In a recent poll, 150 people were asked if they liked dogs, and 88% said they did. Find the margin of error of this poll, at the 99% confidence level. Give your answer to three decimals

Q: A certain equipment has a MTBF of m= 300 hours. Assuming an exponential distribution of time to…

A: The answer is attached below,

Q: Based on a survey, assume that 31% of consumers are comfortable having drones deliver their…

A: From the above question The values of n is 6

Q: Many patients get concerned when a test involves injection of a radioactive material. For example…

A: Given data: .

Q: Determine (a) the probability that X will be on the interval (-a/2, a/2), (b) the quantile x0.75,…

A: As per bartlby guidelines we can answer only first three subpart and rest can be reposted

Q: In a survey, 11 people were asked how much they spent on their child's last birthday gift. The…

A: The summary of statistics is,

Q: Find the value of the test statistic z using z = The claim is that the proportion of drowning deaths…

A: Given that: Sample size, n = 681 Population proportion, p = 0.25 Sample proportion, p^=0.30

Q: A car company says that the mean gas believe the mean gas mileage is lower than this and find that a…

A: A car company claims that mean gas mileage of its luxary sedan is 21mpg, α =0.10

Q: A personnel director in a particular state claims that the mean annual income is greater in one of…

A: Given:A personnel director in a particular state claims that the mean annual income is greater in…

Q: Numerical facts about a termed population are called while those of a sample are

A: Here we have given the question about the population and sample. The given question is, Numrical…

Q: 4.28. If the probability density function of some measurements is found to be 0.02X for Xs in the…

A:

Q: 4.21. The following sample data was obtained. What is the expected ±3 sigma spread of the process,…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 300…

A: Obtain the 99% confidence interval for the proportion of adults residents who are parents in this…

Q: ܀ 4 ◆ V ** ◆ ܀ ܀ ܀ ܀ ܕ ܀ ♦ * gje ♦ .. gjo ♦♦ As shown above, a classic deck of cards is made up of…

A: Total number of cards = 52 The probability that 9 of clubs is selected is = 1/52 = 0.019

Q: A survey of 82 randomly selected students the population standard deviation is $56 per month.…

A: Given that  Sample size n =82 Sample mean =359 Population standard deviation =56

Q: A factorial experiment involving two levels of factor A and three levels of factor B resulted in the…

A: The given information is,Two factor A and B with different levels.α=0.05

Q: Next question When a man observed a sobriety checkpoint conducted by a police department, he saw 692…

A: Given: n = 692 X = 9 P(W) = 0.01301 Formula Used: P(W) = 1-P(W)

Q: An animal sanctuary houses a variety of animals. To understand the workload of the sanctuary's…

A: Solution

Q: following sample data was obtained. What e expected ±3 sigma spread of the process, uming normal…

A: Given as,          The B will be the correct answer.

Q: The time that it takes for the next train to come follows a uniform distribution with f(x) =1/20…

A: Assume that the random variable X is the time to take next trail to come.

Q: A telemarketing company knows that the daily average sales is 20. A new telemarketer who has just…

A: The question is about hypo. testing Given : No. of random sample of telemarketers ( n ) = 16 Sample…

Q: Assume that the amounts of weight that male college students gain during their freshman year are…

A: From the provided information, Mean (µ) = 1.1 Standard deviation (σ) = 5.6

Q: A student scores 80 in math which has a mean of 70 and standard deviation of 10. He also scores 85…

A: GivenStudent scores 80 in math with Mean(μ)=70standard deviation(σ)=10student scores 85 in english…

Q: 11. The marginal density functions for independent random variables X and Y are g(x) and h(y). Find…

A:

Q: 2. Suppose that the CPU time for an execution of a particular software package has a gamma…

A:

Q: The variation. curve describes are due to: a. Nonassignable causes b. Catastrophic failure c.…

A: We know that in general, the random things follow Normal distribution for e.g.-if you collect…

Q: Loved Solution The balance owed on your credit card triples from $800 to $2400 in 9 months. If the…

