12 squirrels were found to have an average weight of 10.2 ounces with a sample standard deviation is 0.15. Find the 90% confidence interval of the true mean weight.
12 squirrels were found to have an average weight of 10.2 ounces with a sample standard...
10 squirrels were found to have an average weight f 9.6 ounces with a sample standard deviation is .30. Find the 95% confidence interval of the true mean weight. A) (8.67,10.53) B) (9.39, 8.81) C) (9.51, 9.69) D) (9.31, 9.89)
21) 5 squirrels were found to have an average weight of 8.9 ounces with a sample standard deviation is 0.9. Find the 95% confidence interval of the true mean weight. A) 7.8 <u < 10.0 B) 8.1 <u< 9.7 C) 8.5 <ji<9.3 D) 6.4 <u < 11.4
a. You measure 43 watermelons' weights, and find they have a mean weight of 48 ounces. Assume the population standard deviation is 2.2 ounces. Based on this, what is the maximal margin of error associated with a 95% confidence interval for the true population mean watermelon weight? Give your answer as a decimal, to two places ± ounces b. You measure 25 watermelons' weights and find they have a mean weight of 44 ounces. Assume the population standard deviation is...
2) In a hospital, a random sample of 12 weeks was selected, and it was found that an average sample of 537 patients were treated in the emergency room each week. The standard deviation was 21.82. Assuming that the variable is normally distributed, find the 90% confidence interval of the true mean. 90% confidence interval:
You measure 46 watermelons' weights, and find they have a mean weight of 78 ounces. Assume the population standard deviation is 14.1 ounces. Based on this, construct a 90% confidence interval for the true population mean watermelon weight. Give your answers as decimals, to two places ______________ ± ______________ ounces
You measure 40 elephants' weights, and find they have a mean weight of 67 ounces. Assume the population standard deviation is 3.5 ounces. Based on this, construct a 90% confidence interval for the true population mean elephant weight. Give your answers as decimals, to two places ___±____ ounces
You measure 41 watermelons' weights, and find they have a mean weight of 61 ounces. Assume the population standard deviation is 11.7 ounces. Based on this, what is the maximal margin of error associated with a 90% confidence interval for the true population mean watermelon weight.
You measure 48 turtles' weights, and find they have a mean weight of 72 ounces. Assume the population standard deviation is 8.1 ounces. Based on this, what is the maximal margin of error associated with a 90% confidence interval for the true population mean turtle weight.
You measure 45 textbooks' weights, and find they have a mean weight of 68 ounces. Assume the population standard deviation is 5.4 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places <<
You measure 28 turtles' weights, and find they have a mean weight of 64 ounces. Assume the population standard deviation is 11.9 ounces. Based on this, construct a 90% confidence interval for the true population mean turtle weight. Give your answers as decimals, to two places.