Ten policyholders file claims with CareFree Insurance. Three of these claims are fraudulent. Claims manager Earl Evans randomly selects three of the ten claims for thorough investigation. If x represents the number of fraudulent claims in Earl's sample, P(x=1) is 0.6957 0.5250 O 0.4410 0.3000

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A: Given observed frequency(O) table : Expected frequencies and Test statistics can be calculated as…

Q: Each person in a random sample of 20 students at a particular university was asked whether he or she…

A: From the given information, R  N  N  R  N  R  R  R  N  R  N  N  N  R  R  R  R  R  R  R Here, R…

Q: A state political analyst wanted to see whether there is an association between the region where a…

A: Expected count = Row total*Column totalOverall total

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A:

Q: A grocery store manager wants to know if displaying cranberries near the entrance to the store…

A: P1 : Proportion of shoppers who buy Cranberries when they are near the store entrance. P2 :…

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A:

Q: A Social Psychologist is interested in find difference in the anxiety sensitivity of M (Gen X). He…

A: This is a paired test,

Q: A random sample of 25,000 ACT test takers h 0.0008 0.0280 0.1240 19.5996

A: The margin of error can be calculated as: E=t×sn Where, sn=Standard errort=Critical value The…

Q: The population is the 6 employees in a physician's office. The number of possible samples of 2 that…

A: Giventotal no.of employees = 6

Q: 20. Find the z-score that corresponds to P15?

A: Here we need to compute the z score corresponding to the 15th percentile.

Q: A survey asked 3494 randomly selected high school seniors about their computer use. Among the 1,734…

A: We have given that,  Favorable cases (males use computers for three or more hours a day) = (X) = 677…

Q: f the sample size had been smaller, the power would have been smaller. O True O False

A: It can be shown that power will generally increase as sample size increases. As other planning…

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A:

Q: se Brianna's sample to estimate the number of red gumballs in the jar.

A: Given that  Class jar containing 200 gumballs of two different colors  (Red and green) Brianna draws…

Q: The results of a study that used an independent samples t-test was t(28) = 2.14, p = .01. Based on…

A: t(28) means that degree of freedom  = 28 Now, degree of freedom for a t-test one sample case  = n-1.

Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20…

A:

Q: Ten policyholders file claims with CareFree Insurance. Three of these claims are fraudulent. Claims…

A: Total claim = 10 Fraudulent claim = 3 true claim = 7

Q: ina previous poll, 35% of adults with children under the age of 18 reported that their family ate…

A: The given data is, p0=0.35, x= 361, n= 1088p^=xn=3611088=0.3318α=0.05

Q: When finding the t-value, how many degrees of freedom do we have from a sample size of n=10?

A: Degrees of freedom = n-1

Q: 7. A poll of 60 students selected at random at State University found that 12 were in favor of…

A:

Q: A university dean is interested in determining the proportion of students who receive some financial…

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Q: In the entire group of first-year statistics students, half own a calculator (h), and the rest don’t…

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Q: 1. Nationwide, the average total amount of student loan debt in 2012 is normallydistributed with a μ…

A: Given information Hypothesized mean µ = $29400 Sample size (n) = 36 Mean x̅ = $27400 Sample Standard…

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A: The sample proportion is computed as follows,  The value of z at 98% confidence level is 2.326,…

Q: B are defined on a common sample D30.56, find P(A and B).

A: Here use basic probability rule

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Q: A real estate agent surmises that the median rent for a one-bedroom apartment in a beach community…

A: The null and alternative hypothesis is, H0:M=$1500Ha:M>$1500 Define, S=Number of observation less…

Q: John works as a weld inspector in a shipyard. Because he keeps track of good and poor welds, he…

A: It is given that  p = 5% = 0.05 Sample size, n = 300 Z = (p^ - p)/√(p(1-p)/n) 0.012583057392118

Q: 3. Let Y be the sum of the four trait scores for a character chosen uniformly at random out of the…

A: Hint: Question just seems to be tricky but the answer is just simple as we need to know the basics…

Q: A study was commissioned to find t the residents in certain town. The s random sample of 114…

A:

Q: 3.) In a certain university in lloilo, a study was conducted to determine whether the IQ scores of…

A: Solution

Q: 6. A poll of 80 students selected at random at Midtown University found that 20 were in favor of a…

A:

Q: A manager wants to study the employees' absence behaviour in his company. He wishes to find the…

A: In the given situation, the sample size is less than 30 and the population standard deviation is not…

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A: a) The probability distribution table for x can be obtained as: x 1 2 3 4 5 P(x)…

Q: Decide if each of the following statements is True or False. If a sample of n = 10 scores is…

A: Solution: let x1,X2 ....X10 random samples of normal distribution (mean=mu, varience=sigma^2)…

Q: Sample for a Poll There are 15,524,971 adults in Florida. If The Gallup organization randomly…

A: The selections independent or dependent is obtained below: It is given that there are 15,524,971…

Q: Q2 A computer used by a 24-hour banking service is supposed to randomly assign each transaction to…

A:

Q: For each of the tests, what would be the conclusion if the test were carried out using the α = 0.05…

A: From the provided information, Sample size (n) = 36 Sample mean (x̄) = 117.0 Population standard…

Q: What is the P(t > -0.4) with a sample size of 13.

A:

Q: found that 65% of Florida voters support stricter gun laws. There are approximately 13 million…

A:

Q: In a simple random sample of size 100, there were 25 individuals in the category of interest.…

A: Denote p as the true proportion of individuals in the category of interest.

Q: ) reported the domestic airfare for business travel for the current year and the previous year.…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: A sample of n = 10 automobiles was selected, and each was subjected to a 5-mph crash test. Denoting…

A: we have to find proportion  of success...

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A: Hypothesis Testing: The value of the sample size is more than 30 and the aim is to compare the means…

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Q: wo separate samples, each with n = 30 scores, from the same population will produce identical…

A: Given information Given that, there are two samples collected of same size n=30 from the same…

Q: n a large population, 46% of the households own DVD recorders. A simple random sample of 100…

A: It is given that n=100 and p=0.46.

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A: given out of 40 fans, 6 fans  named Daren as the best player to find from 12000 fans how many say…

Q: Find the sample proportion of restaurant workers who had at least one other job

A:

Q: Drove when drinking alcohol. Results from the 2005 survey indicated that, during the 30 days…

A: H0 : Drinking Habit and  Race are independent. H1 : Drinking Habit and  Race are dependent.