7. A 99% confidence interval (in inches) for the mean height of a population is 65.89...
Please show work step by step. and round answers to 4 decimal
places. thank you!
13-14. A 99% confidence interval (in inches) for the mean height of a population is 65.7<<67.3. This result is based on a sample of size 144. Construct the 95% confidence interval.
#4. A 95% confidence interval for the lives in minutes) of Kodak AA batteries is 4304 <470. Assume that the result is based on a sample of size 100. a) What is the value of sample mean? b) What is the population standard deviation o? c) Construct the 99%confidence interval: d) If the confidence interval 432 < u < 468 is obtained from the same sample data, what is the level of confidence? #5. A 95% confidence interval is 48...
#6. A 90% confidence interval for the mean height of a population is 65.7<u <67.3. This result is based on a sample of size 169. Construct a 99% confidence interval.
Q12. a) Suppose the given confidence interval estimates the true population mean as 3.5 < u < 13.1 with a 95% level of confidence when o is known. (1) Find the point estimates for the unknown population mean. (ii) Find the margin of error. (iii) Give the interpretation of the confidence interval. (iv) Name two ways of decreasing the width of the confidence interval. b) State the assumptions necessary for linear regression model Y = A + Bx + E...
Given the confidence interval for a population mean, 55.4< < 58.6 , find the point estimate of . O A 1.6 OB. 57 OC. 2.8 OD. 114 E. not enough information is given to answer the question QUESTIONS We will use 800 simple random samples, each of size 30, from a given population to calculate a series of 92% confidence intervals to estimate . Approximately how many of the 800 intervals will contain the population mean? O A 700 OB....
Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ Assume that the population has a normal distribution. 30 , x: 84 6, s-105, 90% confidence A. O B. OC. O D. 79.32 < μ < 89.88 81.36 <p < 8784 81.34 < μ < 87.86 80.68 < μ < 88.52
Given the following confidence interval for a population mean,
compute the margin of error, E.
Given the following confidence interval for a population mean, compute the margin of error, E. 15.96 < < 18.40 Answer How to enter your answer E =
QUESTION 8 Use the confidence level and sample data to find a confidence interval for estimating the population u. Round your answer to the same numbe of decimal places as the sample mean. A random sample of 1 17 full grown lobsters had a mean weight of 22 ounces and a standard deviation of 2.7 ounces. Construct a 98% confidence interval for the population mean . ?20 oz < ? < 22 oz 022 oz < ? < 24 oz...
Assuming that the population is normally distributed, construct a 99% confidence interval for the population mean, based on e ollowing sample sizeof 1, 2, 3, 4, 5, 6, 7, and 25 In the given data, replace the value 25 with 8 and recalculate the confidence interval. Using these results, describe the effect of an outlier (that is, an extreme value) on the confidence interval, in general. Find a 99% confidence interval for the population mean, using the formula or technology....
Cons ณc he indicated confidence interval or the t e ence between the t o population means Assume that the t o sa les are independent simp e random samples selected om nor distributed populations o not assume that the population standard deviations are equal Independent sa plas from two different populations yield the follow ng data The sample size s 476 for both samples Find the x1 = 958, x,-157, s,-77 s,-88 O A. 7932 809 5% confidence interval...