Answer:
Option A) The null hypothesis should not be rejected.
Step-by-step explanation:
We are given the following in the question:
A one sample test for a proportion is being performed.
Critical Value = 2.33
Test statistic = 1.37
Since the critical value is positive and the calculated test statistic is positive, thus it is a right tailed test for a proportion.
The null and alternate hypothesis can be written as:
Since the calculated test statistic is less than the critical value, we fail to reject the null hypothesis.
We accept the null hypothesis.
Thus, the correct answer is
Option A) The null hypothesis should not be rejected.
Answer:
a) The cost of ribeye steak dinners is $ 16.96.
b) The cost of grilled salmon dinners is $ 23.37.
Explanation:
Let the cost for ribeye steak dinners be m and cost for grilled salmon dinners be n.
A waitress sold 10 ribeye steak dinners and 18 grilled salmon dinners, totaling $590.39 on a particular day.
So, we have
10 m + 18 n = 590.39 -------equation 1
Another day she sold 22 ribeye steak dinners and 9 grilled salmon dinners, totaling $583.49
So, we have
22 m + 9 n = 583.49 -------equation 2
equation 2 x 2
44 m + 18 n = 1166.98 -------equation 3
equation 3 - equation 1
44 m + 18 n - ( 10 m + 18 n ) = 1166.98 - 590.39
m = 16.96 $
Substituting in equation 1
22 x 16.96 + 9 n = 583.49
n = 23.37 $
a) The cost of ribeye steak dinners is $ 16.96.
b) The cost of grilled salmon dinners is $ 23.37.
Answer:
180-98=92
32+92=114
180-114
x=66°
Step-by-step explanation:
Answer : option A
To find the range of scores that represents the middle 50 % of the student who took the test , we find inter quartile
Inter quartile range is the middle 50% of the given range of scores.
The difference between the upper quartile and lower quartile is the inter quartile that is middle 50%
From the diagram , we can see that
Upper quartile = 89
lower quartile = 65
So range is 65% to 89%
