The average income in Boston is 6200 witha standard deviation of 8000, while the average income in Chicago is 48000 witha standard deviation of 5000. A randomly selected individual in Boston has an income of 68000 and a randomly individual in Chicago has an income of 54000.  Which individual has a relatively higher income for their respective city-which person has a higher z score.

Q: A manufacturer knows that their items have a normally distributed length, with a mean of 6.4 inches,…

A: Given Mean=6.4 Standard deviations=0.5

Q: 1.  Assume that thermometer readings are normally distributed with a mean of 0 degrees C and a…

A: Given that  μ = 0 degree celsius ? = 1.00 degree celsius By using standard normal distribution we…

Q: INSTRUCTION: Classify the following researches based on the different types of research. NOTE: (no…

A: A. Experimental  B. Experimental C. Non experimental

Q: If you are told a population has a mean of 25 and a variance of 0, what must you conclude? Someone…

A:

Q: Given a normal distribution with μ=50 and σ=5​, and given you select a sample of n=100​, There is a…

A:

Q: A random sample of size 21 was taken from a normal population. The sample average was 9.87 and the…

A:

Q: I am stuck on question 5. Can't figure how to solve it 5. Refer to the eight weeks of actual data…

A: Given data

Q: Determine the P-value for a test of significance where Ho : μ = 15 Ha:μ 15 and a random sample of 16…

A: Given that  Sample size (n) = 16 Sample mean ( x¯) = 15.2249 Sample standard deviation (s) = 0.4…

Q: On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of…

A:

Q: Using the data in the table below, construct a weighted 3-Period Moving Average  Period       Actual…

A:

Q: Assume that when adults with smartphones are randomly selected, 41% use them in meetings or classes.…

A: Given: About 41% of adults use their smartphones in meetings or classes. 15 smartphone users are…

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 67…

A: Given data: Mean = 67 Standard deviation  = 15

Q: If n=210 and p' (p-prime) = 0.41, construct a 99% confidence interval. Give your answers to three…

A:

Q: Assume that the amounts of weight that male college students gain during their freshman year are…

A: From the provided information, Mean (µ) = 1.1 Standard deviation (σ) = 5.6

Q: A random sample of 500 adult residents of Maricopa County found that 361 were in favor of increasing…

A: It is given that, a random sample of 500 adult residents of Maricopa country found that 361 were…

Q: Almost everyone who regularly drives his or her car in a large North American City agrees that…

A: It is given that: x¯ sample mean=17.2n sample size=100σ population standard deviation=6.2

Q: 2. For the following information on a data set: Relative Freq .02 .01 Measurement Class .00- .75…

A: The relative frequencies of the measurement class are given.

Q: A bank Manager developed a new System to reduce the time customers spend waiting for a teller…

A: Null and alternative hypotheses: Null hypothesis: Null hypothesis is a statement which is tested for…

Q: In the country of United States of Heightlandia, the height measurements of ten-year-old children…

A: Given problem is normal distribution Let X: Height of children Mean=μ=55.7 Standard deviation=σ=9…

Q: The heights of adult men in America are normally distributed, with a mean of 69.8 inches and a…

A: GivenThe heights of adult men in America are normally distributed withMean(μ)=69.8standard…

Q: The breaking strengths of cables produced by a certain manufacturer have historically had a mean of…

A: The provided information is x¯=1756σ=50n=90α=0.05The null and alternative hypothesis is…

Q: Computes, the sample s.d. for the data set.

A:

Q: A car company says that the mean gas mileage for its luxury sedan is 21 mpg. You believe the mean…

A: Suppose μ is the true mean gas mileage for the car company’s luxury sedan.

