he Binomial command(s) to find the probability that 23 students will withdraw. b) Use the Binomial command(s) to find the probability that more than 39 students will withdraw. c)Re-do (a) and (b) using the normal approximation.

Q: When two births are randomly selected, the sample space for genders is bb, bg, gb, and gg. Assume…

A: Sample proportions of girlsProbability00.250.500.510.25Sum1

Q: When two births are randomly​ selected, the sample space for genders is​ bb, bg,​ gb, and gg. Assume…

A: The given sample space is {(bb), (bg), (gb), (gg)}

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A:

Q: Suppose that the a college wants to have an idea of the average SAT score of the incoming freshman…

A: The confidence level is 0.90, the standard deviation is 310 and margin of error E is 50.

Q: A student wants to estimate the mean amount of money spent by fellow students on textbooks this…

A: Given : A student wants to estimate the mean amount of money spent by fellow students on textbooks…

Q: Table 2 shows the nights spent in Malaysia by the tourists from China, Thailand, and Vietnam for the…

A: Introduction: Denote μ1, μ2, μ3 as the mean number of nights spent in Country M by tourists from…

Q: Suppose we observed 120 successes in a random sample of 300 subjects. What is the 98% confidence…

A:

Q: Suppose an item follows a binomial distribution with a constant but unknown p. If 81 sample cases or…

A: Let a random variable X is the Binomial variable discussed here.  The sample size is 81 and x=67 We…

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

A:

Q: Suppose that the population of the number of hours slept by all college students the night before…

A: The sample size is 19, sample mean is 6.818, and sample standard deviation is 2.017.

Q: 3.) In a poll of 120 registered voters 100 said that they supported requiring background checks for…

A: According to the given information in this question We need to construct 85% confidence interval

Q: Out of a random sample of 60 freshman at State University, 25 students have declared a major. Find a…

A: Given, Out of a random sample of 60 freshman at State University, 25 students have declared a major.…

Q: A biologist is interested in the mean length of painted turtles in a certain region. From studies of…

A: Formula for the sample size needed to estimate a population mean is

Q: The Graduate Schools take a random sample of recent MS graduates (n=135) and finds that 12 of these…

A: Givenn=135x=12confidence interval = 90%p^=xn=12135=0.0889α=1-0.90=0.10α2=0.05zc=zα2=z0.05=1.6449…

Q: A random sample of 380 married couples found that 296 had two or more personality preferences in…

A: Let p1 be the population proportion of all married couples who have two or more personality…

Q: A local health centre noted that in a sample of 400 patients, 80 were referred ta hospital. a.…

A: Given, n = 400            x = 80 Therefore, population proportion p^ = 80400 = 0.2 The critical…

Q: Given the following GPA for 4 students: 2, 3, 3, 4. Age of students are: 10, 11,12,15. There are…

A:

Q: A trade magazine routinely checks the drive-through service times of fast-food restaurants. A 90%…

A: From the provided information, Confidence level = 90% Sample size (n) = 776 The lower bound is 165.6…

Q: Construct a 95% confidence interval for the ,ean number of hours of watching streaming videos…

A: given: mean=18.5       standard deviation = 3.2 we need to construct 95% CI for mean number of hours

Q: A sample of 50 employees is found to have a mean of $32474 and a standard deviation of $1334. A)…

A:

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A: Given Confidence interval=89% n(sample size)=413 x( number of success)=306

Q: The career center at a large university surveyed a random sample of students who graduated the…

A: First, we need to calculate the proportions of engineering and business majors who were able to find…

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A: Confidence intervals is an inference process which can be used to estimate the population parameter.…

Q: A random sample of high school students is used to estimate the mean time all high school students…

A: Solution: From the given information, a 99% confidence interval is 1.7 hours to 3.1 hours.

Q: Suppose that we want to find the mean number of hours gaming students play video games during the…

A:

Q: Most married couples have two or three personality preferences in common. A random sample of 386…

A: Given Data For Sample 1 n1 = 386 x1 = 124 For Sample 2 n2 = 562…

Q: Most married couples have two or three personality preferences in common. A random sample of 384…

A: Obtain the 95% confidence interval for the difference between two population proportions. The 95%…

Q: A sociologist is studying the prevalence of crime in one major city. In a sample of  200 randomly…

A: Here we need to construct a 95% confidence interval for the proportion of people who have been…

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A:

Q: A smartphone manufacturer is interested in constructing a 90% confidence interval for the proportion…

A:

Q: A manufacturer interested in estimating the fraction of defectivE units produced. A random sample of…

A: The answer is given using the formula of the confidence interval.

Q: suitable apples. There is a 95% probability that the true mean number of apples per tree is between…

A: Given : A farmer of a large apple orchard would like to estimate the true mean number of suitable…

Q: Of 2019 employees selected randomly at a company, 10% of them commute by carpooling. Construct a 90%…

A:

Q: In a sample of 85 statistics students, 41 said that finding confidence intervals for population…

A: It is given that x is 41 and sample size (n) is 85. The confidence level is 0.99.

Q: в, — 42, s — 8.8, SS,, — 64, п — 19 90% : < B1< 99% : < B1 S

A: Given   beta cap1 =42, s=8.8, SS xx =64 , n = 19

Q: Out of 100 people sampled, 44 have lied to a family member in the past month. Based on this,…

A:

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A: Givensample size(n)=390x=293p^=xn=293390≅0.7513Confidence leve=86%

Q: UC Berkeley randomly selects 100 students to represent them on the World Universities Congress next…

A: UC Berkeley randomly selects 100 students to represent them on the World Universities Congress next…

Q: gg. Assume that those outcomes are equally likely. Construct describes the sampling the sample…

A: The question is about sampling distribution Given : Sample space when two births are selected…

Q: 2. A group of students working on their thesis took a random sample of 100 families in a certain…

A: Given Sample size=100, sample mean x̄=1146, sample standard deviations s=650  Construct 90% CI for…

Q: 10 squirrels were found to have an average weight of  610  grams with a sample standard deviation of…

A: We have given that  Sample size n =10 Sample mean =610 Standard deviation =7.75

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.