Answer:
m=-7 or m=7
Step-by-step explanation:
Ok but where is the options?
Answer:
There is a significant difference between the two proportions.
Step-by-step explanation:
The (1 - <em>α</em>)% confidence interval for difference between population proportions is:
Compute the sample proportions as follows:
The critical value of <em>z</em> for 90% confidence interval is:
Compute a 90% confidence interval for the difference between the proportions of women in these two fields of engineering as follows:
There will be no difference between the two proportions if the 90% confidence interval consists of 0.
But the 90% confidence interval does not consists of 0.
Thus, there is a significant difference between the two proportions.
Answer:
x = 7
Step-by-step explanation:
Because all the sides are equal in this triangle, all the 3 angles are 9x-3 each.
So, 3*(9x-3) = 180°
=> 27x - 9 = 180°
Add 9 on both the sides,
=> 27x = 180+9 = 189
Divide by 27 on both the sides,
x = 189/27 = 7