Question

In: Statistics and Probability

A study claims that 75% of children under the age of 13 in British Columbia have...

A study claims that 75% of children under the age of 13 in British Columbia have been vaccinated from the chicken pox. A survey of randomly selected residents of a certain city included 650 children who were under the age of 13, and 197 of them were not vaccinated.

What is the approximated probability that sample proportion of non-vaccinated children in a sample of 650 children is more than 197/650? (Please carry answers to at least six decimal places in intermediate steps. Give your final answer to the nearest three decimal places).

Solutions

Expert Solution



Related Solutions

According to a recent study, 40% of children under the age of 2 have used a...
According to a recent study, 40% of children under the age of 2 have used a mobile device as a form of entertainment (i.e play video games, watch movies, listen to, music, etc.) If a random sample of 200 children under the age of 2 is selected determine the probability that: a) at least 45 % have used a mobile device as a form of entertainment. b) between 37% and 48% have used a mobile device as a form of...
QUESTION 9 A nutritionist claims that children under the age of 10 years are consuming more...
QUESTION 9 A nutritionist claims that children under the age of 10 years are consuming more than the U.S. Food and Drug Administration’s recommended daily allowance of sodium, which is 2400 mg. To test this claim, she obtains a random sample of 75 children under the age of 10 and measures their daily consumption of sodium. This sample has a mean of 2610 mg and leads to a p -value of .124. Claim: The mean level of sodium consumption for...
In a sample of 75 children, the mean age at which they first began to combine...
In a sample of 75 children, the mean age at which they first began to combine words was 16.27 months, with a standard deviation of 9.65 months. Part 1 of 2 Construct a 99.8% interval for the mean age at which they first begin to combine words. Round the answers to two decimal places.
Case study: Mark, age 38, and his wife, Cathy, and age 34, have two children: Sam...
Case study: Mark, age 38, and his wife, Cathy, and age 34, have two children: Sam age 5 and Alex is 3. They decided that Cathy would stay home with the boys until they reach age 6 and were ready to attend first grade. Kathy's educational background is in early childhood education, so she feels comfortable staying home with the children. Mark is self-employed as an accountant, so he has a small office and two assistants. In addition, Gretchen, Cathy's...
7. A study of youth video-game culture was conducted in schools throughout British Columbia, Canada. Part...
7. A study of youth video-game culture was conducted in schools throughout British Columbia, Canada. Part of the study focused on the differences in academic performance between "heavy" players and "light" players of video games: heavy players defined as spending more than 7 hours per week on the games; light players defined as spending less than 3 hours per week gaming. A sample of 240 "heavy" users had an average GPA of 2.7, with a standard deviation of 0.7. A...
A researcher records whether n=288n=288 children do or do not have asthma at age 13, and...
A researcher records whether n=288n=288 children do or do not have asthma at age 13, and then again records whether these same 288288 individuals have asthma 7 years later. Results are shown in the following table: Asthma at age 20? Asthma at age 13? Yes No Yes 75 22 No 11 180 What is the expected frequency of "asthma at 13" and "asthma at 20"? [Answer to 2 decimal places.] Tries 0/5 What is the expected frequency of "asthma at...
Ivanna, who has three children under age 13, worked full-time while her husband, Sergio, was attending...
Ivanna, who has three children under age 13, worked full-time while her husband, Sergio, was attending college for nine months during the year. Ivanna earned $40,275 and incurred $8,175 of child care expenses. Click here to access the percentage chart to us for this problem. The amount of Ivanna and Sergio's credit for child and dependent care expenses is $ Computing the Child and Dependent Care Credit Adjusted Gross Income Over But Not Over Applicable Rate of Credit $          0 $15,000...
Georgette is single, age 66, with 2 dependent children under the age of 12, and 2...
Georgette is single, age 66, with 2 dependent children under the age of 12, and 2 dependents over age 18 and in college. Her income is as follows: Wages from employment $85,000 with taxes withheld of $6,400 Interest from Regions bank $100 Interest from city of Jackson Municipal Bonds $800 Insurance Life Insurance proceeds from dead brother $100,000 Gambling Winnings $4,500 Capital loss on sale of IBM stock $6,000 ? ? He also incurred the following: ? Medical expenses (before...
Georgette is single, age 66, with 2 dependent children under the age of 12, and 2...
Georgette is single, age 66, with 2 dependent children under the age of 12, and 2 dependents over age 18 and in college. Her income is as follows: Wages from employment $85,000 with taxes withheld of $6,400 Interest from Regions bank $100 Interest from city of Jackson Municipal Bonds $800 Insurance Life Insurance proceeds from dead brother $100,000 Gambling Winnings $4,500 Capital loss on sale of IBM stock $6,000 ? ? He also incurred the following: ? Medical expenses (before...
Kevin and Jenny, who are both working full-time, have three children all under the age of...
Kevin and Jenny, who are both working full-time, have three children all under the age of ten. The two youngest children, who are three and five years old, attended Eastside Pre-School for a total cost of $3,000. Ervin, who is nine, attended Big Kid Daycare after school at a cost of $2,000. Jenny has earned income of $15,000 and Kevin earns $14,000. What amount of childcare expenses should be used to determine the Child and Dependent Care Credit?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT