The amount of water consumed each day by a healthy adult follows a normal distribution with a mean of 1.32 liters. A health campaign promotes the consumption of at least 2.0 liters per day. A sample of 10 adults after the campaign shows the following consumption in liters: 1.35 1.42 1.34 1.42 1.44 1.64 1.90 1.64 1.50 1.38 At the 0.025 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 0.025 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) Estimate the p-value.
The amount of water consumed each day by a healthy adult follows a
| 1.35 | 1.42 | 1.34 | 1.42 | 1.44 | 1.64 | 1.90 | 1.64 | 1.50 | 1.38 |
At the 0.025 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 0.025 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) Estimate the p-value.
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