1. A manufacturer of detergent claims that the mean weight of a particular box of detergent is 3.25 pounds. A random sample of 64 boxes revealed a sample average of 3.238 pounds with a standard deviation of 0.117 pounds. Using the 1% level of significance, is there evidence that average weight of the boxes is different from 3.25 pounds? 2. An experiment was performed with five hop plants. One half of each plant was pollinated and the other half was non-pollinated. The yield of the seed of each hop plant is tabulated as follows: pollinated 0.78 10.76 10.43 10.92 10.86 Non-pollinated | 0.21 10.12 0.32 0.29 0.30 Determine at the 5% level of significance whether the pollinated half of the plant gives a higher yield in the seed than the non-pollinated half