The following data represent the age of the mother at childbirth for 1980 and 2007. (a) Approximate
Question:
(a) Approximate the population mean and standard deviation of age for mothers in 1980.
(b) Approximate the population mean and standard deviation of age for mothers in 2007.
(c) Which year has the higher mean age?
(d) Which year has more dispersion in age?
Transcribed Image Text:
1980 Births (thousands) 2007 Births (thousands) 10-14 15-19 20-24 25-29 30-34 35-39 40 44 45-49 9.8 551.9 1226.4 1108.2 549.9 40.7 23.2 7.0 488.5 1172.1 1298.2 1035.3 544.0 116.6 7.3
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 62% (16 reviews)
a 1980 We organize our computations of x i f i x i f i and x i 2 f i in the following table Wit...View the full answer
Answered By
Daniel Kimutai
I am a competent academic expert who delivers excellent writing content from various subjects that pertain to academics. It includes Electronics engineering, History, Economics, Government, Management, IT, Religion, English, Psychology, Sociology, among others. By using Grammarly and Turnitin tools, I make sure that the writing content is original and delivered in time. For seven years, I have worked as a freelance writer, and many scholars have achieved their career dreams through my assistance.
5.00+
1+ Reviews
10+ Question Solved
Related Book For
Question Posted:
Students also viewed these Statistics questions
-
The following data represent the age of the mother at the time of her first birth for a random sample of 30 mothers. (a) Construct a boxplot of the data. (b) Use the boxplot and quartiles to describe...
-
The following data represent the age Of U.S. presidents on their respective inauguration days(through Barack Obama). (a) Find the five-number summary (b) Construct a boxplot. (c) Comment on the shape...
-
The following data represent the age and average total cholesterol for adult males at various ages. Age . Total Cholesterol 27 .. 189 40 .. 205 50 .. 215 60 .. 210 70 .. 210 80 .. 194 (a) Using a...
-
Consider again examples 9.2 and 9.3 , and once again assume that there are two states of the world for each random variable, denoted by V L j , V H j and n L , n H . Denote the probabilities for...
-
State Tech's basketball team, the Fighting Logarithms, have a 70% foul-shooting percentage. (a) Write a formula for the exact probability that out of their next one hundred free throws, they will...
-
On January 1, 2019, Cage Company contracts to lease equipment for 5 years, agreeing to make a payment of $120,987 at the beginning of each year, starting January 1, 2019. The leased equipment is to...
-
Suppose the total volatility of returns on a stock is 25%. A linear model with two risk factors indicates that the stock has betas of 0.8 and 1.2 on the two risk factors. The factors have volatility...
-
Consider the following forecast results. Calculate MFE, MAD, and MAPE, using the data for the months January through June. Does the forecast model under- or over-forecast? MONTH ACTUAL DEMAND...
-
Trial Balance and end-of-period adjustments of SLM Co. on 31.12.2019 are given in Section 1 and Section 2. According to the information given, prepare: 1. End-of-period adjustments (40 P) 2. Income...
-
7-B1 Prepare Master Budget Flying Fish Kite Company, a small Woy Woy, Australia, firm that sells kites on the Web, wants a master budget for the 3 months beginning January 1, 20X2. It desires an...
-
The following data represent the male and female population, by age, of the United States in 2008. (a) Approximate the population mean and standard deviation of age for males. (b) Approximate the...
-
Approximate the median of the frequency distribution in Problem 1. Weight (grams) ....Number of Babies (thousands) 0-999 ........ 30 1000-1999 ...... 97 2000-2999 ....... 935 3000-3999 .......2698...
-
In, use a graphing calculator with the standard viewing window to graph each function. y = 0.1x 3 - 0.3x 2 - 2.4x + 3
-
Outline the advantages and disadvantages of using a DBMS over developing an application using files.
-
What else do we use state machine diagrams for, apart from modelling the state of interface objects?
-
Why is the class constructor private in the Singleton pattern?
-
List in your own words the three steps used in going from an unnormalized relation to a relation in third normal form.
-
Distinguish between task and technique, and give some examples of each.
-
A flow in which the velocity changes somewhere from subsonic (Ma < 1) to supersonic (Ma > 1), or the reverse, is called transonic. Equation (12.5-9) shows that this cannot occur in a...
-
Drainee purchases direct materials each month. Its payment history shows that 65% is paid in the month of purchase with the remaining balance paid the month after purchase. Prepare a cash payment...
-
In Problems evaluate each expression. 6!2!/4!
-
In Problems find the value of each factorial. 0!
-
The ability to determine the age of some individuals can be difficult if there are not quality government records of birth. Bone growth takes place at the growth plates at the end of long bones. Once...
-
Prepare a short report for David on the financial analysis completed. Your report should include: The results of your analysis Your recommendation based on the required rate of return, if the...
-
Michelle is a 47-year old woman who has not been to see any healthcare provider since the birth of her third child 6 years ago. She is considering making an appointment to discuss medical options for...
-
The starting salaries of recent graduates and their majors in college were surveyed. Specifically, 300 graduates were included in the survey. You conduct a test to determine whether majors and...
Study smarter with the SolutionInn App