Use the frequency distribution from Exercise 14 in Section 2-1 to construct a histogram. Does it appear to be the graph of data from a population with a normal distribution?

Q: Give the formula for calculating percentiles of a continuous distribution.

A: Here we have to give the formula for calculating percentile of a continuous distribution

Q: IQ scores form a normal distribution with u=100 and σ=15. Individuals with IQs between 90 and 110…

A: It is given that the mean is 100 and the standard deviation is 15.

Q: The table below shows the frequency distribution of the rainfall on 52 consecutive Mondays in a…

A: class frequency  0.00-0.19 23 0.20-0.39 11 0.40-0.59 6 0.60-0.79 2 0.80-0.99 6…

Q: Which of the following phrases is not consistent with central tendency as a statistical measure?…

A: 1) average score means it is mean. Mean is consistent with central tendency as a statistical measure

Q: What is the best way to evaluate the normal approximation of the variable?   a. Scatter plot…

A: The objective of the question is to identify the best method to evaluate the normal approximation of…

Q: he mean and variance for a standard normal distribution is:  A. mean = 1, variance = 0  B. mean =…

A: The expected value of a distribution is affected by an addition or subtraction or multiplication or…

Q: The scores from 50 psychology students that took a standardized test are summarized in the given…

A: The relative frequency of an individual class is defined as the ratio of the frequency of that class…

Q: The number of workers in six outlets of a fast-food restaurant is 12, 10, 11, 15, 12, and 14.…

A: Given data is12,10,11,15,12,14sample size(n)=6

Q: The Table 1 shows a sample of college students was asked how much they spent monthly on a cell phone…

A:

Q: The mean of the population is 50. The standard deviation is 10. (b) if a person's  percentile rank…

A:

Q: IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. Find the IQ…

A: Excel formula: =NORMINV(0.305,0,1)=-0.5100

Q: Which of the following statistics would be helpful for measuring dispersion? (the spread

A: Given problem Given that   Which of the following statistics would be helpful for measuring…

Q: Develop your idea about quartile. The following data refers to the monthly starting salaries in Taka…

A: The first quartile (or lower quartile or 25th percentile) is the median of the bottom half of the…

Q: A study on the body mass index (BMI) reported that the distribution of the BMI is lognormal for…

A: Let X be the women aged 35-45 P(X<24.5)=?

Q: Which measure(s) of central tendency, if any, are presented in this table?

A: The central tendency is a center or middle value of the probability distribution. The most commonly…

Q: Discuss the similarities and differences between a relative frequency histogram as a way to…

A: A relative frequency histogram is a way to represent the distribution of a sample by showing the…

Q: A social scientist asked a random sample of 50 students, "How many friends do you have on your…

A: From the regression output,Independent variable=number of friends on favourite social media…

Q: What is the standard deviation of the average fill volume of 100 cans?

A: We have given that the fill volume of cans are independent, normal random variables. The standard…

Q: 60 20 100 200 300 Length of hospital stay e 4.3 The distribution of length of stay in hospital…

A: Histogram: The histogram is an appropriate representation of the distribution of numerical data.…

Q: Consider the following data on blood pressure: Find the following statistics: 1 Median. 2 25th…

A: To find the median and Percentiles, first arrange the data into ascending order. If the number of…

Q: data freq 24 1 25 3 26 2 27 4 28 10 Find the following measures of central tendency. mean = median…

A:

Q: Develop a research question from the data collected that requires a chi square distribution test.…

A: Given information: The data represents the values of the required variables.

Q: This variable should be tested for Normality?   A. Predictor B. Outcome

A: Dependent variable and independent variable: The variable of interest, regarding which, the…

Q: Identify the​ t-statistic and P-value.

A: The sample size n is 23.

Q: Youth admissions to correctional services, by age and sex 2019-2020 Age at admission 12 year old 13…

A: Solution: From the given information,

Q: The is NOT a measure of central tendency, and the is NOT a measure of variation. range median mean…

A:

Q: Give a brief example of an empirical distribution of data.

A: This question is about providing a brief example of an empirical distribution of data.

Q: The ages of the patients of a pediatrician were surveyed, summarize and displayed in the…

A: Given that, The ages of the patients of a pediatrician were surveyed, summarize and displayed in the…

Q: (2) Look at the dotplot of the data below: 200 400 600 800 1000 1200 CHOL a. Estimate (don't…

A:

Q: The . distribution might be used if one cannot guess much about the process to involve in a…

A: If we know only the minimum and maximum values of the data then the most useful distribution for the…

Q: According to Our World in Data, male heights follow a normal distribution with µ =178.4 cm and o=…

A:

Q: The number of cybercrime recorded by an Investigation Agency for a 14-day period is shown. Compute…

A: Arrange the given data in ascending order23, 39,42,42,44,46,49,50,51,55,56,62,65,66sample size(n)=14

Q: esdays in a certain city. Use the frequency distribution to construct a histogram. Do a appear to…

A: We have given the frequency distribution of the rainfall on 52 consecutive Wednesdays in a certain…

Q: The incomes of math tutors in a tutoring center of a university are normally distributed with a mean…

A: Given,mean(μ)=$1100standard deviation(σ)=$150

Q: 2) Find the standard deviation of the grouped data Ages 51 - 60 41 - 50 3 10 15 31 - 40 21 - 30 11…

A: In grouped data, the observations are accumulated into groups or classes. These classes and the…

Q: Every year, the students at a school are given a musical aptitude test that rates them from 0 (no…

A: here we have to find out the sample standard deviation for given frequency distribution table . x…

Q: d. The p-value = (Please show your answer to 4 decimal places.)

A: From Part(c)With z-score =1.361,(right tailed )To find p-value using…