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%...
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?
Suppose the speeds of vehicles traveling on a highway are normally distributed and have a known population standard deviation of 7 miles per hour and an unknown population mean. A random sample of 32 vehicles is taken and gives a sample mean of 64 miles per hour Find the margin of error for the confidence interval for the population mean with a 98% confidence level Z005 Z0.025 Z0.0 Z0.005 0.10 1.282 1.645 1.960 2.326 2.576 You may use a calculator...
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 =