Answer:
b. There is no difference between p1 and p2.
Step-by-step explanation:
Given that a 90% confidence interval for the difference of proportions contains some positive and some negative values
i.e. confidence interval lower bound is negative and upper bound is positive
This confirms that 0 is contained in the confidence interval for difference of proporitons at 90%
Hence for the hypotheses
we find that 0 is inside the confidence interval
This implies null hypothesis is accepted
Hence we conclude that there is no difference
b. There is no difference between p1 and p2.
Answer:
3/2
Step-by-step explanation:
In order to find the slope with two points, you use this formula:
y2-y1 / x2 - x1.
y2 is 5 and y1 is -4. 5 - -4 = 9
x2 is 2 and x1 is -4. 2 - - 4 = 6
9/6 = 3/2.
Answer: 10
Step-by-step explanation:
set the two expressions equal to each other
13+7.5n = 11+7.7n
0.2n = 2, n = 10
Answer:
Step-by-step explanation:
Let x represent the number of rides Beth rides and y represent the number of exhibits she views.
Each ride costs $7 to ride and each exhibit costs $3 to view.
This means that x rides will cist x × 7 = $7x
Also, if she views y exhibits, the cost will be y × 3 = $3y.
Total cost of x rides and y views will be 7x + 3y
if she has at most $98 to spend at the fair, it means that all she can spend must be lesser than or equal to $98
The required expression will be
7x + 3y </=8
Answer:
21.00d+0.10m<=115.00
Step-by-step explanation:
d=days m=miles it must be less than or equal to 115 dollars