The weights, in pounds, of the cats in an animal adoption center are normally distributed. If a random sample of cats is taken and the confidence interval is (7.9,12.7), what is the margin of error?
Give just a number for your answer. For example, if you found that the margin of error was 2, you would enter 2.
Provide your answer below:
The weights, in pounds, of the cats in an animal adoption center are normally distributed. If...
Suppose the number of inches of rainfall each year in a city is normally distributed. For a random sample of years, the confidence interval (3.9,7.7) is generated. Find the error bound. Give just a number for your answer. For example, if you found that the EBM was 2, you would enter 2 *Note: The error bound (EBM) is also referred to as the margin of error. Provide your answer below:
The heights of American men are normally distributed. If a random sample of American men is taken and the confidence interval is (65.3,73.7), what is the sample mean x¯? Give just a number for your answer. For example, if you found that the sample mean was 12, you would enter 12.
Calculate a point estimate given a confidence interval Question The scores on a standardized test are normally distributed. If a random sample of standardized test scores is taken and the confidence interval is (92.3, 120.7), what is the sample mean X? Give just a number for your answer. For example, if you found that the sample mean was 12, you would enter 12. Provide your answer below:
1)Dog weights. Adult German shepherd weights are normally distributed with mean of 73 pounds and standard deviation of 8 pounds. (a) The bottom 24% of weights are below what weight? _________ (b) 76% of weights are above what weight?___________ (c) The top 24% of weights are above what weight? ___________ (Round answers to one decimal place) 2)A distribution of values is normal with a mean of 60 and a standard deviation of 7. Find the interval containing the middle-most 82%...
Salmon Weights: Assume that the weights of spawning Chinook salmon in the Columbia river are normally distributed. You randomly catch and weigh 19 such salmon. The mean weight from your sample is 22.2 pounds with a standard deviation of 4.7 pounds. We want to construct a 95% confidence interval for the mean weight of all spawning Chinook salmon in the Columbia River. (a) What is the point estimate for the mean weight of all spawning Chinook salmon in the Columbia...
1) The weights of bowling balls are normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 bowling balls is selected. What is the probability that the average weight of the sample is less than 11.00 pounds? Write only a number as your answer. Round to 4 decimal places (for example 0.0048). Do not write as a percentage. 2) A survey of high school students revealed that the numbers of soft drinks consumed per month...
25> Consider a variable known to be Normally distributed with unknown mean μ and known standard deviation σ-10. (a) what would be the margin of error of a 95% confidence interval for the population mean based on a random sample size of 25? The multiplier for a z confidence interval with a 95% confidence level is the critical value z. 1.960. (Enter your answer rounded to three decimal places.) margin of error 25 (b) What would be the margin of...
Suppose a random sample of size 17 was taken from a normally distributed population, and the sample standard deviation was calculated to be s = 5.0. a) Calculate the margin of error for a 95% confidence interval for the population mean. Round your response to at least 3 decimal places. b) Calculate the margin of error for a 90% confidence interval for the population mean. Round your response to at least 3 decimal places.
Weights of female cats of a certain breed are normally distributed with mean 4.3 kg and standard deviation 0.6 kg. What proportion of female cats have weights between 3.7 and 4.4 kg? How heavy is a female cat whose weight is on the 80th percentile? A female cat is chosen at random. What is the probability that she weighs more than 4.5 kg?
The number of cars sold annually by used car salespeople is normally distributed with a standard deviation of 14. A random sample of 430 salespeople was taken and the mean number of cars sold annually was found to be 78. Find the 97% confidence interval estimate of the population mean. Note: For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence limits. Confidence Interval =