Question

In: Statistics and Probability

One of the best indicators of the health of a baby is his/her weight at birth....

One of the best indicators of the health of a baby is his/her weight at birth. The National Center for Health Statistics reports that although infants weighing 5 1/2 pounds (88 ounces) or less account for only 7% of births, they account for nearly 2/3 of infant deaths.

In the United States, mothers who live in poverty generally have babies with lower birthweight than those who do not live in poverty. While the average birthweight for babies born in the U.S. is approximately 3000 grams, the average birthweight for women living in poverty is 2000 grams.

Recently, a local hospital introduced an innovative new 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. Data drawn from hospital records reveals that the babies born to these women had a birthweight of 3175 grams, with a standard deviation of 550 grams.

You are to determine if the program was effective using a single sample t test.

What is the null hypothesis? ____________________________________

What is the alternative hypothesis? _________________________________________

Use the following data to perform the calculations. You will have to type in your data to the online calculator (http://www.graphpad.com/quickcalcs/OneSampleT1.cfm?Format=SD (Links to an external site.) )

Chose data entry format (the “Enter mean, SD and N” radio button should already be selected
Enter data (Obtain the data from the paragraph above)

Mean = ______

SD = ______

N = ______

Specify the hypothetical mean value = ______

Select the entry box option (4th radio button) and enter the original birthweight that the study is trying to change.

Please Copy and paste the results from the online calculator as mine isn't working

Expert Solution

Null hypothesis : The difference between the observed mean of birthweight for program babies and the expected mean of birthweight for poor women is zero.

Alternative hypothesis - The difference between the observed mean of birthweight for program babies and the expected mean of birthweight for poor women is not zero.

orchestra answered 2 years ago

At birth, Baby Joe appeared to be a normal, healthy baby boy. Both of his parents...

At birth, Baby Joe appeared to be a normal, healthy baby boy. Both of his parents were in their late twenties and were healthy as well. At four weeks of age, Joe developed a middle-ear infection (called otitis media). He suffered from recurrent ear infections over the next three months, which required antibiotic treatment. Joe’s pediatrician recommended placing tubes in Joe’s ears to provide drainage of the fluid resulting from the infections. Cultures of the drainage fluid showed the presence...

A researcher is testing the hypothesis that baby weight (in pounds) at 6 months after birth...

A researcher is testing the hypothesis that baby weight (in pounds) at 6 months after birth is related to breastfeeding (in oz). The regression equation is Weight = 6.5 + .48 * Milk/day. The Standard Error (SE) of the slope is 0.13, and the data were gathered from a sample of 320 babies (Alpha level is set at 0.05.) Which one of the following statements is INCORRECT? Hypothesis testing for a significant slope shows evidence that Milk/day is a statistically...

Example 4: The birth weight, x, of a randomly selected full-term baby is approximately normally distributed...

Example 4: The birth weight, x, of a randomly selected full-term baby is approximately normally distributed with μ = 3500 grams and standard deviationσ = 600 grams. Find (a) P(x < 2900) =the proportion of full-term babies whose weight is less than 2900 grams (b) P(2900 < x < 4700) =the proportion of full-term babies whose weight is between than 2900 and 4700 grams (c) P (x < 4900) =the proportion of full-term babies whose weight is more than 4900...

My daughter just gave birth to a beautiful baby girl, so to help with her college...

My daughter just gave birth to a beautiful baby girl, so to help with her college education, I plan to save $1200 each year for the next 18 years. If the first deposit is made a year from now into an account with a compound annual interest rate of 2%, how much will be in her account in 18 years? $22,032.00 $21,600.00 $1713.90 $25,694.77 None of the above

Please prepare a birth plan for a woman having her first baby. Think about what is...

Please prepare a birth plan for a woman having her first baby. Think about what is IMPORTANT to you and your family. What is the most important, what is not so important, and prepare a birth plan suitable for placing onto the chart. Be prepared to discuss and / or defend your plan in class. You may pick one other class mate to work with. If 2 are working together, let me know who you are.

Birth outcomes, like other health indicators, follow the wealth-health gradient. Why do wealthier and more educated...

Birth outcomes, like other health indicators, follow the wealth-health gradient. Why do wealthier and more educated mothers have better outcomes? Give examples

On the day of his daughter's birth, a father decided to establish a fund for her...

On the day of his daughter's birth, a father decided to establish a fund for her college education. The father wants to be able to withdraw $4000 from the fund on her 18th, 19th, 20th and 21st birthdays. If the fund earns interest at 9% per year, compounded quarterly, how much should the father deposit at the end of each year, up through the 17th year? a.) $465.31 b.) $380.71 c.) $338.41 d.) $423.01 e.) None of the above

Question 81 The actual birth of a baby occurs during the third stage of birth after...

Question 81 The actual birth of a baby occurs during the third stage of birth after the placenta is delivered. a. TRUE b. FALSE Question 87 A leak in a blood vessel is closed by platelets and fibrin threads that contract. a. TRUE b. FALSE

CASE STUDY 2: Sammy is a newborn boy at 32 hours of life. His birth weight...

CASE STUDY 2: Sammy is a newborn boy at 32 hours of life. His birth weight was 8 pounds. He was born via normal spontaneous vaginal birth at 40 weeks of gestation to a 26-year-old G1. There were no maternal prenatal issues. Labor and delivery were complicated by a prolonged second stage of labor, which eventually progressed to spontaneous birth. The Apgar scores were 6 and 8, and the infant was taken to the nursery for an observation period; he...

Baby weights: According to a recent National Health Statistics Report, the weight of male babies less...

Baby weights: According to a recent National Health Statistics Report, the weight of male babies less than 2 months old in the U.S. is normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. a. What proportion of babies weigh more than 13 pounds? b. What proportion of babies weigh less than 15 pounds? c. What proportion of babies weigh between 10 and 14 pounds? d. Is it unusual for a baby to weigh more than 17 pounds?