In a sample of 88 children selected from a city, 8 children suffer from asthma. What is the P-value required to test the claim that the proportion of all children with asthma in the town is equal to 11%?

Q: Suppose 4 percent of the children in the US are thought to be near the juvenile diabetes threshold.…

A:

Q: A recent survey showed that from a sample of 500 packages delivered by a Postal Service, 480 were…

A: Given: p0=0.98α=0.01n=500x=480

Q: Last year, television station WXYZ's share of the 11 P.M. news audience was approximately equal to,…

A: Introduction :-  Given :-  Surveyed a random sample of 400 11PM news viewers and found that 146…

Q: A factory for the production of light bulbs took a random sample of 200 units and found that 18 of…

A: The sample size is N=200N = 200 the number of defective cases is X=18X = 18 and the sample…

Q: A recent survey found that 68.6% ofthe population own their homes. In a random sample of180 heads of…

A:

Q: A researcher claims that the incidence of a certain type of cancer is less than 5%. To test his…

A: In this context, a researcher claimed that the proportion of incidence of particular type of cancer…

Q: In a sample of 167 children selected randomly from one town, it is found that 37 of them suffer from…

A: Sample size n = 167 And number of children who suffer from asthma, X = 37 Let p be the proportion of…

Q: In 2001​, researchers investigated the effect of​ weed-killing herbicides on house pets. They…

A: a) Given that n1=840x1=445n2=116x2=20 Consider,…

Q: 58% of students entering four-year colleges receive a degree within six years. Is this percent…

A: P-value in the context of the study: If the population proportion of students who played…

Q: What proportion of 20% defective shipments will be accepted?

A: Given : N=50 , n=5 , p=0.20 , M=N*p=50*0.2=10 Here , X​​​​​​​Hypergeometric (n=5,N=50,M=10) The…

Q: In 1992​,researchers investigated the effect of​ weed-killing herbicides on house pets. They…

A: Given, In 1992​,researchers investigated the effect of​ weed-killing herbicides on house pets. They…

Q: During routine screening, a doctor notices that 20% of her adult patients show higher than normal…

A: Obtain the sample size of a preliminary estimate for p is 0.20 with the 95% confidence. The formula…

Q: In a sample of 137 leopards selected randomly from one preserve, it is found that 7 of them have…

A: H0 : p = 0.13 H1: p ≠ 0.13

Q: n the cancer institute of Philippine General Hospital, there were 529 patients who undergo…

A:

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: given information: let us consider x : potential voters prefers the democratic candidate.…

Q: Many elementary school students in a school district currently have ear infections. A random sample…

A: Given X1=11 X2=12 n1=40 n2=30

Q: It is thought that 12% of all students taking a particular course received a grade of A. In a sample…

A:

Q: In another Harris poll, adults were asked if they are in favor of abolishing the penny. Among 200…

A: From the given information,                        Sample size (n) =200 Probability of success…

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: It is given that p hat is 0.7368 (= 70/95).

Q: In a recent Gallup poll, 507 adults age 18 and older were surveyed and 269 said they believed they…

A:

Q: A random sample of voters found that 180 out of 320 people were in favor of a gas tax. Election…

A: Given Random sample is 180 out of 320 voters are in support of tax. Total 36000 people voted in…

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: The sample proportion is, The null hypothesis is, The alternative hypothesis is, Significance…

Q: A company claims that 90% of its deliveries arrive on time. You take a sample of 74 deliveries, of…

A: Given,   The sample proportion is,

Q: In the study conducted by selecting 100 female and 100 male students in order to test the claim that…

A: given that  p- value=0.0228

Q: To determine if there is a significant difference in the proportion of smokers among the blue collar…

A:

Q: According to a 2015 article, 37% of Americans aged 25 years or older have been arrested. An Orange…

A: Given that sample size n = 120 Number of persons who have been arrested, X = 48 Level of…

Q: A Chinese cell-phone manufacturer exclusively uses robots in one of its factories. A random test run…

A:

Q: A researcher selects all of the possible samples with n = 8 scores from a population and computes…

A: The mean of the sampling distribution of the sample mean is an unbiased estimator for population…

Q: 4. Out of 450 randomly selected people in a soccer match, 225 of them were students. Compute the…

A: 450 people are selected randomly; n=450 225 of them were students; x=225

Q: A university dean is interested in determining the proportion of students who receive some sort of…

A:

Q: The National Association of Home Builders reported that 57 % of young people ages 18-24 wereliving…

A: According to the provided information, 57% (p) of young people ages 18-24 were living with their…

Q: A survey of 120 fatal accidents showed that in 24 cases the driver at fault was inadequately…

A: Point estimate:   The population parameter which is estimated by using sample statistic is termed as…

Q: A poll found that 83% of people out of a survey of size 127 watch at least three hours of TV per…

A: Given: A poll found that 83% of people out of a survey of size 127 watch at least three hours of TV…

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A:

Q: A previous study showed that 69% of community college students have read a book for personal…

A: Given info: A previous study showed that 69% of community college students have read a book for…

Q: In a small grocery, 23% of the bottled products were sold while 63% of the canned goods were not. If…

A: Solution To find the confidence interval we will use z distribution.

Q: On a normal weekend, 14% of those attending Mass at a local Catholic church donate over $200 per…

A: Given : P(donate over $200) = 0.14 P(donate Between $100 and $200) = 0.26 P(donate less than $100) =…

Q: A study of 200 randomly selected occupants in passenger cars and 250 randomly selected occupants in…

A: Here, p1 represents the proportion of occupants in passenger cars and p2 represents the proportion…

Q: 8) In a recent one-way ANOVA test, SSW was equal to 15,900 and the SSB was equal to 3,100.…

A: We have to identify true or false.

Q: Suppose a study revealed 63% of all subjects possessed trait A, 31% possessed trait B, and 18%…

A: Solution

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A:

Q: A newspaper article claims that 92 percent of teens use social media. To investigate the claim, a…

A: Ans : The distribution of the population is not approximately normal.

Q: In a previous​ poll, 43​% of adults with children under the age of 18 reported that their family ate…

A: It is given that the hypothesized population proportion (p) is 0.43 and the sample size is 1145 and…

Q: The local sheriff has staked his campaign for re-election on the claim that that at least 88% of the…

A: Givensample size(n)=66p^=80%=0.80p=88%=0.88

Q: In a previous poll, 38% of adults with children under the age of 18 reported that their family ate…

A: Given, The sample proportion is, The null and alternative hypothesis is:

Q: In a sample of 88 children selected randomly from one town, it is found that 8 of them suffer from…

A: Given information- Sample size, n = 88 It is found that 8 of them suffer from asthma. So, x = 8 So…

Q: A university dean is interested in determining the proportion of students who receive some sort of…

A: Given: Confidence level=95%Margin of error E=2% From the Standard Normal Table, the value of z* for…

Q: In a certain school district, it was observed that 27% of the students in the element schools were…

A: The statement of the problem is “the proportion of only children in the special program is…

Q: You are conducting a study to see if the proportion of voters who prefer the Democratic candidate is…

A: Given: n = 89, x = 52, α = 0.05, p = 0.59. Sample proportion: p^=xn=5289=0.5843

Q: 2. In a certain special education school, a sample of 144 students was chosen and among these, 48…

A: Claim : proportion of ADHD students in the school is not 0.40.

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.