Its hard but you can look it up on google
Answer:
(0.8165 ; 0.8819)
Lower boundary = 0.8165
Upper boundary = 0.8819
Step-by-step explanation:
Given :
Sample proportion. Phat = x/ n = 276/ 325 = 0.8492
Confidence interval :
Phat ± margin of error
Margin of Error = Zα/2* [√Phat(1 - Phat) / n]
Phat ± Zα/2* [√Phat(1 - Phat) / n]
The 90% Z critical value is = 1.645
0.8492 ± 1.645*[√0.8492(1 - 0.8492) / 325)
0.8492 ± 1.645*[√0.8492(0.1508) / 325]
0.8492 ± 1.645*√0.0003940288
0.8492 ± 0.0326535
Lower boundary = 0.8492 - 0.0326535 = 0.8165
Upper boundary = 0.8492 + 0.0326535 = 0.8819
Confidence interval = (0.8165 ; 0.8819)
200 more than 355 is 555..
Answer:
A,D, and E.
Step-by-step explanation:
A) If you add 16 Large Kids' Meals to 55 Regular Kids' Meal, you will end up with a total of 71. This makes A true.
D)If you look under the soda category and the regular kids' meal, you will see 63. This is proves that D is right because 63 is stated in the chart.
E) Earlier, we found out that 16 is sufficient to Large Kids' Meal ordered with Milk. If we take that information and add it to the other Large Kids' Meals that were ordered, we will get a total of 124 large-sized meals that were ordered.
B) This answer choice isn't correct because 63 + 86 does not equal 280, and instead, it equals 149. 63 represents soda that was ordered with regular-sized orders and 86 represents soda that was ordered with large-sized orders.
C) This answer choice isn't correct either because 82 + 22 does not equal 60. 82 represents regular-sized meals that were ordered with a juice box and 22 represents large-sized meals that were ordered with a juice box.
