Find the probability that a single randomly selected policy has a mean value between 181578.3 and 194651.5 dollars. P(181578.3 < X < 194651.5) =  (Enter your answers as numbers accurate to 4 decimal places.) Find the probability that a random sample of size n=65n=65 has a mean value between 181578.3 and 194651.5 dollars. P(181578.3 < M < 194651.5) =

Q: please see attached - thank you in advance

A: Given,   Claim: A majority of adults would erase all of their personal information online if they co...

Q: If a seed is planted, it has a 60% chance of growing into a healthy plant.If 11 seeds are planted, w...

A: If 11 seeds are planted, what is the probability that exactly 2 don't grow will be equal to the prob...

Q: research involving 11 people, 7 preferred Product X, 3 preferred Product Y, and 1 expressed no prefe...

A: Given data Research involving 11 people 7 preferred Product X, 3 preferred Product Y,   1 expressed ...

Q: Psoddns Suppose that the year nics planned to produce 950,000 units of its portable GPS devices. Of ...

A: Given that : Company CE planning to produce 950000 units of GPS devices.

Q: Procrastination is an issue many college students face and which teachers wish students would overco...

A: To test whether there is a difference between the procrastination scores before and after the counse...

Q: Express the confidence interval 55.5%±8.5 in the form of a trilinear inequality.% &lt;p&lt; %

A: Express the confidence interval 55.5%±8.5 in the form of a trilinear inequality.% &lt;p&lt; %

Q: You want to obtain a sample to estimate a population proportion. At this point in time, you have no ...

A: compute sample size ( n ) = n=(Z/E)^2*p*(1-p) 

Q: If P(-2 < Z< k) = 0.6472, where Z is a standard nomal random variable, then k is equal to: 0.44 None...

A: We have to find given data

Q: The following table shows site type and type of pottery for a random sample of 628 sherds at an arch...

A: We need to conduct a Chi-Square test of Independence. The following information has been provided. T...

Q: The random variable X has probability density function defined by f(x) = 2(1 – z²),0 < z < 1 0, else...

A:

Q: The average price of a college math textbook textbooks are randomly chosen. Round all answers to 4 d...

A: Given data,n=9μ=167σ=21

Q: If n = 440 and X = 352, construct a 90% confidence interval for the population proportion, p.Give yo...

A:

Q: A certain question on a test is answered correctly by 78% of the respondents. Estimate the probabili...

A:

Q: (a) Suppose you are given the following (x, y) data pairs.

A: Simple Linear equation is given by, Here sample size, n= 3 Summation Xi= 2+3+5= 10 Summation Yi= 4+...

Q: Does playing Mozart for unborn babies result in having children with higher IQs?    A psychologist o...

A: We know that  Using the P-value approach: The p-value is p=0.0626 , and p=0.0626≥0.05, it is conclu...

Q: find the standard deviation!

A: Formula for standard deviation is, s=x-x¯2n-1 Let us define xi as the given data values.

Q: you want to test whether the population distributions of the number of goals scored (in all competit...

A: We know, The degree of freedom for the Kruskal-Wallis test is k-1, where k stands for a number of gr...

Q: A researcher measures the correlation in rankings for ice cream flavors and consumers' rankings of t...

A: Given, ∑D2=19.5n=8  

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support...

A: When we don't have any prior information about population proportion, we generally take it as 0.50. ...

Q: If a hypothesis is not rejected at the 5% level of significance. One of the following statements is ...

A: We have to find correct statement.

Q: find the value of t for a t-distribution with 8 degrees of freedom such that the area the right of t...

A: the value of t for a t-distribution with 8 degrees of freedom such that the area the right of t equa...

Q: Please solve number 56. Finding probability. Find the indicated probability using the standard norma...

A: We have to find given probability.

Q: In an experiment to study the relationship between hypertension (high blood pressure) and snoking st...

A: a) This is a purposive study as Researchers use purposive sampling when they want to access a partic...

Q: P(x) X• P(x) r. P(x) X2 15 0.30 4.5 18 0.20 3.6 19 0.20 3.8 20 0.15 22 0.15 3.3 Solve for mean, vari...

