Jackson sampled 101 students and calculated an average of 6.5 hours of sleep each night with a standard deviation of 2.14. Using a 95% confidence level, he also found that t* = 1.984. c o n f i d e n c e space i n t e r v a l space equals space x with bar on top plus-or-minus t asterisk times space bevelled fraction numerator s over denominator square root of n end fraction A 95% confidence interval calculates that the average number of hours of sleep for working college students is between hours. Answer choices are rounded to the hundredths place.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

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