Respuesta :

Answer

The point estimate of the mean is [tex]\= x = 32[/tex]

The margin of error is  [tex]E =6[/tex]

Explanation

From the question we are told that

    The lower bound of the interval is  [tex]a = 26[/tex]

     The upper bound of the interval  is  [tex]b = 38[/tex]

Generally the point estimate of the population mean is mathematically represented as

            [tex]\= x = \frac{a +b}{2}[/tex]

=>          [tex]\= x = \frac{26 +38}{2}[/tex]

=>          [tex]\= x = 32[/tex]

Generally the margin of error is mathematically represented as

             [tex]E = \frac{ b- a}{2}[/tex]

=>         [tex]E = \frac{ 38- 26}{2}[/tex]

=>         [tex]E =6[/tex]