The proportion of individuals insured by the All-Driver Automobile Insurance Company who received at least one traffic ticket during a five-year period is 0.15. Use the z-table. a. Show the sampling distribution of p if a random sample of 150 insured individuals is used to estimate the proportion having received at least one ticket. E(F) = 0.15 (to 2 decimals) o5 = 0.0292 (to 4 decimals) Can the sampling distribution of p be approximated by a normal distribution? Yes b. What is the probability that the sample proportion will be within +0.03 of the population proportion (to 4 decimals)? Round z-value to 2 decimals.

Q: Calculate the approximate proportion of house prices that fall between $1,000,000 and $2,000,00C…

A: The relative frequency histogram of house prices is given.

Q: Find the value of t0.005 for a t-distribution with 28 degrees of freedom.

A:

Q: What is the 90th percentile in a t-distribution with 12 degrees of freedom?   a. 1.356 b. 1.796 c.…

A: The kth percentile implies the value, below which k of the total observations lie.

Q: Decide whether the normal sampling distribution can be used. If it can be used, test the claim about…

A: Given data   sample size, n = 25 population proportion,p= 0.13 Significance level,…

Q: For a normal distribution,the proportion in the tail beyond z = 1.50,p = 0.0668. Based on this…

A: Given: Z = -1.50

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: As per our guidelines we are suppose to answer three sub parts. Given,sample…

Q: Use the Central Limit Theorem to find the mean and standard error of the mean of the indicated…

A:

Q: d. Find the 77th percentile for the mean score for this sample size. e. P(21.9204 < ữ < 22.6932) =…

A: d. The 77th percentile for the mean score for this sample size is,…

Q: Calculate the mean and standard deviation of ˆp, and plot its sampling distribution I n = 100 I n =…

A: Introduction: Denote p̂ as the sample proportion of people who prefer Candidate B, and p be the…

Q: Below, n is the sample size, p is the population proportion of successes, and X is the number of…

A:

Q: Find the standard error of the mean for each sampling situation (assuming a normal population).…

A:

Q: Find the mean and standard deviation of the sampling distribution of x

A: Given that sample size is n = 36 Mean = 71 And SD = 24

Q: For the frequency distribution shown, compute : mean , median , mode , mean deviation , sample…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: Given the frequency distribution below, calculate the following: P25, Q3, D4 Statistics Test Results…

A: The frequency distribution table is given,

Q: In a distribution with o = 5, a z-score of z = +2.00 corresponds to a location that is 10 points…

A:

Q: Formulate is it true? The sampling distribution of r = .8 becomes normal as N increases.

A: Central limit Theorem: If the sample size increases or the distribution of the population follows…

Q: that given data follows a Poisson distribution. Given that an average value is 7.5 per unit of…

A:

Q: The number of daily hits at the website of a travel agency is normally distributed with a mean of…

A: Given data,     μ=500     σ=48   a Px&lt;514=Px-μσ&lt;514-50048…

Q: Find the score for which 70% of the distribution's are a lies to the right?

A: P ( Z&gt;z ) =0.70 Find z = ?

Q: Use the normal distribution to the right to answer the questions.   ​(a) What percent of the scores…

A:

Q: with a mean score of 570 and SD of 70. Approximately what percent of scores are between : 6-35. The…

A:

Q: d. What is the mean of the sampling distribution of the sample mean (u)? [Use u= Hg] e. What is the…

A: If the population is normally distributed or the sample size is more than 30, then the sampling…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A:

Q: For any distribution, what is the z-score corresponding to the mean?​

A: The z-score of a random variable x is defined as follows: z = (x – µ)/σ. Here, µ and σ are the mean…

Q: Decide whether the normal sampling distribution can be used. If it can be used, test the claim about…

A: Given that,Clam: p &lt; 0.14

Q: Decide whether the normal sampling distribution can be used. If it can be used, test the claim about…

A: The random variable X follows binomial distribution. We have to use normal approximation to binomial…

Q: If the average number of defects per page is 2. Using Poisson distribution calculate the probability…

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

Q: In the following case, do you think the sample size is large enough to use the normal distribution…

A: Conditions for normal distribution: np≥5 n(1-p)≥5   Given information: n = 59 and p = 0.23

Q: Assume that a vertical line is drawn through a normal distribution at each of the following z-score…

A: For a normal distribution, a line divides the curve in two sections. The middle larger part is…

Q: Samples of size n were randomly selected from populations with means and variances given below. In…

A: Given, The mean and standard deviation for population. For first population, μ = 4        σ2 = 2…

Q: For any distribution, what is the z-score corresponding to the mean?

A:

Q: Consider the normal distribution IQs with a mean of 100 and a S.D of 16. What percentage of IQs are:…

A: Given,mean(μ)=100standard deviation(σ)=16

Q: 1. What is the 90th percentile of a t-distribution when the sample size is 1?

A: According to our policy we can answer only first part for remaining please repost the question.

Q: Find the standard deviation of the sampling distribution of sample means using the given…

A: According to the given information, X have mean µx = 70 and the standard deviation of σx = 12.

Q: a. Obtain the cdf of X. b. What is P(X ≤ .5)? c. Using the cdf from (a), what is P(.25 < X ≤ .5)?…

A: we have the pdf, f(x) = 90x8(1-x)= 90(x8-x9) for 0&lt;x&lt;1 we want to find, a. Obtain the cdf of…

Q: In the following case, do you think the sample size is large enough to use the normal distribution…

A: Given  n=59 p=0.23

Q: a. What is the distribution of X? X - N( b. What is the median seedless watermelon weight? kg. c.…

A: According to our guidelines, we can answer only three subparts so please repost the remaining parts.

Q: (h) Plot SE(p) versus p on graph paper and sketch a smooth curve through the points. For what value…

A: The formula to calculate standard error of p^ is:

Q: What is the 2.5th percentile in a t-distribution with a sample size of 7?     a. -2.776 b. 2.447 c.…

A: Value is find by using t table

Q: Decide whether the normal sampling distribution can be used. If it can be used, test the claim about…

A: We have to find the z-test statistics.

Q: Decide whether the normal sampling distribution can be used. If it can be used, test the claim about…

A: Solution: Given information: n= 100 Sample size p^= 0.23 Sample proportion p = 0.26 Population…

Q: What happens to the t-distribution as the sample size increases?

A: As we know that the t-distribution is affected by the sample size. As sample size increases the…

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A:

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: Given information is Mean annual salary(μ)=$178000standard deviation(σ)=$39000random sample(n)=36

Q: The number of years of education of self-employed individuals in the United States has a population…

A: Given that, Mean = 13.6 Standard deviation = 3 Sample size = 100

Q: A person who is interested in estimating the proportion of Reese’s Pieces that are orange collects a…

A: Hello there! there are more than three sub parts in the given question. According to our policies…

Q: The test scrores of a sample of 100 students have a symmetric mounded distribution with a mean score…

A:

Q: For each of the following rejection​ regions, sketch the sampling distribution of t and indicate the…

A: To Find: here we are using  the t distribution table to find the probability that A type I error…

Q: The number of defects in printed circuit boards is hypothesized to follow a distribution. A random…

A: From the given information, There are 4 categories. Let us consider, P1=P2=P3=P4=1/4 Consider…