A: Given: The exponential function: f(X) = 800(1+0.13)X X  = 34.9 months

Q: 2. Suppose the professor wants the scores to be curved in a way that results in the following:…

A: Given: The professor wants the scores to be curved in a way that results in the following: Top 10%…

Q: Select one: O a. It is always equal to the z distri b. O c. It has a mean of 0. O d. It a symmetric…

A:

Q: The following is a regression of credit scores based on an individual's age, income, their location…

A: Given data, The following in a regression of credit score based on an individual age, income, their…

Q: When people smoke, the nicotine they absorb is converted to cotinine, which can be measured. A…

A:

Q: g technique. TH nce in the pop

A: The Kruskal-Wallis H test, commonly known as "one-way ANOVA on ranks," is a rank-based…

Q: Which one of the following is not a valid number for a probability? O a. 0.32 Ob. 17% O c. 0 Od.…

A: To find: Which one of the following in not a valid number for a probability.

Q: The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean…

A: Given data mean=2941 standard deviation=556

Q: 4.35. A randomly selected sample of bicycle helmets was tested for impact resistance. Given the data…

A: 4.35) Given: Sample size n=100 Sample mean x¯=276 Sample standard deviation s=15 Confidence level is…

Q: In a survey, 30 people were asked how much they spent on their child's last birthday gift. The…

A: Given that n =30 , x¯ = 34 ,s =8 ,α=0.01 Construct a confidence interval at a 99% confidence level.…

Q: When a sampling technique introduces a considerable amount of bias, increasing the sample size will…

A: Given:- In a sampling technique, a considerable amount of bias is introduced.  Increasing the sample…

Q: majority roup and 2 were from a minority group. What is the probability that both grants will be…

A: Given A National Merit Scholarship award committee recently claimed that each of 5 grant…

Q: A newsletter publisher believes that 29% of their readers own a laptop. Is there sufficient evidence…

A: Let p be the proportion for readers own a laptop  Given p=29%=0.29, level of significance ɑ=0.05

Q: Functionally important traits in animals tend to vary little from one individual to the next within…

A: Solution Given That, Functionally important traits in animals tend to vary little from one…

Q: Use this to predict the number of situps a person who watches 13 hours of TV can do (t

A: The regression equation is given by y = -1.153x + 39.487

Q: In an experiment, you are measuring a 20.0-gram ball using two different scales, and your data looks…

A: Given; scale-1 n = 4 Scale-2  n = 4 Formula Used: Sample Mean X = ∑Xin = X1+X2+X3+............+Xnn…

Q: Find the value of A' and B' Prove that, (A\B) U (B\A) U (ANB) = AUB. Find the value of A x (BUC)'

A: (i) A' =U-A=1,2,3,4,5,6,7-1,2,3=4,5,6,7 B'=U-B=1,2,3,4,5,6,7-2,4,6=1,3,5,7

Q: The fish population of a small lake is has been found and is summarized in the table below. One fish…

A: The question is about probability Given :

Q: 1 a) Hair color is an True False example of a qualitative data.

A: The data of interest is hair color.

Q: (s) for the linear regression model. (Round your answer to three decimal places) dif SS MS 1400000…

A:

Q: 2. A case of softdrinks has 12 bottles, three of which contain less than what is labeled per bottle…

A: (a)

Q: Travelers who have no intention of showing up often fail to cancel their hotel reservations in a…

A: The sample mean is calculated as follows: x=∑xn  =18+16+16+16+14+18+16+18+14+1910  =16.5

Q: Terri Vogel, an amateur motorcycle racer, averages 129.23 seconds per 2.5 mile lap (in a 7 lap race)…

A: Given: Mean μ=129.23 Standard deviation σ=2.28

Q: Determine the P-value for a test of significance where Ho : μ = 15 Ha:μ 15 and a random sample of 16…

A: Given that  Sample size (n) = 16 Sample mean ( x¯) = 15.2249 Sample standard deviation (s) = 0.4…

Q: . According to a genetic theory, there is a 10% chance that a randomly selected person from a large…

A: Given info: According to a genetic theory, there is a 10% chance that a randomly selected person…