There were 324 adults surveyed. among the participants, the mean number of hours of sleep each night was 7.5 and the standard deviation was 1.6. the margin of error, assuming a 95% confidence level, is approximately . round to the nearest hundredth

Answer with explanation:

Total Population Being Surveyed = 324

Mean of the Population = 7.5

Standard Deviation =1.6

Margin of Error is given by the formula

Marginal of Error = 0.17 (approx)  

Mean =7.5

Confidence Interval for a population when Z score at 95% is calculated  =Mean margin of error

    =that is between ,7.50 +0.17 to ,7.50 -0.17

  =Between ,7.33 to 7.67

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.