by -7₁ e y > 0 (0, elsewhere f(y) = 30 And its…

A:

Q: 1. Logistic regression with ±1 labels. Logistic regression (with ±1 labels) maximizes the likelihood…

A:

Q: Of 1232 people who came into a blood bank to give​ blood, 397 people had high blood pressure.…

A: GivenTotal no.of people = 1232No.of people have high blood pressure=397

Q: Choose the correct answer below.

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A:

Q: Suppose that scores on a particular test are normally distributed with a mean of 120 and a standard…

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Q: assume that the daily retun on Apple stock is approximately normally distributed  with the mean…

A: From the provided information, Mean (µ) = 0.13% Standard deviation (σ) = 2.34% X~N (0.13, 2.34)

Q: The relative frequency table describes students at a local high school who are enrolled in a spring…

A: Given:   Water Sports Drink Total Lacrosse 12% 28% 40% Baseball/Softball 12% 48% 60% Total…

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A: Given,P(c≤Z≤0.730)=0.7551

Q: Discuss the sampling method that you think was used for this research

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A: Given: Population mean μ = 100 Population standard deviation σ = 16 Sample size n = 132 Sample mean…

Q: Suppose Z follows the standard normal distribution. Use the calculator provided, or this table, to…

A: Given that Z has standard normal distribution  P(Z>c)=0.1357

Q: 8.25 A study was conducted to compare the mean number of police emergency calls per 8-hour shift in…

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Q: scores of 40 students are listed below. Find P85.   30 35 43 44 47 48 54 55 56 57     59 62 63 65 66…

A: Given that  Arranging Observations in the ascending order, We get…

Q: 3. Let X₁, X2, Xn represent a random sample from a Rayleigh distribution with proba- bility density…

A:

Q: (a) Suppose that P(A U B) = 0.6, P (A) = 0.3 and P(An B) = 0.1. Are events A and B independent? (b)…

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Q: Consider the accompanying data on breaking load (kg/25 mm width) for various fabrics in both an…

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Q: Lloyd's Cereal company packages cereal in 1 pound boxes (16 ounces). A sample of 25 boxes is…

A: Givensample size(n)=25Mean(μ)=1 poundstandard deviation(σ)=0.1 pound sample of 25 boxes is selected…

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A: Quartiles divide a distribution into 4 equal parts. So, there are three quartiles viz. lower, middle…

Q: Complete parts (a) through (d) below. a. At the 0.05 level of significance, is there evidence that…

A: It is given that  Population proportion, π = 20.4% = 0.204 Sample size, n = 100 Favourable cases, X…

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Q: A water taxi carries passengers from harbor to another. Assume that weights of passengers are…

A: Suppose a random variable x defines the weight of the passengers.

Q: Listed below are the amounts of time​ (in months) that the employees of a restaurant have been…

A: Given that data  1, 5, 6, 8, 11, 14, 17, 46, 61, 90, 99, 126, 143, 167

Q: 1) Suppose that Y₁, Y2....,Y, is a random sample from a population with probability density function…

A: Given that, ay1,Y2,....Yn is a random same from a population with pdf:- f(y) = 1βy1-ββ,…

Q: Perform the following steps in R. Answer the questions in parts where there are questions. Attach R…

A: Given : R code : x=c(10,3,6,9,20,1,4,5)

Q: According to the records of a soft drink company, the bottles for their one-liter-sized products…

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Q: from the following table of yearly premiums for policies maturing at quinquenial ages, estimate the…

A: The yearly premiums for policies maturing at quinquennial ages.

Q: 9. [24/396, o Unknown] Consider the following hypothesis test: Ho: u = 18 and Ha: u 18. A sample of…

A: Hai I answer for all parts and your mentioned D part also why means first three parts are also…

Q: A clothing retailer is interested in the average waist size of men. A sample is taken with the…

A: Suppose that µ is the population average waist size of men.

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A:

Q: 3. State or specify the null and alternative hypotheses in the following (use complete statements,…

A: The answer is attached below.

Q: Suppose that 59% of all college seniors have a job prior to graduation. If a random sample of 100…

A: Using Normal approximation to the binomial with a correction for continuity P(X≤x) = P(X ≤ x+0.5)

Q: (c) Provide a 95% confidence interval for the difference between the two population means. (Usex - X…

A: Given that  n1 = 50 , n2 = 25

Q: When women were finally allowed to become pilots of fighter​ jets, engineers needed to redesign the…

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Q: Small-business telephone users were surveyed 6 months after access to carriers other than Carrier A…

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

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

Q: Suppose that Y; Y₂; Yn is random Sample from a population with probability density Function find the…

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Q: Int the following table, the median value would be: 1 2 3 4 35 1579 2468 56

A: convert stem-leaf plot to raw data, 13, 15, 21, 25, 27, 29, 32, 34, 36, 38, 45, 46 sample size,…

Q: Cheese Pizza 33% Chicken Fingers Total 022% 0 44% 0 55% Fruit Juice Chocolate Milk Total 55% 45%…

A: Given:   Fruit juice Chocolate Milk Total Cheese Pizza 33%   55% Chicken Fingers     45%…

Q: 5. Use the discrete random variable table below for the following. Answer parts a & b with 2-digits…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: X 0 1 Five males with an X-linked genetic disorder have one child each. The random variable x is the…

A: x p(x) x*p(x) x2*p(x) 0 0.035 0 0 1 0.156 0.156 0.156 2 0.309 0.618 1.236 3 0.309 0.927…