Question

The amount of water consumed each day by a healthy adult follows a normal distribution with...

The amount of water consumed each day by a healthy adult follows a normal distribution with a mean of 1.20 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:

1.34 1.32 1.38 1.40 1.70 1.40 1.32 1.90 1.38 1.36

At the 0.100 significance level, can we conclude that water consumption has increased? Calculate and interpret the p-value.

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  1. State the null hypothesis and the alternate hypothesis. (Round your answers to 2 decimal places.)
  1. State the decision rule for 0.100 significance level. (Round your answer to 3 decimal places.)
  1. Compute the value of the test statistic. (Round your intermediate and final answer to 3 decimal places.)
  1. At the 0.100 level, can we conclude that water consumption has increased?
  1. Estimate the p-value.

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