Answer:
CI = 29.8 ± 3.53
Critical value is z = 2.58
Step-by-step explanation:
First of all let's find margin of error. It is given by the formula;
ME = zσ/√n
We are given;
Standard deviation; σ = 3.62
Sample size; n = 7
Mean; x¯ = 29.8
Now, z-value for 99% Confidence level is 2.58
Thus;
ME = (2.58 × 3.62)/√7
ME = 3.53
CI is written as;
CI = x¯ ± ME
CI = 29.8 ± 3.53
Critical value is z = 2.58
Answer:
<h2>
<em><u>60</u></em></h2>
Step-by-step explanation:
tiny stuffed zebras(tsz)= $3
giant stuffed zebras(gsz)=$14
total sold=$208
208÷3=69.3recurring so that's incorrect as you cannot sell .3 of a zebra so keep going until you find the next whole number. (trial and error)
207÷3=69 but it cant be this as it is not the whole money made
208-14=194
194÷3=64.6recurring (cannot be this)
194-14=180
180÷3= 60 = answer as 60 tsz is $180 and add that to 2 gsz and that totals to 208 which is the total
I really need one too. Thanks for the question.
Adding 49 will explain it properly just do that and you will get the answers