The following in a screeplot of a PCA analysis. How many PCs would you keep? Why?

Q: Ell surveyed some teenagers and adults on whether they prefer apples, oranges, or bananas. His…

A: The given table is -

Q: 8. For a moderately skewed data, the arithmetic mean is 200, the coefficient of variation is 8 and…

A: Given that ; Mean (M) = 200 C. O. V represent coefficient of variation= 8 Karl Pearson's coefficient…

Q: A small start-up company has 10 employees, whose salaries combined are $900,000. If everyone has…

A: Given, A small start-up company has 10 employees, whose salaries combined are $900,000.

Q: The following data was taken on a sample of 121 students to see the proportions of left and right…

A: From the given information in the table, we can see that Total no. of students in the sample =121…

Q: Q1-2: Given the following data from a sample of sizen 7 12 749073 The median is Select one: а. 6 b.…

A:

Q: Find out by interpolation from the following data the number of workers earning $ 24 of more but…

A: Given: Earning less than ($) Number of workers 20 296 25 599 30 804 35 918 40 966

Q: Zhou and Vohs (2009) published a study showing that handling money reduces the perception of pain.…

A: The random variable is pain. There are two independent samples which are counting money and counting…

Q: A survey of B2B marketers (marketers that focus primarily on attracting businesses) and B2C…

A:

Q: The following data represent the monthly phone use, in minutes, of a customer enrolled in a fraud…

A: Solution: The observations in increasing order are 302, 312, 313, 335, 352, 381, 383, 417, 421, 427,…

Q: For the data set below, what is the P(X greather than or equal to 1)?  Give your answer as 0.XX…

A:

Q: The following tables show the make-up of students in a school's math club. Male Female Totals…

A: For the solution follow the next steps.

Q: Find out by interpolation from the following data the number of workers earning $24 or more but less…

A:

Q: Which of the following is not a Reliability Index O a. FOR O b. LOLP O c. LOEP O d. Reserve Margin

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: You work for an insurance company and are studying the relationship between types of crashes and the…

A:

Q: In a medical study, two groups had the following summary statistics regarding their heights. Group…

A:

Q: The following table represents the highest educational attainment of all ad

A: Given, The table which represents the highest educational attainment of all adult in a certain tow.…

Q: 12 13 14 15 16 17 18 data Based on the boxplot above, identify the 5 number summary

A:

Q: Consider the following table: Source SS DF MS Test Statistic Regression 6 745.77 Error…

A: Given Source SS DF MS Test Statistic Regression    6 745.77    Error    ? 788.51   Total…

Q: Holding everything else constant, what would happen if the sample size had been greater?

A: Goofy Marketing Solutions conducted a survey among 16 randomly selected visitors to the newly opened…

Q: The following data gives the number of battery sales by one of the leading automobi company over the…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: what kind of design do you have

A: The One-Way ANOVA is usually accustomed test the following: Statistical differences among the means…

Q: The Fish and Game Department stocked a lake with fish in the following proportions: 30% catfish, 15%…

A: a) The value of alpha is 0.05.

Q: If a regression study reports the following information F(1,98)=2.34, p<.05, how many people are in…

A: The degree of freedom for F ratio is (k-1, N-k), where k is the number of treatment conditions and N…

Q: QUESTION 4 A men's shop with an initial markup of 59% had markdowns of 10%, employee discounts of…

A:

Q: Which of the following is the sample grand mea

A: Sample mean is defined as the sum of observation divided by number of observation.

Q: A study of US residents is conducted to assess the relationship between gender and if they have…

A: Test is that whether there is relationship between gender and if they have cardiomyopathy.

Q: s the following a sample research subject for qualitative or quantitative research? If it is…

A: Qualitative Research: In qualitative research, the variables are in the form of categories not in…

Q: What is R and why is there coding for R in basic statistics?

A: R is a statistical computing programming language that is designed only for statistical purposes.

Q: A simple study from a local high school is interested in determining which grade has the most car…

A:

Q: money and 0 for the plain paper), and then compute the correlation. ∑X ∑Y ∑XY SSXX SSYY SP r…

A: Counting Money (X) Counting Paper (Y) (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 7…

Q: The following data represent the square footage of 10 three-bedroom condos for sale in Hilton Head,…

A: We first need to rearrange the given data set, 1126,1167,1264,1300,1321,1559,1625,1676,1858,2058

Q: The following is an example of what type of error? The sample suggests that the food is not safe,…

A: The type I erpor is defined as rejecting the null hypothesis when it is true. The type II error is…

Q: Which of the following is not a statistical question? How old are the students in my school? How…

A: It is an important part of statistics. It is widely used.

Q: What is the following table called?

A: It is given that A table which contains some intervals with number of values in these intervals.

Q: Using a sample of 1801 black individuals, the following earnings equation has been estimated: 7.059…

A: The answer is explained below

Q: Hallam, Price, and Katsarou (2002) investigated the influence of background noise on classroom…

A: Null and alternate hypotheses: The investigator is specifically interested to test whether there is…

Q: Is there convincing evidence that the proportions of those who would fall into each of the hormone…

A: The expected values are,   None Esterified Estrogen Conjugated Equine Estrogen Total Venous…

Q: a) The middle 50% of responders were within how many years of one another? b) In which quartile are…

A: here from given  Box plot  minimum = 17  Q1 =  18  Q2 =  22  Q3 = 25 Maximum =  31

Q: A small warehouse employs these full time positions (approximately 40 hours a week) a supervisor at…

A:

Q: Refer to the chart given below and answer Which day showed the greatest gain?

A: We need to find which day have the gratest gain when compared to the previous day.   Gain is denoted…

Q: You work for an insurance company and are studying the relationship between types of crashes and the…

A:

Q: Which of the seven attitudes was (were) statistically significant at the strongest level? Provide a…

A: Decision Rule: If p-value ≤ α, then reject the null hypothesis(statistically significant). Let us…

Q: What is the degree of freedom (sd) in the analysis of a 4-by-5-dimensional table that is summarized…

A: The degrees of freedom can be calculated by subtracting the number of relations from the number of…

Q: The following data represents the ages of 40 emplovees in one of the

A: Arrange the given values in ascending order: 19, 19, 20, 21, 22, 22, 22, 22, 22, 22, 23, 24, 24, 24,…

Q: Which of the following question(s) can be better answered using data in order to reach an…

A: Introduction: It is required to identify the question(s) among the given questions, which can be…

Q: Given the following numbers, 2, 2, 3, 2, 4, 8, 0 Find:  d. The variance

A:

Q: The manager of a computer network has collected data on the number of times that service has been…

A: Level of significance is 0.01 df=number of categories-1   =7-1   =6 Critical value=16.81, from the…

Q: For a study that consists of 30 individuals in the 5 groups. What would the q in the HSD formula…

A: The correct option is: (3) 3.90. Here, the number of groups (k) is 5.There are 30 individuals in…

Q: In a recent survey conducted, a random sample of adults 18 years of age or older living in a certain…

A: Given : Observed frequency oi   Democrats independent republicans Total Positive 237 61 146 444…

Q: -One Sample Dichotomous Outcome- Suppose a similar study was conducted two years ago and found that…

A: Giventhe prevalance of smoking among freshman = 27% = 0.27We assume to use 95% confidence interval…