Question 8: calculate in 95% confidence interval for the blood pressure range of any individual who is prescribed the medicine.

Q: We have presented a confidence interval (CI) for the difference, μ1 − μ2, between two population…

A: The 90% confidence interval is from –10 to –5. The 90% confidence interval for the mean of the…

Q: The distribution of scores on a standardized test is approximately Normal with a standard deviation…

A: According to the provided information, Mean (x̅) = 76.8 Standard deviation (σ) = 22 Sample size (n)…

Q: We have presented a confidence interval (CI) for the difference, μ1 − μ2, between two population…

A: It is given that the 99% confidence interval for the difference between two population  means is…

Q: If a 90% confidence interval for the mean is (75.3 to 80.9), we would reject H0:  =70 in favor of…

A: The 90% confidence interval for the mean is provided as (75.3, 80.9). The hypotheses are;

Q: The confidence interval for a population porportion is (0.49, 0.69). What the the sample proportion…

A: CI =(0.49,0.69) We want to find the pcap and margin of error

Q: QUESTION 6 A company owns 520 cars, the manager wants to know what is the mean distance traveled…

A: Given that  Sample size (n)=520 cars  The number of car information gathered (X)=13 cars  90%…

Q: Find a 95% confidence interval for a mean, µ, where n = 324, x̄ = 2.7, s = .91, and se = .06.

A: Given: n = 324, x̄ = 2.7, s = .91, se = .06.

Q: Question 4 You have taken 10 observations from normally distributed data that is known to have a…

A: Given data: Population standard deviation = 1 Sample size = 10 Sample mean = 32 To calculate  the…

Q: Find the 95% confidence interval for the standard deviation of the ages of residents in a senior…

A:

Q: Out of 100 people sampled, 6 had kids. Based on this, construct a 95% confidence interval for the…

A: The random variable people with kids follow binomial distribution. The sample size is 100. The…

Q: Question 7 In a sample of 280 adults, 165 had children. Construct a 99% confidence interval for the…

A:

Q: The half-life of the active substance in a particular drug was measured in 15 subjects. The mean…

A: sample size ( n) = 15 sample mean (X̅) = 4.55 sample standard deviation (s) = 1.23

Q: Find the 95% confidence interval for the standard deviation of the ages of residents in a senior…

A:

Q: Ali is interested in estimating the mean amount spent per day in a shopping mall based on 16…

A: Sample size:  customers.And it is known that the amount spent per day in a shopping mall is normally…

Q: SAT scores are distributed with a mean of 1,500 and a standard deviation of 300. You are interested…

A:

Q: QUESTION 6 A company owns 520 cars and the manager wants to estimate the mean distance traveled…

A: given data,N=520 carsdata are  normally distributed n=36df=n-1=36-1=35CI=97%α=1-0.97=0.03

Q: Express the confidence interval 60.3 % + 5.9 % in interval form.

A:

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

A:

Q: Question 5 If n=27, ¯x¯(x-bar)=30, and s=16, construct a confidence interval at a 99% confidence…

A: According to the given information, we have Sample standard deviation = 16 Sample size = 27 Sample…