You intend to estimate a population mean u with the following sample. 21.7 -12.4 47.8 57.7 44.5 63.6 12.5 32.2 9.7 0.5 You believe the population is normally distributed. Find the 99% confidence interval. answer as an open-interval (i.e., parentheses) accurate to twp decimal places (becau data are reported accurate to one decimal place). 99% C.I. = Answer should be obtained without any preliminary rounding. However, the critical va rounded to 3 decimal places.

Tina catches a 14-pound bass.  She does not know the population mean or standard deviation.  So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds.  Find the t and calculate a 95% (α = .05) confidence interval.

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 27.2 36 37.5 37.9 56.4 52.8 57.6 68.9 34.4 65.5 53.2 75.5 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. Question Help: DVideo Message instructor D Post to forum Submit Question P Type here to search @ %23 3. 24 4. 5. 7. tab -1 caos lock A D G L 2)

You must estimate the mean temperature (in degrees Fahrenheit) with the following sample temperatures: 33.9 25.2 42.6 33.9 34.3 57.7 38.2 Find the 80% 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).80% C.I. =

You intend to estimate a population mean u with the following sample. 95.6 77.1 72.5 83.2 81.1 72.3 73.4 63.1 You believe the population is normally distributed. Find the 99.5% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to twp decimal places (because the sample data are reported accurate to one decimal place). 99.5% C.I. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Submit Question Ce Ol 96 & 3. 00 27 %23

You intend to estimate a population mean u with the following sample. 3.3 41.8 3.4 39.9 47.8 68.7 32 -0.9 29.1 You believe the population is normally distributed. Find the 99.9% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to twp decimal places (because the sample data are reported accurate to one decimal place). 99.9% C.I. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

You intend to estimate a population mean u with the following sample. 31.6 30 6.9 26.2 17.9 31.3 26.6 26.8 You believe the population is normally distributed. Find the 99.5% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to twp decimal places (because the sample data are reported accurate to one decimal place). 99.5% C.I. =

Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96

You intend to estimate a population mean μ with the following sample. 72.5 63.8 60.9 74.5 64.2 62.3 66.5 80.7 77.1 85.2 84 You believe the population is normally distributed. Find the 99.5% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to twp decimal places (because the sample data are reported accurate to one decimal place).99.5% C.I. = Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

Below you will find questions and a sample dataset. Please use the provided dataset to complete the tasks and to answer the questions.   Assuming that the following sample is taken from a normal distribution, compute the 90% confidence interval for the population mean. Dataset: 31.6 46.9 54.5 23.7 60.3 37.6 58.3 65.7 50.2 53.7   A telecommunication company wants to estimate the mean length of time (in minutes) that 18- to 24- year-olds spend text messaging each day. In a random sample of fifty-eight 18- to 24-year-olds, the mean length of time spent text messaging was 29 minutes. From past studies, the company assumes that σ is 4.5 minutes and that the population of times is normally distributed. Compute a 99% confidence interval for the population mean time that 18- to 24-year-olds spend text messaging each day. Interpret the confidence interval found in part a. What does the phrase “99% confidence” refer to in this context?…