Suppose that a poll taken 10 years ago found that 52% of parents spank their children,. Suppose a recent poll of 200 adults with children finds that 83 indicated that they spank their children.    A. Assuming​ parents' attitude toward spanking has not changed since the original​ poll, how many of the 200 parents surveyed would be expected to spank their​ children?   B.  The expected amount of parents surveyed that would spank their children is _____

Q: 1. A small college has an entering freshmen class of 528 students. Of these, 211 have brought their…

A: Let X be a random variable such that X: Number of students which brought their own personal…

Q: A random sample of 110 adult women aged 18 years or older and an independent random sample of 115…

A: c) Health

Q: Assume that the crime rate distribution is approximately normal in both regions. (a)Use a calculator…

A: Given : For region in new England given data :…

Q: David has 13 unblemished 8-sided (1-8) dice (fair dice). If all the dice are thrown simultaneously,…

A:

Q: In his book Outliers, author Malcolm Gladwell argues that more baseball players have birthdates in…

A: The single mean t-test is used to compare the mean of a variable in a sample of data to a mean in…

Q: 1.What would happen to the confidence intervals if you changed the level of confidence? 2.What…

A: The general formula for calculating width of the confidence interval for the population proportuon…

Q: Fourteen items are to be sampled from a lot of 75. If more than one is defective, the lot will be…

A: Given information- Lot size, N = 75 Sample size, n = 14 We have given that if no. of defective is…

Q: in a random sample of 500 police officers how many have an annual salary of at least $58,750

A: Let X denote the no.of police officer salaries and it follows normal distribution with mean of…

Q: you are interested in the age at which students start college and collect data from a small sample…

A: Range: Range is the difference between maximum and minimum observations.

Q: The working hours of 10 randomly selected students for the applied statistics course during the week…

A:

Q: The mark-and-recapture technique is commonly used to estimate the population size of animal species.…

A: In this case, each of the obtained rabbits has the only options of being "marked" (defined as…

Q: . What is the approximate probability of throwing between 47 and 53 heads in 100 tosses of unbiased…

A:

Q: Suppose you commit a crime. The way the judge is going to set your sentence is by pulling a number…

A: Consider X be the number selected by the judge which represents the number of years to spend in…

Q: The 11th Edition of The Pro Football Encyclopedia gave the following information. A random sample of…

A: The given observations are: 24, 24, 25, 25, 25, 25, 26, 26, 26, 26, 27, 27, 27, 28, 28, 28, 28, 28,…

Q: rrect answers? A. 0 O B. 320 O C. 12.8 D. 640 ... on, what is the mean number of

A: Given  n=640

Q: College Degree Recipients A survey of 800 recent degree recipients found that 151 received associate…

A: For the given data Perform Chi square goodness of fit

Q: A researcher wants to know if the time spent in prison for a particular type of crime was the same…

A: Solution The researcher wants to know if the time spent in prison for a particular type of crime was…

Q: College Degree Recipients A survey of 800  recent degree recipients found that 150  received…

A: The given data is, Category Oi Associate degree 150 bachelor 458 first professional 20…

Q: Is there a most dangerous day of the week to drive? Search for “USA Car Accidents in 2011” in the…

A: b). It is given that the likelihood of a fatal traffic accident is actually the same for each day of…

Q: Dr. Marion’s sample of 28 recordings of Gustav Mahler’s 6th Symphony: 84 70 75 84 78 87 83 79 85 88…

A: Solution: Let X be the length of recording of Mahler’s 6th Symphony. From the given information, the…

Q: A random sample of n1 = 10 regions in New England gave the following violent crime rates (per…

A: Given : Claim : the violent crime rate in the Rocky Mountain region is higher than in New England.

Q: A teacher attaches 2 to quiz, 3 to midterm and 5 for final exam. If a student gets 90, 50 and 60 for…

A: As per our guidelines, we are allowed to answer first question only. Thanks 1) A teacher attaches 2…

Q: ements true or false? es (in minutes) IS-tes S-ons

A: * Hi! Thank you for the question, As per the honour code, we are allowed to answer three sub-parts…

Q: The following table is based on a random sample of people age 18 and older who said they were…

A: Introduction - Chi-square test  χ2=∑(Oi-Ei)2Eiwhere Oi=observed frequencyEi=Expected frequency…

Q: According to a 2017 report, 53% of college graduates in a state had student loans. Suppose a random…

A: Given that N=140

Q: Test whether a majority of Kansas residents planned to set off fireworks on July 4th. In other…

A: Testing of population proportion is used here which is a binomial test that compare a proportion of…

Q: Records from the Washington Department of Licensing show that 47 former SFCC business students have…

A: Given 7, 12, 13, 17, 10, 5, 10, and 6 employees.

Q: Twittering away The Pew Internet and American Life Project asked a random sample of 2253 U.S.…

A: Given Information: Sample size n=2253 Sample proportion p^=0.19

Q: Since the Fair Labor Standards Act was passed in 1938, the standard work week in the United States…

A: For the given statement Select the correct choice

Q: Quinnipiac University Poll is a leading polling organization. In May 2019, it released a survey…

A: For Republicans,   Proportion of positive results = P = x/N = 0.68 sample size =N=213Standard error…

Q: In 100 tosses of a fair of coin, the expected or mean number of heads is

A: given data  n = 100 tosses fair coin so, P(head) = p  = 1/2 = 0.5 x = no. of heads tossed E(x) = ?

Q: To determine thế favorite type a. Ask shoppers that walk in the music store. h. Ask shoppers that…

A: It is asked to identify which sample is more likely to be random. Ask shoppers that walk in the…

Q: E(7) = (to 1 decimal) (to 4 decimals) = 20

A:

Q: A horticulturist claims a new fertilizer produces plants that are significantly taller than those…

A:

Q: 2.Suppose that 60% of middle school students in San Diego wear braces. A random sample of 250 San…

A: Given Information : Suppose that 60% of middle school students in San Diego wear braces. A random…

Q: Organ Donors USA Today provided information about a survey of 5100 adult Internet users. Of the…

A: There are 100 adults who are randomly selected from each state and the District of Columbia.

Q: a Pew research center surveyed ask adults in the United States which technology would be very hard…

A: Necessary conditions for binomial experiment: For each trial, there are only two possible…

Q: Suppose 1495 Valencia College students were selected at random from the entire student body and…

A: