In a city, 70% of the people prefer Candidate A. Suppose 30 people from this city were sampled.  Use the normal approximation to the binomial distribution to estimate: What is the probability that 80% or more of this sample will prefer Candidate A?  What is the probability that 45% or more of this sample will prefer some other candidate?

Q: The probability of getting exactly x success is n trails is denoted by, P(X=x)=?

A:

Q: Find the critical t value that corresponds to 50% confidence, assume 26 degrees of freedom.

A: Given: confidence level, c =50% = 0.50 df =26

Q: We are given a deck of 52 playing cards. We pick two cards from the deck uniformly at random, one ...

A: Given that - We are given a deck of 52 playing cards.  We pick two cards from the deck uniformly at...

Q: Using a 98% confidence level, determine a confidence interval for the mean lifespan of all Florida M...

A:

Q: Suppose that P(A) = 0.29, P(B) = 0.66, and P(B|A) = 0.13. Find the probability that %3D both A and B...

A:

Q: Given a normal distribution whose mean is 590 and whose standard deviation is 74, find the probabili...

A:

Q: Considering a c chart with LCL=0.513 & UCL=19.487, what is the probability of NOT detecting the mean...

A: Given that 

Q: n a sample of 59 business trips taken by employees in the HR department, a company finds that the av...

A:

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

A:

Q: Construct the confidence interval for the population mean u. c = 0.98, x= 4.2, o = 0.6, and n= 57 A ...

A:

Q: pls answer D thank u

A: Given The population has following elements: 6, 9, 12, 15, 18 and 21 Samples of size 5 are to be dra...

Q: 3. Assume that you have a random sample of 100 countries and you are interested in unemployment rate...

A: Given that  x̄ = 6.7 ,  s = 1.9 , n = 100 Note: According to bartleby experts question answers guide...

Q: what is random variable? 2.can you give me an example of discrete random variable? 3.can you give ...

A: here use definition of terms given

Q: A researcher wants to see if the amount of water a person drinks relates to the temperature outside....

A: Correlation and Scatterplot A Correlation is a statistical tool that describes how closely two varia...

Q: The lifetime of a certain brand of battery is known to have a standard deviation of 23 hours. Suppos...

A: Introduction: It is required to obtain the 90% confidence interval for the true mean lifetime of all...

Q: 1. What is the difference between the t-statistic you calculate from your sample and teritical that ...

A: We have given that the statement about t-statistic calculated from the sample and t-critical value f...

Q: How many  different ways can 5 out of 8 different shirts, 4 out of 10 different pairs of slacks, and...

A:

Q: An avid Mobile Legends player claims that he wins more when using SUPPORT heroes compared with other...

A: Since, we can answer up to three sub-parts of a problem, we'll be answering the first three sub-part...

Q: The data in the scatter plot below represents the selling price of a home plotted against the list p...

A: Given :  fitted regression line from the scatter plot is y=x-10  y =selling price of home  x=listed ...

Q: We have a sample X1, X2, X3 of independent variables from a distribution with density fa(x) = x"- fo...

A: Solution

Q: Discussion Topics: 1. Copy and paste the inverse cumulative distribution function figure. 2. What is...

A: The area to the right of z is 0.68. The area to the left of z is 1-0.68=0.32.

Q: We have one (1) bin with balls. The bin contains twelve balls, three red, four green, and five blue....

A: The formula for combination is nCr = n! / [r! (n – r)!] = [n (n – 1) … (n – r + 1)]/r!. Explanation:...

Q: Analysis of 300 randomly selected accounts      receivable of a firm by an auditor show that 30 are ...

A:

Q: Use the data set for number of pets. A. Construct and graph the discrete probability distribution fr...

A: Discrete Probability Distribution: Discrete probability distribution is a  list of each potential va...

Q: The Business College Computing Center wants to determine the proportion of business students who hav...

A:

Q: In marketing children’s products, it is extremely important to produce television commercials that h...

A: Given: Toys/Games Food/Candy Children's Clothing 42 55 30 45 58 35 48 52 42 40 60 32 50...

Q: What is the relationship between the population mean and the mean of the distribution of sample mean...

A: Mean is the avg. of the given numbers.

Q: If the alternative hypothesis was H1: µA # µB (that is, you are doing a two-tailed test), what was t...

A: Given that  Test statistic t =2.70 Degree of freedom =df =15  

Q: We surveyed 48 people in an attempt to determine the proportion of Americans who lease a vehicle. 10...

A:

Q: For the following population, calculate the mean, median, mode, variance, standard deviation, coeffi...

A: Use EXCEL Procedure for finding the given values.   Follow the instruction to obtain the values:   ...

Q: According to a report from a business intelligence company, smartphone owners are using an average o...

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

Q: A coin is tossed eight times. what is the probability that exactly 5 heads will occur?(Hint: Use Bin...

A: Let X be the number of heads  from binomial distribution with probability of getting head (p)= 1/2 =...

Q: For X with u = 6, o = 9 and a sample size of 44, P(X < 7) = Note: round your z score to two decimals...

A:

Q: ect all that apply. Which of the following pairs are independent events?   Question 9 options:   a...

A: We know that  Independent events :  Events whose occurrence is not dependent on any other event.   G...

Q: Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biol...

A: We have given that the confidence interval (4.0, 4.8) when estimating the mean height ( in cms ) of ...

Q: 80. The standard deviation of the population is known to be $66. Assume that the population is inite...

A:

Q: Are Republicans just as likely as Democrats to display the American flag in front of their residence...

A:

Q: ural towns give a life expectancy of x, = 72.6 years with a standard deviation of s, = 6.66 years. A...

A: Given, For rural towns: For urban towns: Significance level,           

Q: For the following frequency table, midpoint and relative frequency of the second class, class width ...

A: Class width can be find by subtracting lower limit from previous lower limit 

Q: Estimate the shear resistance for a normal stre

A: Regression Equation: Excel Procedure: Enter X and Y in Excel&gt;Data&gt;Data Analysis&gt; ‘Regressio...

Q: Clocking the Cheetah. The cheetah (Acinonyx jubatus)isthe fastest land mammal and is highly speciali...

A: The random variable top speed follows normal distribution. We have to construct 95% confidence inter...

Q: Given in the table are the BMI statistics for random samples of men and women. Assume that the two s...

A:

Q: Question 18  Bayes Theorem Formula?

A: We are asking about Bayes' Theorem .

Q: The graph of two independent factor levels that intersect with each other indicates that ___________...

A: Consider the graph of two independent factor levels that intersect with each other. We have to choos...

Q: The director of student services at Oxnard College is interested in whether women are more likely to...

A: There are two independent samples which are women and men. We have to test whether women are more li...

Q: IV. Another physical fitness test is conducted one month later. However, only 9 of the students took...

A: Given data: 23, 54, 15, 32, 16, 26, 47, 9, 35 (a) The objective is to find the first, second and thi...

Q: A research center claims that at least 31% of adults in a certain country think that their taxes wil...

A:

Q: In general, what characteristics of the difference scores are most likely to produce a significant t...

A: We have given statement  The characteristics of the difference scores are most likely to produce a s...

Q: The IQ scores for a random sample of subjects with low lead levels in their blood and another random...

A: There are two independent samples which are low lead level and high lead level. We have to test whet...

Q: 1. The proportion of people who responded to a certain mail-order solicitation is a (2(x+2) 2,0 <x<1...

A: HERE AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION  here given pdf of x