Use the given confidence interval to find the margin of error and the sample mean. (7.14,10.84) The sample mean is The margin of error is . (Type an integer or a decimal.) (Type an integer or a decimal.)

Assume that population mean is to be estimated from the sample described. Use the sample results to approximate the margin of error and 95% confidence interval. n = 36, x = 64.4 seconds, s = 6.5 seconds. The margin of error is seconds. (Round to one decimal place as needed.) an example 4

Use technology to construct the confidence intervals for the population variance of and the population standard deviation o. Assume the sample is taken from a normally distributed population. c=0.95, s=37, n= 18 The confidence interval for the population variance is (770 86, 3076.74). (Round to two decimal places as needed.) .... The confidence interval for the population standard deviation is (Round to two decimal places as needed.) More Help me solve this View an example Get more help- Clear all 55°F AO Type here to search 99+ Lenovo AL BTY 10/05/17 Insert Delete PrtSc F11 F12 F9 F10 C F5 F7 F8 F6 F4 F3 Esc F1 F2 Bac @ 23 7 6- 3 4 5 团 %24

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