HCD 300 - Homework 8 Exam #1 Questions with correct
answers
In the United States, mothers who live in poverty generally have babies with
lower birthweight than women who do not live in poverty. The average
birthweight for women living in poverty is 2800 grams, with a standard deviation
of 500. Recently, a local hospital introduced an innovative prenatal care program
to reduce the number of low birthweight babies born in the hospital. In the first
year, 35 mothers, all of whom live in poverty, participated in this program.
Program evaluators want to determine if the birthweight for infants of women
who participated in the program is greater than the average birthweight for
women who live in poverty. They choose an α of 0.05. The following data is the
birthweight in grams for the babies born to the mothers who participated in this
program.
True or False, this finding is statistically significant (at the alpha= .05 level). - ✔✔-
True
For which of the following scenarios would it be appropriate to use a one-sample
z-test? (choose one or more) - ✔✔- comparing political affiliation scores (ranging
from (0-20) of ASU students against the political affiliation scores of all college
students
- comparing the average weight of newborns in hospital a to the average weight
of newborns in hospital b
In the United States, mothers who live in poverty generally have babies with
lower birthweight than women who do not live in poverty. The average
birthweight for women living in poverty is 2800 grams, with a standard deviation
of 500. Recently, a local hospital introduced an innovative prenatal care program
to reduce the number of low birthweight babies born in the hospital. In the first
year, 35 mothers, all of whom live in poverty, participated in this program.
Program evaluators want to determine if the birthweight for infants of women
who participated in the program is greater than the average birthweight for
, women who live in poverty. They choose an α of 0.05. The following data is the
birthweight in grams for the babies born to the mothers who participated in this
program.
How would you write the null hypothesis? - ✔✔- H0: xbar = 2800
In the United States, mothers who live in poverty generally have babies with
lower birthweight than women who do not live in poverty. The average
birthweight for women living in poverty is 2800 grams, with a standard deviation
of 500. Recently, a local hospital introduced an innovative prenatal care program
to reduce the number of low birthweight babies born in the hospital. In the first
year, 35 mothers, all of whom live in poverty, participated in this program.
Program evaluators want to determine if the birthweight for infants of women
who participated in the program is greater than the average birthweight for
women who live in poverty. They choose an α of 0.05. The following data is the
birthweight in grams for the babies born to the mothers who participated in this
program.
Based on this information the researcher should conclude that pregnant women
who live in poverty and participate in the prenatal care progra - ✔✔- Higher
What is the Excel function for a one-sample z-test? - ✔✔- Z.TEST
The purpose of the one-sample test is: (choose one or more) - ✔✔- To examine
the difference between one sample and a population
- Determine the probability that a sample and population are the same with
respect to a particular variable
- Compare a sample and population on a variable that is interval/ratio in measure
Which of the following are assumptions of a one-sample test? (choose one or
more) - ✔✔- normal distribution of data
answers
In the United States, mothers who live in poverty generally have babies with
lower birthweight than women who do not live in poverty. The average
birthweight for women living in poverty is 2800 grams, with a standard deviation
of 500. Recently, a local hospital introduced an innovative prenatal care program
to reduce the number of low birthweight babies born in the hospital. In the first
year, 35 mothers, all of whom live in poverty, participated in this program.
Program evaluators want to determine if the birthweight for infants of women
who participated in the program is greater than the average birthweight for
women who live in poverty. They choose an α of 0.05. The following data is the
birthweight in grams for the babies born to the mothers who participated in this
program.
True or False, this finding is statistically significant (at the alpha= .05 level). - ✔✔-
True
For which of the following scenarios would it be appropriate to use a one-sample
z-test? (choose one or more) - ✔✔- comparing political affiliation scores (ranging
from (0-20) of ASU students against the political affiliation scores of all college
students
- comparing the average weight of newborns in hospital a to the average weight
of newborns in hospital b
In the United States, mothers who live in poverty generally have babies with
lower birthweight than women who do not live in poverty. The average
birthweight for women living in poverty is 2800 grams, with a standard deviation
of 500. Recently, a local hospital introduced an innovative prenatal care program
to reduce the number of low birthweight babies born in the hospital. In the first
year, 35 mothers, all of whom live in poverty, participated in this program.
Program evaluators want to determine if the birthweight for infants of women
who participated in the program is greater than the average birthweight for
, women who live in poverty. They choose an α of 0.05. The following data is the
birthweight in grams for the babies born to the mothers who participated in this
program.
How would you write the null hypothesis? - ✔✔- H0: xbar = 2800
In the United States, mothers who live in poverty generally have babies with
lower birthweight than women who do not live in poverty. The average
birthweight for women living in poverty is 2800 grams, with a standard deviation
of 500. Recently, a local hospital introduced an innovative prenatal care program
to reduce the number of low birthweight babies born in the hospital. In the first
year, 35 mothers, all of whom live in poverty, participated in this program.
Program evaluators want to determine if the birthweight for infants of women
who participated in the program is greater than the average birthweight for
women who live in poverty. They choose an α of 0.05. The following data is the
birthweight in grams for the babies born to the mothers who participated in this
program.
Based on this information the researcher should conclude that pregnant women
who live in poverty and participate in the prenatal care progra - ✔✔- Higher
What is the Excel function for a one-sample z-test? - ✔✔- Z.TEST
The purpose of the one-sample test is: (choose one or more) - ✔✔- To examine
the difference between one sample and a population
- Determine the probability that a sample and population are the same with
respect to a particular variable
- Compare a sample and population on a variable that is interval/ratio in measure
Which of the following are assumptions of a one-sample test? (choose one or
more) - ✔✔- normal distribution of data
