Answer:
Number of students ; 60
Explanation:
Using the formula for p +- z * Sqrt ( pq/n )
Let us first calculate the Margin of Error
= 0.816 –0.7 = 0.116
•z* = 1.96
P = (0.584 + 0.116 ) = 0.7
Q = 1- p = 1 – 0.7 = 0.3
Now inserting the values in the formula; we get
0.116 = 1.96 x sqrt { ( 0.7 x 0.3) / n }
Solving the above equation
N = 60 (rounded off to nearest number)
Hence the number of students that were selected by the environmental teacher in the sample is 60
Solar energy sources would have the least ecological imoact
Based on the calculations, the expected count for the cell that corresponds to women who walk is equal to 14.67.
<h3>The types of goodness-of-fit test.</h3>
In statistics, there are four types of goodness-of-fit test and these include the following:
Based on information provided in the table, we can deduce the following:
Number of women who walk = 15 women.
Total population = 220.
For the expected cell that corresponds to women who walk:
Expected value = 220/15
Expected value = 14.67.
Read more on goodness-of-fit test here: brainly.com/question/16910222
<span>The expectations that come the with stereotype can pronounce a chain of events that will almost inevitably lead to their own confirmation.
Hope this was helpful. </span>
Answer:
not so good lol life kinda sucks