In the 1992 presidential election, Alaska's 40 election districts averaged 2118 votes per district for President Clinton. The standard deviation was 577. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places. 1. Find the probability that a randomly selected district had between 2236 and 2434 votes for President Clinton.  2. Find the first quartile for votes for President Clinton. Round your answer to the nearest whole number.

Question

In the 1992 presidential election, Alaska's 40 election districts averaged 2118 votes per district for President Clinton. The standard deviation was 577. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places.

1. Find the probability that a randomly selected district had between 2236 and 2434 votes for President Clinton. 

2. Find the first quartile for votes for President Clinton. Round your answer to the nearest whole number. 

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Advanced Topics in Statistics

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Questions 1-3. Professor Ivy takes a poll of the nursing students and the culinary students and asks...

A:   Yes No Total Nursing 132 378 510 Culinary 44 56 100 Total 176 43...

Q: You intend to estimate a population mean μ with the following sample. 72.5 63.8 60.9 74.5 ...

A: The 99.5% confidence interval for the population mean, is required.  The data (sample) is given and ...

Q: One sample is selected to represent scores in treatment 1 and a second sample is used to represent s...

A: Concept: The items with Highest Mean difference and lowest variance will produce real difference bet...

Q: A research study comparing three treatments with n = 5 in each treatment produces T1 = 5, T2 = 10, T...

A: The number of treatments is given as 3, where sample size of each treatment group is n = 5.

Q: The percentage of protein in a certain brand of dog food is a normally distributed random variable w...

A: Click to see the answer

Q: A commercial jet aircraft has four engines. For an aircraft in flight to landsafely, at least two en...

A: Note - As per our Bned policy, we are allowed to answer only three sub parts at a time. So, kindly s...

Q: The dean of a university estimates that the mean number of classroom hours per week for​ full-time f...

A: Click to see the answer

Q: 3–49. The number of rescue calls received by a rescue squad in a city follows a Poissondistribution ...

A: Click to see the answer

Q: If z is a standard normal variable, find the probability that z lies between -2.41 and 0.

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ, where µ and σ are the mean ...

Q: 1. Nine hundred (900) teenage boys and 1500 teenage girls were randomly selected for a STEPS survey ...

A: Given: Sample size of teenage boys (n1) = 900 Sample size of teenage girls (n2)= 1500 Number of peop...

Q: help please

A: According to the interpretation of the stem and leaf plot, the maximum data entry is 85. The minimum...

Q: A sample of 263 students who were taking online courses were asked to describe their overall impress...

A: Click to see the answer

Q: What are the degrees of freedom associated with t in the following situation: the researcher is cond...

A: For a paired t-test(t-test for paired data,i.e., dependent samples), when the number of paired sampl...

Q: John receives a 65% on his math test assume that the average grade on the test for his class is 44% ...

A: The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random varia...

Q: The following are quality control data for a manufacturing process at Kensport Chemical Company. The...

A: The given data set: Sample X R 1 95.72 1.0 2 95.24 0.9 3 95.18 0.9 ...

Q: Which of the following is not one of the four steps of the hypothesis test?       Stat...

A: Click to see the answer

Q: TWO GROUPS OR ONE?Situations comparing two proportions are described. In each case, determine whethe...

A:  

Q: Suppose X1, X2,..., Xn are i.i.d. Poisson random variables with expected value A. It is well-known t...

A: We have, X1, X2, X3,…..Xn are i.i.d Poisson random variables with expected value λ

Q: Use the given statement to represent a claim. Write its complement and state which is Ho and which i...

A: Click to see the answer

Q: A) State the null and alternate hypothesis. B) Determine the rejection region using either classical...

A: (A) The test hypotheses are given below: Let p1 be the population proportion of defective parts in o...

Q: Let X be a normally distributed random variable with mean= 16 and standard deviation= 3. Find P(11 &...

A: Click to see the answer

Q: 1)a)A particular fruit's weights are normally distributed, with a mean of 684 grams and a standard d...

A: (a) Consider, Population mean (µ) = 684 Population standard deviation (σ) = 14 Sample size (n) = 10 ...