A: Mean is given by, Mean =(summation Xi*p(x)) From the above table, Mean=(4.5+3.6+3.8+3+3.3) E(x)=18.2

Q: (a) Suppose that you throw 5 dice. Find the probability that you get at least one 6. (b) Suppose tha...

A: As per guidelines expert have to answer first question only...

Q: Q2) A paper mill uses a control chart to monitor the imperfection in finished rolls of paper. Produc...

A: Here, the sample size is varying. So,  u¯=∑cii=120∑nii=120= 288411= 0.701 UCL=u¯+3u¯/niLCL=u¯-3u¯/ni...

Q: 1. Suppose that for a certain life the probability density function is fx (x) = 1+x ,x >0 Find (i) t...

A:

Q: The standard deviation of a normal random variable X is $50 . Given that P(X ≤ $40) = .25, what is t...

A: Given data,σ=50x=40P(X ≤ $40) = .25μ=?

Q: When taking a 5 question multiple choice test, where each question has 4 possible answers, it would ...

A: Solution:

Q: By excel

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have ...

Q: A local church parish wants to raise money to add to their campus. In a sample from a previous fund ...

A: The random variable contribution of money follows normal distribution. We have to test whether the a...

Q: A writing test is given to incoming freshman at a state university before and after they complete a ...

A: The random variable attitudes follow normal distribution. There are two dependent samples which are ...

Q: QUESTION 5 You want to run a 2-tailed independent t-test on sample 1 (M = 42.8, SD = 1.8) and sample...

A:

Q: Use the values on the number line to find the sampling error.   An infinite number line, labeled fro...

A: From the provided information, Population mean (µ) = 4.62 Sample mean (x̅) = 4.1

Q: A data set includes data from 500 random tornadoes. The display from technology available below resu...

A: Correct answer is (D)

Q: The manager of a computer retails store is concerned that his suppliers have been giving him laptop ...

A: Given data,μ=3.9σ=0.4n=37

Q: A researcher wishes to examine the relationship between years of schooling completed and the number ...

A: Correct answer is When amount of schooling increases by one year, the number of pregnancies decrease...

Q: 6. CNNBC recently reported that the mean annual cost of auto insurance is 1013 dollars. Assume the ...

A: the probability that a single randomly selected value is less than 978 dollars.P(X &lt; 978) =  0.43...

Q: A factory owner randomly selected 20 bolts made by the machines in his shop. Thesemachines are meant...

A: According to the rule, I can give you answer for first 3 subparts.

Q: Every year favorite songs compete to be on a Top 200 list based upon sales and rankings by the exper...

A: given that,sample-1 : (121 , 122 , 117 , 120 , 120 , 121 , 118 , 120 , 117 , 119 , 121 , 122 , 119 ,...

Q: Let a shoe company know that 40% of the models it produces will be sold in good economic conditions,...

A: We know that, Expected value is given by, E(G)= (summation G*p(G)) Where G is the total of X,Y,Z and...

Q: The answer is. 32 but how do come up with that

A: This problem can be solved by finding z value.

Q: Q1. An anthropologist wants to collect data to determine whether the two different cultural groups t...

A:

Q: This question refers to excavations at a national monument. One question the archaeologists asked wa...

A: According to the answering guidelines, we can answer only three subparts of a question and the rest ...

Q: QUESTION 2 What percent of scores are above an ACT score of 19?

A: we have to find given probability percentage..

Q: The heights of students from a certain school are normally distributed wit mean 106 cm and standard ...

A: Given data,μ=106σ=8P(X&lt;x)=25.14%P(X&lt;x)=0.2514

Q: You are conducting a multinomial hypothesis test (αα = 0.05) for the claim that all 5 categories are...

A: To test the claim: All 5 categories are equally likely to be selected at 0.05 significance Level.  

Q: Assume that a sample is used to estimate a population proportion p. Find the 99.5% confidence interv...

A: given that,size(n)=279success rate ( p )= x/n = 0.24point of estimate = proportion = 0.24

Q: You roll a fair six-sided die twice. Find the probability of rolling a 5 the first time and a number...

A: question: You roll a fair six-sided die twice. Find the probability of rolling a 5 the first time an...

Q: From the community hospital and clinics around a city, the ages of dentists, nurses and physicians a...

A:

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.