There is a common belief that "men marry women who are younger than they are". To test this hypothesis, a random sample of 100 married couples were selected, and the ages of both the husband and wife were recorded. What is the name of the hypothesis test we would use to test that the mean age of men is higher than that of the women they marry? 1.Two tailed Paired Samples t-test 2.One tailed Paired Samples t-test 3.Two Tailed Independent Samples t-test 4.One Tailed Independent Samples t-test

Q: Random variables X and Y have the means and standard deviations as given in the table to the right…

A: Solution

Q: The mean weight of female aerobics instructors in a certain city is more than 132 lbs. Express the…

A: Claim : The mean weight of female aerobics instructors in a certain city is more than 132 lbs.

Q: Explain, whether the data can be calculated if the hypergeometric distribution is not known the…

A: Please find the explanation below. Thank you

Q: A computer scientist is investigating the usefulness of two different design languages in improving…

A:

Q: For two independent lives (x) and (y) : t tPx tPxy 1 0.98 0.998 2 0.96 0.990 3 0.90 0.970 4 0.80…

A: Given two independent lives x and y

Q: 1 sandwich 2 sandwiches d drinks. The joint distribution on the right summarizes e number of…

A:

Q: The daily salaries of security guards for 10 security agencies are as follows (in Php): 350, 400,…

A: Given that The daily salaries of security guards for 10 security agencies are as follows (in Php):…

Q: 20. In a sample of 1000 voters, a popular mayor. Aira, got 75% of the votes. She is 90% confident of…

A: According to the formula of Margin of Error (MOE) = γ*σ2N     where γ= percentile , σ = Standard…

Q: A criticism of a value weighted index is that a. they are subject to exchange rate fluctuations.…

A: Value weighted index is a concept under stock market index.

Q: The Joint pro. density function of two discrete discrete variable X and Y is given by P(X,Y)= =…

A: The joint density function is P(x,y)=118(2x+y)    x=1,2; y=1,20                          otherwise

Q: Answer and show complete solution. Data for the energy consumption per person (or per capita) and…

A:

Q: 9. What is the mean of this distribution? X 8 11 14 P(x) 20% 30% 20% 17 7% 6 23%

A: Solution-: We have following table: x P(x) 8 20%=0.20 11 30%=0.30 14 20%=0.20 17 7%=0.07…

Q: Count the number of occurrences of an outcome in an experiment using fundamental principle of…

A: Hello thank you for the question. According to our honor code can answer only three sub parts at a…

Q: 26. A company guarantees customer satisfaction on the purchase of a product, or the company will…

A:

Q: Two machines are used to fill plastic bottles with dishwashing detergent. The  standard deviations…

A: a. Hypotheses for the test are given below:

Q: The table below shows the number of state-registered automatic weapons and the murder rate for…

A: Given For a) X=5.7 For b) X=3.3

Q: According to a study, the proportion of individuals in which cover their mouths when sneezing is…

A: Claim : the proportion of individuals in which cover their mouths when sneezing is 0.71.

Q: Consider the following data set: 0, 2, 2, 3, 5, 6, 3 (a) µ = (b) Variance = (c) σ = (Round…

A: Given data 0,2,2,3,5,6,3 n=7

Q: Assume the current value of Zt is 165 from a process that has the AR(1) model z = 0.42-1 + a, and…

A: An AR(1) model is a time series, Autoregressive model that forecasts the future value of a variable…

Q: Let X be a random variable with the following probability distribution. Value x of X P(x=x) 40 0.15…

A:

Q: 22. According to a commercial, 4 out of 5 dentist recommend a certain brand of toothpaste. Suppose…

A:

Q: What is the probability that the height of a randomly chosen child is between 56.4 and 64.7 inches?…

A: Let denote the heights of children. Given that X follows N(mean = 54.7, SD = 8), then Z = (X -…

Q: There are about 8 million people in the City of New York. A survey organization took a simple random…

A: Hello thank you for the question. According to our honor code can answer only three sub parts at a…

Q: The secretary in a statistics department would like to estimate how much coffee to brew per day such…