Q: The table below shows the soft drinks preferences of people in three age groups. If one of the 255 s...

A: Click to see the answer

Q: Let X ∼ N(μ,σ) and X ̄ be sample mean from 25 random samples, then we construct an interval x ̄ ± σ ...

A: Click to see the answer

Q: The random variable X has a uniform distribution with values between 14 and 22. What is the mean and...

A: Obtain the mean of the uniform distribution.   The mean of the uniform distribution is obtained belo...

Q: A salesperson finds that, in the long run, two out of three sales calls are successful. Twelve sales...

A: Click to see the answer

Q: Explain the concept of sampling distribution, standard errors, and statistical inference?

A: Infer means conclusions. Statistical inference draws conclusion about a given population or other co...

Q: A student was asked to find a 95% confidence interval for widget width using data from a random samp...

A: According to the provided data, the 95% confidence interval is provided as 13.1 < µ < 34.8 for...

Q: A salesperson goes door-to-door in a residential area to demonstrate the use of a new household appl...

A: Given information n = 18, p = 0.2107 X ~Bin (n = 18, p = 0.2107) The P.M.F for binomial distribution...

Q: A salesperson goes door-to-door in a residential area to demonstrate the useof a new household appli...

A: Click to see the answer

Q: For a normal random variable with mean 19,500 and standard deviation 400,find a point of the distrib...

A: Click to see the answer

Q: The mean score on a standard exam is 320 with a standard deviation of 40. Suppose 100scores are rand...

A: Click to see the answer

Q: A researcher wants to investigate the mean number of sex partners in the past 12 months for young pe...

A: Click to see the answer

Q: Statistics Question

A: a.)We know that 25% of the data falls below the first quartile. Here, we need to find the percentage...

Q: In a blood testing procedure, blood samples from 4 people are combined into one mixture. The mixture...

A: Obtain the probability that mixture will test positive.   The probability that that mixture will tes...

Q: Health insurers are beginning to offer telemedicine services online that replace the common office v...

A: The provided information is: The level of significance (α) = 0.05 The given data set is: 95 ...

Q: Under the standard normal curve, the area above the mean is

A: Click to see the answer

Q: The Gallup Poll asked 1015 U.S. adults whether they believed that people should pay sales tax on ite...

A: Let n denote the number of U.S. adults whether they believed that people should pay sales tax on ite...

Q: Statistics Question

A: Click to see the answer

Q: The following data represent the means for each treatment condition in a two factor experiment.  Not...

A: Click to see the answer

Q: Find the critical​ value(s) and rejection​ region(s) for the indicated​ t-test, level of significanc...

A: Click to see the answer

Q: ​ For the regression equation Ŷ = –2X + 6, what can be determined about the correlation between X an...

A: Click to see the answer

Q: Consider a problem of comparing the means of two population means. (If you are using a calculator to...

A: The provided information is: level of significance (L) is 0.05. For sample one,

Q: For a two-tailed hypothesis test evaluating a Pearson correlation, what is stated by the null hypoth...

A: Pearson correlation coefficient The population correlation coefficient is ρ The test is two tailed.

Q: An MBA graduate is applying for nine jobs, and believes that she has in each of the nine cases a con...

A: Given Information:  Probability of getting an offer i.e., p=0.48 and n=9 Let X denote the number of ...

Q: Employment data at a software company reveal that 50% of employees have a computer science degree, 4...

A: Obtain the probability that a randomly chosen employee is female or has a computer science degree.  ...

Q: Use technology and a​ t-test to test the claim about the population mean μ at the given level of sig...

A: Null hypothesis: µ≤79. Alternative hypothesis: µ>79. Correct answer is option (c). This is a righ...

Q: 7. Listed below are measured fuel consumption amounts (in miles per gallon) for a random sample of c...

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case yo...

Q: A sports team has a three game road trip. Use the tree diagram to answer the question.

A: The event E is, “They win exactly two games”. The outcomes in the sample space are, {WWW, WWL, WLW, ...

Q: Perform a Hypothesis Test using the P-value. a) Identify the claim and state the null hypothesis and...

A: Click to see the answer