Math

StatisticsQ&A LibrarySampling with Replacement The Orangetown Medical Research Center randomly selects 100 births in the United States each day, and the proportion of boys is recorded for each sample. a. Do you think the births are randomly selected with replacement or without replacement? b. Give two reasons why statistical methods tend to be based on the assumption that sampling is conducted with replacement, instead of without replacement.Start your trial now! First week only $4.99!*arrow_forward*

Question

Sampling with Replacement The Orangetown Medical Research Center randomly selects 100 births in the United States each day, and the proportion of boys is recorded for each sample.

a. Do you think the births are randomly selected with replacement or without replacement?

b. Give two reasons why statistical methods tend to be based on the assumption that sampling is conducted with replacement, instead of without replacement.

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: Electricity Costs. The monthly service charge for electricity for a residential customer who is usin...

A: a.For the customer, the fixed cost that has to be paid for using the Two Period Plan is $4.10.In add...

Q: In how many different ways can a true-false test consisting of 5 questions be answered? Its not 10? ...

A: According to the provided data, there a total of 5 questions that can be answered in 2 ways, that is...

Q: A local store is having a sale. All shoes are 40% off. If a pair of shoes normally costs $13.72 plus...

A: Note:Hey there! Thank you for posting the question. Since exact value is not given, from the given i...

Q: Suppose that you have obtained a sample with the intent of performing a particular statistical-infer...

A: Solution: We have to determine:If we have obtained a sample with the intent of performing a particul...

Q: In each of Exercises, assume that the population standard deviation is known and decide whether use ...

A: As per the sampling Distribution If the true population distribution of a random variable x is norm...

Q: Here is a data set that has a nearly normal distribution. data data data data 45.5 51.33 28.7...

A: The provided data set has a nearly normal distribution. It is decided that each class will include t...

Q: find a point estimate for the population standard deviation (i.e., the standard deviation of the var...

A: Solution: We are given the below data:9,32,37,32,20,24,10,15,21,30

Q: Suppose that, in a hypothesis test, the null hypothesis is in fact true. a. Is it possible to make a...

A: Type I error:Probability of rejecting the null hypothesis when it is actually true.Type II error:Pro...

Q: Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarize...

A: Class limit: The smallest and the largest value for a class are called as class limits. The smallest...

Q: A 2x2 ANOVA produced the following F-ratios. FA = 1, FB = 5, FAxB = 8. For all three tests, dfbetwee...

A: The correct option is B.The F-ratio for the factor A is 1, B is 5 and AB is 8.The critical value of ...

Q: Notation Assume that we want to find the probability that when five consumers are randomly selected,...

A: According to given information:

Q: In Exercises, X denotes a binomial random variable with parameters n and p. For each exercise, indic...

A: Any binomial distirbution with value of np ≥ 5 and n(1-p) ≥ 5 can be approximated into normal distri...

Q: In Exercises, hypothesis tests are proposed. For each hypothesis test, a.determine the null hypothes...

A: a).Let µ be the mean lactation period of the population.The null hypothesis for the test is given be...

Q: Answer true or false and explain your answer: For a fixed sample size, decreasing the significance l...

A: Level of significance:The probability of rejecting a true null hypothesis is called level of signifi...

Q: Write 11^1 backwards

A: Hi! I am solving the given question in two ways. 11^1=11. The backward number is 11. Thus, the backw...

Q: Car Fatalities The recent rate of car fatalities was 33,561 fatalities for 2969 billion miles travel...

A: a)Mean of Poisson distribution:The formula is given by,

Q: Use the Poisson distribution to find the indicated probabilities Disease Cluster Neuroblastoma, a ra...

A: Note:Hey there! Thank you for posting the question. However, since your question has more than 3 sub...

Q: Bakery Products. TheMill Avenue Bakery packages its products in three sizes: one-half-pound, one-pou...

A: "Hi! Thank you for the question! Since the question contains four subparts and we are allowed to aut...

Q: Regarding the variables in a multiple linear regression analysis: a. What is the dependent variable ...

A: (a)Justification:Response variable:Response variable in a regression equation is the dependent varia...

Q: Why is sampling often preferable to conducting a census for the purpose of obtaining information abo...

A: Taking a sample is speedy and more cost effective than carrying out a census, and more knowledge abo...

Q: 120 psychology students took a standardized test. The scores are summarized in the GFDT below. ...

A: Frequency:The frequency of a particular data value is the number of times the data value occurs.Cumu...

Q: If most of the prices in a large data set are of approximately the same magnitude except for a few o...

A: Shape of the histogram:The shape of the histogram is said to be symmetric if it resembles a bell-sha...

Q: Discuss the relationship between the margin of error and the standard error of the mean.

A: Click to see the answer

Q: Drone Deliveries Based on a Pitney Bowes survey, assume that 42% of consumers are comfortable having...

A: From the given information:The probability that the consumers are comfortable having drones is p = 0...

Q: Diarrhea Vaccine. Acute rotavirus diarrhea is the leading cause of death among children under age 5,...

A: Given:Probability of success = p = 0.80Number of trials = n = 1500We have to find probabilities usin...

Q: ATM You want to obtain cash by using an ATM machine, but it’s dark and you can’t see your card when ...

A: a. Probability of selecting a random position and inserting the card with the result that the card i...

Q: #3

A: Click to see the answer

Q: For what is normal population an abbreviation?

A: When the term normal population is used, the abbreviation of the context is that the population that...

Q: Gestation Periods of Humans. For humans, gestation periods are normally distributed with a mean of 2...

A: Hello there, I have used excel to generate the Random no of 2000 sample of size 9 each.It is not pos...

Q: 4.18 stats for the social sciences. According to a recent Current Population Reports, self-employed...

A: GivenThe average time self employed individuals in United States work = 45 hours per weekThe standar...

Q: Annual Income. Refer to Problem 18. OutputsA.22(a), (b), and (c) on page A-62 display, respectively,...

A: Click to see the answer

Q: My question asks me to find the class width, limits, boundaries, midpoints, frequencies, relative fr...

A: Selection of number of classes:“2 to the k rule” suggests that the number of classes is the smallest...

Q: Which interval is wider: (a) the 95% confidence interval for the conditional mean of the response va...

A: Justification:Confidence interval:

Q: Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarize...

A: Class limit: The smallest and the largest value for a class are called as class limits. The smallest...

Q: Another type of confidence interval is called a one-sided confidence interval. A one-sided confidenc...

A: (a) The 95% lower confidence bound for the mean weight of all small bags of peanut M&Ms is 50.99...

Q: Researchers have observed that high school students who watched educational television programs as y...

A: Observational study:If the individuals under the study are just observed and measured based on certa...

Q: In each of Exercises, we have provided a sample mean, sample standard deviation, and sample size. In...

A: The null and alternative hypotheses are stated below:

Q: In each of Exercises, explain the effect on the margin of error and hence the effect on the accuracy...

A: Formula for the margin of error is given by

Q: A researcher conducted a one-way ANOVA and found F(3,27) = 3.5. In other words, dfbetween = 3 and df...

A: The critical value of F at 0.01, level of significance is obtained as shown below:From the given inf...

Q: Exercises pertain to P-values for a one-mean t-test. For each exercise, do the following tasks. a.Us...

A: a.Obtain the possible range of P-value for the given information.

Q: In p-->q what's the premise ?

A: Click to see the answer

Q: Regarding the estimate of the conditional standard deviation,σ,, which of the three sums of squares ...

A: Justification:Estimate of the conditional standard deviation: