Discussion:
Q: The amount of water consumed each day by a healthy adult follows a normal distribution with a mean of 1.20 liters. A sample of 10 adults after the campaign shows the following consumption in liters:
- 1.34 1.32 1.38 1.40 1.70 1.40 1.32 1.90 1.38 1.36
At the 0.10 significance level, can we conclude that water consumption has increased? Calculate and interpret the p-value.
(a) State the null hypothesis and the alternate hypothesis. (Round your answers to 2 decimal places.)
(b) State the decision rule for .10 significance level. (Round your answer to 3 decimal places.)
(c) Compute the value of the test statistic. (Round your intermediate and final answer to 3 decimal places.)
(d) At the 0.10 level, can we conclude that water consumption has increased?
(e) Estimate the p-value.