A: Solution-: Given data:  3, 4, 4, 6, 4, 6, 5, 2, 5, 3 We want to find, (a) The sample mean=? (b) The…

Q: Suppose you found out that two job applicants (namely Saif and Sofia) scored 130 and 75 respectively…

A: z score: Consider X as a normally distributed random variable, with mean μ and standard deviation σ.…

Q: A hotel chain wants to estimate the mean number of rooms rented daily in a given month. The…

A: From the provided information, Sample size (n) = 25 Sample mean (x̄) = 370 Population standard…

Q: Fifteen adult males between the ages of 35 and 50 participated in a study to evaluate the effect of…

A:

Q: For a sample size of 1, the sampling distribution of the mean will be normally distributed…

A: Given : For a sample size of 1, the sampling distribution of the mean will be normally…

Q: Sixty students were given a history exam. Their scores are shown below, sorted from smallest to…

A: Five number summary is:  Min, Q1, Median, Q3 , Max Here minimum observation is 16 so  Min= 16…

Q: Question 5 [ Below, we see a snippet of a dataset that consists of 128 observations and 15…

A: Givena)The regression output as shown below In model 1, the dependent variable is Body fat and…

Q: 13. The scores of the Top 15 Semi-finalists on the Ms. Universe Philippines are as follows: 85, 85,…

A:

Q: What is the probability ALL THREE circuits are Good?

A: Given:  computer manufacturing process produces a circuit that is installed into a computer. The…

Q: The number of accidents incurred by insured drivers in a given day (24 hours, starting from 6:00am)…

A:

Q: To become an actuary, it is necessary to pass a series of 10 exams, including the most important…

A:

Q: The average annual salary of public school teachers who graduated from a certain college is to be…

A: The average annual salary of public school teachers who graduated from a certain college is to be…

Q: Calculate the value of Median from the following 20. data. values: 30, 40, 50, 56, 32, 36, 34, 18,…

A:

Q: A random sample of 300 individuals working in a large city indicated that 84 are dissatisfied with…

A: Given  Total sample (n) =300 Number of dissatisfied individuals (x) =84 We need to find 99%…

Q: Consider the hypothesis test Ho: M₁ = μ₂ against H₁: M₁ μ₂. Suppose that sample sizes are m₁ = 15…

A: The sample sizes are n1=15, n2=15 x1=4.7, x2=7.8s12=4, s22=6.25α=0.05

Q: The critical value used in constructing a 95% confidence interval is ________.   Question 16…

A: It is given that  Sample mean = 6 Sample standard deviation = 2 Sample size = 8 Confidence interval…

Q: 28. Find the missing frequencies of the following data. The average marks of 100 students as per…

A:

Q: three children.  Assume the likelihood of a girl (G) and boy (B) is the same.  How many…

A: Given, Suppose a family has three children.  Assume the likelihood of a girl (G) and boy (B) is…

Q: A survey of 2,950 Filipinos showed that 2,655 trust the Supreme Court decisions on legal issues.…

A:

Q: In order to gain more insight on-employee’s preferences, twenty-three (23) employees from the…

A:

Q: 6. Six boys and six girls sit in a row. Find the probability that (a) the six girls sit together (b)…

A:

Q: Answer and show complete solution (not excel) Researchers theorize that the front cover and nature…

A: Given that

Q: 5) The marketing director of Sea World was concerned about the effectiveness of a recent advertising…

A: Boxplot---

Q: How many tissues should the Kimberly Clark Corporation package of Kleenex contain? Researchers…

A: Given : Claim : the mean number of tissues is different from 60.

Q: 2. Determine the lower and upper confidence limits for u interval if given tha (0) = 25.9, n = 80,o=…

A: Given: i) n=80σ=1.55x¯=25.9α=0.02

Q: A local college cafeteria has a self-service soft ice cream machine. The cafeteria provides bowls…

A: Given that  A local college cafeteria has a self-service soft ice cream machine. The cafeteria…

Q: The mean age when smokers first start is 13 years old with a population standard deviation of 2…

A: Solution-: Given: μ0=13, σ=2, x¯=12.3, n=34, α=0.01=1% We want to find, (a) Null and alternative…