95% confidence interval for a population mean is (92.0, 96.0). Calculate the sample mean? Round to one decimal
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95% confidence interval for a population
Calculate the sample mean?
Round to one decimal
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- The 95% confidence interval for the mean contains the sample mean with 95% certainty.TrueFalseSuppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 5 inches. The heights of 9 randomly selected students are 73, 66, 64, 67, 70, 63, 64, 72 and 72. = _______ Margin of error at 90% confidence level = ________ 90% confidence interval = _______, _________Please answer within 30min thanks.
- What value of z would you use to calculate the 98% confidence interval for a population mean, given that you know the population standard deviation, the sample size and the sample mean of your sample?Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence interval of (3.6,4.8) when estimating the mean height (in centimeters) of a sample of seedlings. What is the estimated margin of error?The distribution of heights in a population of women is approximately normal. Sixteen percent of the women have heights less than 62 inches. About 97.5% of the women have heights less than 71 inches. Use the empirical rule to estimate the mean and standard deviation of the heights in this population. Mean: K inches Standard Deviation: inches
- Use the confidence interval to find the margin of error and the sample mean. (0.636, 0.760)A random sample of 12 cats was collected to study the lifespan with the data listed below. Find the 87% confidence interval for the population mean. Round all values to two decimals. 13, 15, 18, 16, 8, 12, 13, 15, 8, 13, 12, 11. Provide your answer below.Use the confidence interval to find the margin of error and the sample mean. (0.196,0.300) The margin of error is
- Determine the margin of error for the confidence interval for the mean: 23 +1.7 The margin of error isthe population You measure 27 dogs' weights, and find they have a mean weight of 58 ounces. standard deviation is 7 ounces. Based on this, construct a 95% confidence interval for the true population mean dog weight. Give your answers as decimals, to two places - ounces Enter an integer or decimal number [more..]z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?
