25 - 8 = 17
She had 17 games at first
hope this helps!
Answer:
4 I. a half hour
Step-by-step explanation:
16 divided by 4 is 4
Answer:
the median value of the given data set is 30
Step-by-step explanation:
The computation of the median value is as follows:
27,28,28,29,29,29,30,30,30,31,31,31,33,34
There are 14 entries
So the mid value is 30
Hence the median value of the given data set is 30
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)
