The weights of four randomly and independently selected bags of tomatoes labeled 5.0 pounds were found...
The weights of four randomly and independently selected bags of tomatoes labeled 5.0 pounds were found to be 5.1, 5.0, 5.1, and 5.2 pounds. Assume Normality. Answer parts (a) and (b) below. a. Find a 95% confidence interval for the mean weight of all bags of tomatoes.
The weights of four randomly and independently selected bags of tomatoes labeled 5.0 pounds were found to be 5.4, 5.0, 5.3, and 5.5 pounds. Assume Normality. Answer parts (a) and (b) below. a. Find the 95% confidence interval for the mean weight of all bags of tomatoes. (____ , ____) b. Can you reject the population mean of 5 pounds?
The weights of four randomly and independently selected bags of potatoes labeled 20.0 pounds were found to be 20.6, 21.3, 20.7, and 21.2 pounds. Assume Normality. Answer parts (a) and (b) below. a. Find a 95% confidence interval for the mean weight of all bags of potatoes (Type integers or decimals rounded to the nearest hundredth as needed. Use ascending order.) b. Does the interval capture 20.0 pounds? Is there enough evidence to reject a mean weight of 20.0 pounds?...
Two samples are randomly selected from each population. The sample statistics are given below. Find the P-value used to test the claim that H, H2. Use c = 0.05. ng = 100, n2 = 125, X= 615, x2 = 600, 6, = 40,02 = 24 O A. 0.0005 OB. 0.5105 OC. 0.1015 OD. 0.0505 The following data represent the yields for a five-year CD for ten banks in city A and eight banks in city B. At the 0.05 level...
16.
A random and independently
chosen sample of four bags of horse carrots, each bag labeled 20
pounds, had weights of
20.520.5,
19.919.9,
20.920.9,
and
20.020.0
pounds. Assume that the distribution of weights in the
population is Normal. Complete parts a through c below.
A random and independently chosen sample of four bags of horse carrots, each bag labeled 20 pounds, had weights of 20.5, 19.9, 20.9, and 20.0 pounds. Assume that the distribution of weights in the population is...
A study of women’s weights found that a randomly selected sample of 150 women had a mean weight of 147.3 lb. Assuming that the population standard deviation is 19.6 lb., construct a 95% confidence interval estimate of the mean weight of all women. Choose the correct interval from below: Choose one • 10 points (144.211, 150.389) (140.611, 146.789) (144.667, 149.933) (144.163, 150.437)
The weights of 6 randomly selected mattresses were found to have a variance of 1.48. Construct the 99% confidence interval for the population variance of the weights of all mattresses in this factory. Round your answers to two decimal places. (lower and upper endpoint)
14. Randomly selected students participated in an experiment to test their ability to determine when one minute (or sixty seconds) has passed. Forty students yielded a sample mean of 61.8 seconds. Assuming that σ=9.2 seconds, construct and interpret a 95% confidence interval estimate of the population mean of all students. What is the 95% confidence interval for the population mean μ? ____<μ<____ (Type integers or decimals rounded to one decimal place as needed.) 15. Salaries of 43 college graduates who...
8.52 The weights (in pounds) of 30 randomly selected boy students from a high school are given below. 181 168 150 175 174 154 156 187 161 162 173 163 164 168 147 170 170 163 173 153 174 175 150 175 176 177 178 143 186 157 a. Find a 95% confidence interval for o. b. Based on the confidence interval from part (a), what would be your decision for the test H:0° = 100 versus H: 0° +100...
Twenty-five packages of a dozen extra-large eggs were randomly selected and their weights measured. The mean was 783.4 grams with a standard deviation of 12.1. Estimate the true standard deviation of the weight of the package of a dozen extra-large eggs using a 95% confidence interval. Assume that the distribution of the weight is approximately normal. Show your full work.