Ahealth survey determined the mean weight of a sample of 762 men between the ages of 26 and 31 to be 173 pounds, while the mean weight of a sample of 1,561 men between the ages of 67 and 72 was 162 pounds. the difference between the mean weights is significant at the 0.05 level. determine the meaning of this significance level.

Step-by-step explanation:

The difference in weights compared over the two different groups is significant and at 0.05 level of significance, the age of men is directly linked with their mean weight.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2