A university department administers a survey, regarding student satisfaction. Based on the survey results, the department provides a confidence interval

estimate of 60% to 80% for student satisfaction. If the department wishes to

construct a confidence interval that more accurately represents the

proportion of student satisfaction, how should the design be altered?

A. Use a smaller confidence level

B. Use a smaller sample size

C. Use a larger confidence level

D. Use a larger sample size

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yes

step-by-step explanation:

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110