Answer:
yes it is a scale copy
Step-by-step explanation:
Answer:
Test Statistic is 2.34
Step-by-step explanation:
File Attached. kindly view it.
Answer:
40%
Step-by-step explanation:
Subtract 1,400 by 1,000 then divide by 1,000
Answer:
<em><u>Only 4 different 3 topping pizzas are possible.</u></em>
Step-by-step explanation:
<em><u>H</u></em><em><u>o</u></em><em><u>p</u></em><em><u>e</u></em><em><u> </u></em><em><u>i</u></em><em><u>t</u></em><em><u> </u></em><em><u>w</u></em><em><u>o</u></em><em><u>r</u></em><em><u>k</u></em><em><u>s</u></em><em><u> </u></em><em><u>o</u></em><em><u>u</u></em><em><u>t</u></em><em><u> </u></em><em><u>:</u></em><em><u>)</u></em><em><u>)</u></em>
<h2>
Answer : (2.67, 3.53)</h2><h2>
</h2>
Step to step explanation:
Confidence interval for mean, when population standard deviation is unknown:
, where 
= sample mean
n= sample size
s= sample standard deviation
= Critical t-value for n-1 degrees of freedom
We assume the family size is normal distributed.
Given, n= 31 , 
, s= 1.42 ,
Critical t value for 
and degree of 30 freedom
= 1.697 [By t-table]
The required confidence interval:
Hence, the 90% confidence interval for the estimate = (2.67, 3.53)
