HA: < 155 The population is normally distributed. A sample produces the following observations: 130 152 156 151 131 155 Conduct the test at the 5% level of significance a. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round final answer to 2 deci places.) Test statistic b. Find the p-value. 0.05 12 p-value < 0.10 0.025 p-value < 0.05 0.01 p-value < 0.025 p-value < 0.01 0.10 Op-value

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