A study found 1 in 200 women do not shave. If a random sample of 400 women is obtained, is the sampling proportion of women that do not shave approximately normal?  A) yes, sample was randomly selected  B) no, np<10 C) yes, sample size greater than 10% of the population.  D) no, nq<10

Q: the United States, 66% of adults and 87% of youths ages 12 to 17 use the Internet. Use the reported…

A: Given that The Washington Post reported that, in the United States, 66% of adults and 87% of youths…

Q: Power of the test has no relation with sample size. a) True b) False

A: There are two types of errors, they are type 1 and type 2 error. The type 1 error is rejecting the…

Q: A tree enthusiast is interested in estimating the typical lengh if oak tree leaves. He chooses 30…

A: It is given that the researcher is interested in an oak tree and wants to the estimate the typical…

Q: uation ATIN=Nx(1-Pa) + nxPa ATIN=n + (N-n)x(1-Pa) b) In a single sampling application, the lot size…

A: Given :a) Which of the equation is correct.b) Single sampling the lot size is 1400 and the sample…

Q: Describe the sampling distribution of p. 5) N= 20,000, n = 600, p= 0.3 Support your reasoning in…

A:

Q: unt spent on Food Food items purchased ek people in the party my (morning, afternoon, ev ype (credit…

A: A) To conduct one sample t interval our data must meet the following requirements: Test variable…

Q: Suppose a box contains 9 balls. Find the number of all ordered samples of size 3: 1) with…

A: Given data: Suppose a box contains 9 balls. To find: Find the number of all ordered samples of size…

Q: Each of 55 subjects tastes two unmarked cups of coffee an says which he or she prefers. One cup in…

A: Solution:- Given that each of 55 subjects tastes two -  unmarked cups of coffee and says whichhe or…

Q: A population of a certain LGBT+ community is consists of 6 measurements 2,3,6,9,1 and 5 1.) What…

A: For the given data Find 1.) What is the mean of the sampling distribution of the sample mean? 2.)…

Q: model ​N(100​,16​). ​a) What cutoff value bounds the highest 10​% of all​ IQs? ​b) What cutoff…

A:

Q: Five balls are sampled without replacement from a bag containing 15 balls numbered 1,2,...,15. Find…

A: 5 balls are sampled without replace from a bag containing balls numbered 1 to 15. Total number of…

Q: sampling

A: Here sampling is without replacement so once a element drawn then not returned

Q: . For a population with o = 16, how large a sample is necessary to have a standard error that is a.…

A:

Q: When dragons on the fictional planet Pern lay eggs, the eggs are either green or yellow. The…

A: The objective of this question is to calculate the mean, standard deviation, and variance of the…

Q: a) Compute the mean number of yellow eggs in samples of 58 eggs? (that is the same as asking for the…

A: Here use binomial theorem  Finite number of trial (n=58) Each trial independent from each other…

Q: Construct an OC curve for a sampling plan of N=100,000, n=10, c=1. a) What distribution and its…

A: Solution: From the given information, N=100,000, n=10 and c=1.

Q: The sampling distribution attached shows sample means from samples of size n=50. a) what does one…

A: It is given that the sample size (n) is 50. Consider that is defined as the sample mean of the dots.…

Q: The Diversity, Equity, and Inclusion (DEI) office of a major multinational bank is investigating the…

A: n = 1650 P = 12% = 0.12 Formula Used: The Mean of the sample proportion μp^ = p Standard deviation =…

Q: Use the Normal model N(102,10) for the IQs of sample participants. a) What IQ represents the 11th…

A: The Normal model N(102,10)Mean()=102standard deviation()=10

Q: what is the standard error of the sample distribution of the rates for 49 customers who shopped more…

A: Let p be the proportion of the customers who shop at the big shopping mall for more than 200.000 YTL…

Q: Here is a population of scores: 5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1 A) What is the cumulative frequency…

A: Here, we use the concept of frequency distribution.  Sample size (n) = 11 Data set : {5, 4, 4, 3, 3,…

Q: answer b and c pls  thank you

A: 2) We are asked to classify the random variables as discrete or continuous. Discrete variable is the…

Q: In a ceratin city, there are 10,000 men age 24-35; 225 of them are chosen at random: avg sample…

A:

Q: company claims that 80% of all emails from custumers are responden within 24 hours of being…

A: According to guidelines we solve first three subparts when given multiple subparts

Q: At a small local college, 78% of all students are receiving some kind of financial aid. A local…

A: Given,population proportion(P)=0.78sample size(n)=75and X=58

Q: ppose that 97% of Monarch butterflies migrate to Mexico in winter. What is the smallest sample size…

A: Given data, 97% of Monarch butterflies migrate to Mexico in winter p=97%=0.97 What is the smallest…

Q: ld a researcher increase the efficiency of a point estimate?    a) decrease the alpha   b) increase…

A: The efficiency of a statistic is known as the degree, to which the statistic is stable from sample…

Q: a) The IQ representing the 22nd percentile is (Round to one decimal place as needed.) b) The IQ…

A: Given : the Normal model N(99,18) for the IQs of sample participants Here mean, u = 99 population…

Q: A rowing team consists of four rowers with weight of 152, 156, 160, and 164 pounds. a) Compute a…

A: In statistics, the population refers to the complete set of objects/individuals over which the study…

Q: d) What is the z critical value that we would use to construct a classical 95% confidence interval…

A: Given Information: The sample size, n=4178 The number of Monopoly scratch-off winners, x=912

Q: For Z test for mean one can increase or decrease p-value by increasing or decreasing sample size. a)…

A: We know that, As the sample size increase then Z value changes then p value also changes.

Q: 1. For the following sample of n = 20 scores, calculate the following: a) ΣΧ b) Σχ2 c) Σ2Χ -1

A: The data is given by X : 4,10,10,12,8,8,8,8,8,2,14,10,12,14,4,6,2,8,6,6

Q: A sampling error is the situation in which not all memebrrs of the population are equally likely to…

A: The statement is false. A sampling error refers to the discrepancy between the sample statistic and…

Q: (a) Determine the population mean pulse. The following data represent the pulse rates (beats per…

A: Given information: The data representing the pulse rates (beats per minute) of N = 9 students…

Q: A population of a certain LGBT+ community is consists of 6 measurements 2,3,6,9,11 and 5 1.) What…

A:

Q: What is the population?  A) New remote control buttons B) the selected 36 buttons C) electronic…

A: The given study is about new type of remote button. The population is:  A) New remote control…

Q: Sample sizes of 4 are selected from a population with μ = 40 and σ = 8. What is the standard error…

A: The formula of standard error for the mean is,

Q: eague A teams visit League B teams, the League A pitcher must bat. So, if the DH does result in more…

A: The data values given are shown below:League A parkLeague B…

Q: ) 32 randomly picked people were asked if they rented or owned their own home, 8 said they rented.…

A: Given that, n=32 x=8 Point estimate (p)=?

Q: A population of a certain LGBTQ+ community is consists of 6 measurements 2,3,6,9,11 and 5 2.)…

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.