Question 9: A study was run to determine the proportion of adults that feel sleep-deprived. A 95% confidence interval was created to be [0.75, 0.96] based on a sample of 150 adults. How can these results be interpretted? Answer:

Q: A 93.32% Cl is given as (2.5, 3.5). From this information, find a 95% confidence interval (yes, this…

A: The provided information is as follows:The 93.32% confidence interval is (2.5,3.5).

Q: In a survey of 1250 U.S. adults, 363 said that their favorite sport to watch is football. The 95%…

A:

Q: If n = 220,p = 0.4,then what will be the 87.4% confidence interval for the population proportion?

A:

Q: Fake Twitter followers: Many celebrities and public figures have Twitter accounts with large numbers…

A: Given that  x̄ = 13.3 , s = 9.8 , n = 53

Q: The heart rate variability (HRV) of police officers was the subject of research published in a…

A: Given information For 74 officers diagnosed with hypertension, 90% confidence interval (9.5, 124.2)…

Q: A poll by Louis Harris and Associates took a random sample of 1249 adult Americans and asked whether…

A: Confidence interval is the interval to estimate the population unknown parameter. This confidence…

Q: The results of a recent poll on the preference of teenagers regarding the types of music they listen…

A: We have given that,  X1= 448, n1= 800 and X2 =585, n2 = 900 Then,  We will find the 95% confidence…

Q: If r = 0.7 for the probability and statistics course grades of 30 students, construct a 95%…

A: Confidence interval for correlation coefficient is given by,

Q: QUESTION 2 The price of iPhone 13 pro max is recorded at a random sample of 40 electronics stores in…

A: Given,Confidence interval(CI)=(3038  ,  4613)

Q: 116 students at a college were asked whether they had completed their required English 101 course,…

A: Given that, n = 166 x = 82 Confidence level 99%

Q: Heather runs a successful lawn-mowing business. She would like to estimate the true mean amount of…

A: Given that  Sample size n =30 90 % confidence interval is (40 , 55)

Q: 1992, the women in two statistics classes for students in the liberal arts at a large northeastern…

A: In 1992, the women in two statistics classes for students in the liberal arts at a large…

Q: A random sample of high school students is used to estimate the mean time all high school students…

A: Solution: From the given information, a 99% confidence interval is 1.7 hours to 3.1 hours.

Q: Estimate 95% confidence interval for the proportion of household experiencing burglary in 2010."

A: 25.8 households per 1,000 were the victims of home burglary. These data are obtained from a survey…

Q: A random sample of 47 electrical engineers is used to estimate the average salary of all electrical…

A:

Q: A university assigns 35 sections of statistics courses with a support course for the current…

A:

Q: A 95% confidence interval for p is given (0.26,0.52). How large was the sample used to construct…

A: Given, A 95% confidence interval for true proportion p : (0.28,0.52) To find: the sample size (n) to…

Q: A 95% confidence interval for a population mean was reported to be 152 to 160. If s = 15,what sample…

A:

Q: a.) The individual object in the study was a randomly selected This is computer-graded so use exact…

A: Given,the 95% confidence interval for the average mean score in the final exam for each of the…

Q: Suppose a sample of 779 tenth graders is drawn. Of the students sampled, 202 read at or below the…

A: In question, Given that a sample of 779 tenth graders is drawn. Of the students sampled, 202 read at…

Q: Your analysis of the raw data indicates that 16 of the 30 students reported driving no more than 20…

A: From the given information, let X be the number of students reported no more than 20 miles per day.…

Q: An insurance company selected samples of clients under 18 years of age and over 18 and recorded the…

A: Given Information: Under age of 18  n1=480 x1=160 Over age of 18 n2=500 x2=140

Q: Given this data: {4, 5, 8, 11, 16, 8}, (a) Find the 90% confidence interval for the mean. (b)…

A:

Q: Example A study is côna ne effectiveness of a new drug in treating the symptoms associated with a…

A: At 95%   p value =0.05

Q: You are comparing men and women on hours spent watching TV. You pick a sample of 12 men and 14 women…

A:

Q: If X̅ = 65, ? = 20 ??? ? = 36, construct a 95% confidence interval estimate for the population mean,…

A:

Q: which sample size of students would have a confidence interval with a smaller width?

A: Answer- ● A sample size of 500 students. Will have a confidence interval with a smaller width.

Q: 2. The Kamp family has twins, Rob and Rachel. Both Rob and Rachel graduated from college 2 years…

A:

Q: A random sample of high school students is used to estimate the mean time all high school students…

A: Given at  99% confidence interval based on this sample is: 1.7 hours to 3.1 hours.  sample mean=?…

Q: Example : In the group of 345 children surveyed, the sample mean was 11.3 and the standard deviation…

A:

Q: A survey is taken of 250 students, and a P of 0.45 is found. The same survey is repeated with 1,000…

A:

Q: When Mendel conducted his famous genetics experiments with peas, one sample of offspring consisted…

A: a. The sample proportion of yellow peas is, Thus, the sample proportion of yellow peas is 0.262.

Q: The following are two confidence intervals for the average time needed to complete an exam (in…

A: From the provided information, Confidence level = 95% and 99%

Q: Question 2: A random sample of 200 observations produced a sample proportion of 0.35. Determine the…

A: We have given that  Sample size n = 200 Sample proportion = 0.35