A botanist wishes to estimate the typical number of seeds for a
certain fruit. She samples 73 specimens and counts the number of
seeds in each. Use her sample results (mean = 66.5, standard
deviation = 6.3) to find the 99% confidence interval for the number
of seeds for the species. Enter your answer as an
open-interval (i.e., parentheses)
accurate to 3 decimal places.
99% C.I. =
A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples...
A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 42 specimens and counts the number of seeds in each. Use her sample results (mean = 79.1, standard deviation = 10.3) to find the 95% confidence interval for the number of seeds for the species. Enter your answer as an open-interval (i.e., parentheses) accurate to 3 decimal places. 95% C.I. =
A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 60 specimens and counts the number of seeds in each. Use her sample results (mean = 17.1, standard deviation = 16.4) to find the 95% confidence interval for the number of seeds for the species. Enter your answer as an open-interval (i.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).
Assume that a sample is used to estimate a population mean H. Find the 99% confidence interval for a sample of size 372 with a mean of 48.4 and a standard deviation of 16.1. Enter your answer as a tri-linear inequality accurate to 3 decimal places. << Question Help: Message instructor Submit Question A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 51 specimens and counts the number of seeds in each. Use...
for the last picture only C. and D. A botanist wishes to estimate the typical number of seeds for a certain fruit. She samples 74 specimens and counts the number of seeds in each. Use her sample results (mean = 70.4, standard deviation = 14.6) to find the 90% confidence interval for the number of seeds for the species. Enter your answer as an open- interval (f.e., parentheses) accurate to 3 decimal places. 90% C.I. - You wish to test...
Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 305 with 168 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.I. =
You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 28.4 10.7 33.3 11 20.7 21.7 19.1 Find the 99% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place). 99% C.I. =
You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 73.5 64.1 45.3 53.9 58.7 Find the 99% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place). 99% C.I. = Answer should be obtained without any preliminary rounding.
Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 144 with 34% successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. 99% C.I. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.
5.7.2 A hospital administrator wishes to estimate the mean weight of babies born in her hospital. How large a sample of birth records should be taken if she wants a 95% confidence interval that is 1 pound wide? Assume that a reasonable estimate of s is 1 pound. What if she wanted to be 99% certain? Compute the sample size for that as well.
a. Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 198 with 42 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. 95% C.I. = b. A political candidate has asked you to conduct a poll to determine what percentage of people support her. If the candidate only wants a 0.5% margin of error at a 99% confidence...