Answer:
The upper bound is 399.5
Step-by-step explanation:
Let's start by calculating the mean value of the distribution as the addition of all values given divided by 12:
Average = 289.75.
If the standard deviation is 56, then the upper bound in 95% the confidence interval for the mean price of the phones is going to be given by the mean value added to 56 times 1.96 (since 95% of the population is withing 1.96 times the standard deviation)
That is: 289.75 + 56 * 1.96 = 399.51
which rounded to one decimal place gives: 399.5
29.8 ÷ 3 is 9.9333 repeating
Answer:
umm km / nk
Step-by-step explanation:
I DONT know if this is right...…can u plz mark me brainiest? I really need it!!!!
Answer:
1,716
Step-by-step explanation:
I just took the quiz.
The answer is h to the power of 7 because you add the exponents
