Business Weekly conducted a survey of recent graduates from the top MBA programs. On the basis of the survey, assume that 65% of the recent graduates annual salary exceeds $75000. Suppose you take a simple random sample of 92 recent graduates. Note: round all z scores to 2 decimal places and all other numbers to 4 decimal places. Find the probability that more than 55% of the 92 recent graduates have an annual salary exceeding $75000. Beyond representative sampling, what assumptions are needed to satisfy the requirements for this problem? X∼normal or n≥30 X∼binomial and both np and nqat least 5 X∼normal and n≥30 X∼binomial and at least 5 successes and failures

Q: At TCNJ, 35% of the engineering majors belong to ethnic minorities. If 6 students are selected at…

A: Given,n=6p=0.35X=no.of students belong to ethnic minorityX~Binomial (n=6 , p=0.35)P(X=x)=nx pxqn-x…

Q: According to a 2009 Reader's Digest article, people throw away about 13% of what they buy at the…

A:

Q: According to the Department of Education, 60% of college students enjoy taking Statistics. Suppose…

A: Let  X be the number of students who enjoy taking Statistics in a sample of 200. Given n = 200…

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

A: Solution: Given information: p= 0.80 population proportion of the recent graduates annual salary…

Q: A manufacturing machine has a 5% defect rate. If 9 items are chosen at random, what is the…

A: Given:  5% defect rate. If 9 items are chosen at random

Q: Suppose 56% of politicians are lawyers. If a random sample of size 564 is selected, what is the…

A: From the provided information, 56% of politicians are lawyers that is p = 0.56 Sample size (n) = 546

Q: According to a 2009 Reader's Digest article, people throw away about 11% of what they buy at the…

A: We have to find given probability

Q: The table summarizes results from 979 pedestrian deaths that were caused by automobile accidents.…

A: Where E denotes the event and S denotes the sample space.

Q: One thousand (1000) elderly males and 2500 elderly females were randomly selected for a dementia…

A: Introduction: It is given that among a sample of 1000 elderly males, 210 elderly males are diagnosed…

Q: The table summarizes results from 987 pedestrian deaths that were caused by autornobile accidents.…

A:

Q: Find the probability that less than 90% of the 84 recent graduates have an annual salary exceeding…

A: (1) Obtain the probability that less than 80% of the 84 recent graduates have an annual salary…

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: A courier service company wishes to estimate the proportion of people in various states that will…

A: Consider that p is population proportion of people in various states that will use the courier…

Q: According to a 2009 Reader's Digest article, people throw away approximately 12% of what they buy at…

A: Given Data population proportion,p = 0.12 sample size n = 171

Q: What is the probability that a randomly selected score exceeds 1170?

A: Let X be the SAT score ( for verbal and math).It is given that X has normal distribution with mean…

Q: 11 of the 744 digital video recorders​ (DVRs) in an inventory are known to be defective. What is the…

A: From the provided information,11 of the 744 digital video recorders​ (DVRs) in an inventory are…

Q: The number of power outages at a retirement center has a mean of “a+1” outages per year. What is the…

A: The objective of this question is to find the probability of exactly 3 outages in a year and the…

Q: The amount of time, in seconds, a cashier spends with a customer during lunch time at a fast food…

A: The average amount of time spent with a customer is 160 seconds.

Q: A researcher wants to estimate the percentage of adults in Georgia that have not graduated from high…

A: As we know Statistics represents sample and Parameter represents population.

Q: survey, assume that 75% of the recent graduates annual salary exceeds $80000. Suppose you take a…

A:

Q: According to a 2009 Reader's Digest article, people throw away about 7% of what they buy at the…

A: Given: Population proportion (p) = 7%  = 0.07    Sample proportion                  Sample size (n)…

Q: What is the probability that the sample mean tax is between 7600 8000

A:

Q: The amount of time a customer spends in a convenience store can be modeled by an exponential…

A:

Q: Suppose 56% of politicians are lawyers. If a random sample of size 564 is selected, what is the…

A: Given: 56% of politicians are lawyers that is proportion (p) = 0.56 Sample size (n) = 564

Q: A hotel manager calculates that 12% of the hotel rooms are booked. If the manager is right, what…

A: From the given information,P be the probability that hotel rooms are booked = 0.12.Sample size (n)…

Q: According to a 2009 Reader's Digest article, people throw away about 14% of what they buy at the…

A: Given data, p=14% =0.14 n=144 P(p<0.2)=?

Q: Assume that when adults with smartphones are randomly​ selected, 42​% use them in meetings or…

A: Here, theoretically, if we consider using of smartphones during meetings or classes, when selected…

Q: A phone company reports that 52 % of its customers subscribe to their high-speed internet service.…

A:

Q: A study indicates that 80% of households have have a dog. You randomly sample 7 households. Find the…

A:

Q: a fast food center wants to estimate the proportion of people in its city that will purchase its…

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

A:

Q: Suppose 56% of the doctors in a hospital are surgeons. If a sample of 417 doctors is selected,…

A: given:p = population proportion p = 56% = 56/100 = 0.56 n = sample size n = 417 In order to find the…

Q: Goofy's fast food center wishes to estimate the proportion of people in its city that will purchase…

A: Consider that p is population proportion of people in its city that will purchase its products.

Q: According to a 2009 Reader's Digest article, people throw away about 10% of what they buy at the…

A: Given information : Population proportion = p= 10% = 0.10 q = 1 - p    = 1 - 0.10 = 0.90 Sample size…

Q: The amount of time people spend at the gym follows a uniform distribution from 45 to 90 minutes.…

A: From the provided information, The amount of time people spend at the gym is uniformly distributed…

Q: The table summarizes results from 988 pedestrian deaths that were caused by automobile accidents.…

A: Total (231+611)= 842 cases involved drivers that were not intoxicated.  We can pick two cases from…

Q: Suppose 50 % of politicians are lawyers. If a random sample of size 518 is selected, what is the…

A: Consider that p is proportion of all politicians.

Q: A survey on customer satisfaction at a bank is carried out by asking everyone who visits the bank on…

A: Sampling methods: In simple random sampling, all the units in the population have equal chance of…

Q: A study indicates that 70% of teenagers have have a tattoo. You randomly sample 9 teenagers. Find…

A: The information provided in the question are as follows :  Proportion of teenagers those have…

Q: A film distribution manager calculates that 4% of the films released are flops.If the manager is…

A: The given data: Probability that the films released are flops, p = 0.04 Number of samples, n= 747…

Q: A poll showed that 80.4% of Americans say they believe that you lose your body heat fastest through…

A: Given, P(they believe that you lose your body heat fastest through your head) = 80.4%=0.804   P(they…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.