A random sample of size 175 is drawn from a large population. The population standard deviation is 13.6. The sample mean is 87.3. Estimate the size of the population mean, including margin of error.
a.
87.3 plus-or-minus 4.37
b.
87.3 plus-or-minus 2.06
c.
87.3 plus-or-minus 13.6
d.
87.3 plus-or-minus 1.03

Solutions for 2x+7 less than or equal to 3x-5

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?