Answer:
volume = 10.2 in³
Step-by-step explanation:
r = 2.7/2 = 1.35
volume = 4/3πr³ = 4/3(3.14)(1.35³) = 10.2 in³
Answer:
(0.767,0.833)
Step-by-step explanation:
The 95% confidence interval for population proportion p can be computed as

The z-value associated with 95% confidence level is 1.96.
whereas p=x/n
We are given that x=440 and n=550.
p=440/550=0.8






Thus, the required confidence interval is
0.767<P<0.833 (rounded to 3 decimal places)
Hence, we are 95% confident that our true population proportion will lie in the interval (0.767,0.833)
The answer is c because if head appears and the spinner is spun with 1 - 4 on it then you can get either h1, h2, h3 or h4 and if tales appears and another coin is tossed you can get either th or tt
Answer:
–9t − 19t + 9t − –18t − t = 14
t = -7
Step-by-step explanation:
Hope this helps!!
Answer:
A
The correct option is B
B

C

D
The correct option is D
Step-by-step explanation:
From the question we are told that
The sample size is 
The number that developed nausea is X = 50
The population proportion is p = 0.20
The null hypothesis is 
The alternative hypothesis is 
Generally the sample proportion is mathematically represented as


Generally the test statistics is mathematically represented as
=> 
=> 
=> 
The p-value obtained from the z-table is

Given that the
then we fail to reject the null hypothesis