Q: 2. For the following information on a data set: Measurement Class .00-.75 75-1.50 1.50-2.25…

A: The given frequency distribution table is,

Q: Sam is trying out for a local bowling team. They require Sam to score an average of 200 per game. If…

A: Given,sample size(n)=10sample mean(x¯)=197population standard deviation(σ)=7population mean(μ)=200

Q: response. Processed For Hi

A: In general, we reject the null hypothesis when test statistic will  be greater than the critical…

Q: Assume that when adults with smartphones are randomly selected, 41% use them in meetings or classes.…

A: Given datan=15p=41%

Q: 3. Travelers who have no intention of showing up often fail to cancel their hotel reservations in a…

A:

Q: In a writing course, the professor surveyed the students to see the literature genres they like. The…

A: Given a venn diagram which shows the surveyed the students to see the literature genres they like.

Q: In a recent poll, 550 people were asked if they liked dogs, and 10% said they did. Find the margin…

A: Givensample size(n)=550p^=10%=0.10confidence level=99%

Q: What are the advantages and disadvantages of using internal static analysis in your organisation?

A: Answer:      It can find weaknesses in the code at the exact location. It can be conducted by…

Q: In a test of the effectiveness of garlic for lowering cholesterol, 42 subjects were treated with…

A: In the given, the confidence interval of the before and after use of garlic for lowering cholesterol…

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The…

A: Given data isMean(x)=47standard deviation(s)=9sample size(n)=17confidence interval=98%

Q: Let Y₁ 1 X=(x,-X₂), where X, and X₂ are independent random variables and each of them is distributed…

A: Given that the independent random variables X1 and X2 follows χ22 distribution.

Q: The probability of winning a large stuffed animal in the ring-toss game at a fair is 10%. a) Using a…

A: a) For large sample size (n>30), binomial distribution can be approximated to normal distribution…

Q: In a test of a gender-selection technique, results consisted of 226 baby girls and 13 baby boys.…

A: The answer is attached below,

Q: The lengths of pregnancies in a small rural village are normally distributed with a mean of 261 days…

A:

Q: Source of Variation Treatments Error Total ܓ =ܨ ܢܕ "ܨ ܐܐ Tܕ ܐܐ ܙ ܕܐ PPPPPs Ob The null hypothesis…

A: From ANOVA table  Degree of freedom for treatment=dftreatment=3

Q: If the US population was 329.5 million in 2020, what percentage of the population was incarcerated…

A: Answer:

Q: A test was given to a group of students. The grades and gender are summarized below C Total A B Male…

A: The following information has been given:   A B C Total Male 13 9 3 25 Female 14 20 17 51…

Q: A particular fruit's weights are normally distributed, with a mean of 539 grams and a standard…

A: Given data: Mean = 539 Standard deviation  = 13 Sample size = 15

Q: If you have a set of samples S= 0, 0, 1, 0, 1, 0 from a binomial distribution where P(x=0) = 1-μ and…

A: Given: A sample S=0, 0, 1, 0, 1, 0 is from a Binomial distribution where Px=0=1-μ and Px=1=μ.

Q: Which of the following is not a requirement for the two sample test of means for independent…

A: 2 sample test of means not have a requirement equal population standard deviation

Q: The government of a town needs to determine if the city's residents will support the construction of…

A: The government of a town needs to determine if the city's residents will support the construction of…

Q: The average number of words in a romance novel is 64,165 and the standard deviation is 17,215.…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01.…

A: Given,sample size(n)=227sample mean(M)=78.2sample standard…

Q: Explain with the aid of examples, the meaning of the following in context of research design: a.…

A: Comment “Since you have asked multiple questions, we will solve the first question for you. If you…

Q: Let X represent the number of games (out of 840) that you win. Find the standard deviation for the…

A: It is given that  Population Proportion, p = 0.48 Sample size, n = 840 Mean, μ = np = 403.2

Q: Suppose that the amount of time that students spend studying in the library in one sitting is…

A: Since you have posted a question with multiple sub-parts, we will solve first 3 sub-parts for you.…

Q: d) Suppose the relative frequency distribution for the data is bell-shaped, then what is the 16th…

A: