Question

Homework: 9.2 - Confidence Intervals for Means Save Score: 0.13 of 1 pt 6 of 7 (7 complete) HW Score: 83.21%, 5.83 of 7 pts % 9.2.31 Question Help The following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. Complete parts a) through d) below. 5.20 5.02 5.72 4.57 4.76 4.89 4.74 4.56 4.80 5.19 5.70 4.61 Click the icon to view the table of critical t-values. (a) Determine a point estimate for the population mean. A point estimate for the population mean is 4.98 (Round to two decimal places as needed.) (b) Construct and interpret a 95% confidence interval for the mean pH of rainwater. Select the correct choice below and fill in the answer boxes to complete your choice (Use ascending order. Round to two decimal places as needed.) O A. There is a 95% probability that the true mean pH of rain water is between and OB. If repeated samples are taken, 95% of them will have a sample pH of rain water between and

Answer 1

Basd dn data Sampu sizu Sample mian n=12 51.70 l2 sanpl std div n-1 1788 Oi4032 paint ts timalu-T 4.4AR C-I for lis A sha L498 + 2.201 x 04032//f O.2562 4.7238 5.2362 Answes AThix is is V A5 paubabiliy that watir bitween is 4.32 Ond 29