Answer:
H0: μ = 8.3 hours
Ha: μ > 8.3 hours
We need to remember that a type of error II if the error associated when we NO reject the null hypothesis when actually the alternative hypothesis is true. And is also known as false negative. The best answer for this case would be:
D. The manufacturer will decide the mean battery life is 8.3 hours when in fact it is greater than 8.3 hours.
Since we are FAILING to reject the null hypothesis when the true mean is actually higher than the value specified
Step-by-step explanation:
For this case we want to determine if mean running time has increased as a result of the new change so then the system of hypothesis are given by:
Note: we assume that the value to check in order to be consistent with the options is 8.3
H0: μ = 8.3 hours
Ha: μ > 8.3 hours
We need to remember that a type of error II if the error associated when we NO reject the null hypothesis when actually the alternative hypothesis is true. And is also known as false negative. The best answer for this case would be:
D. The manufacturer will decide the mean battery life is 8.3 hours when in fact it is greater than 8.3 hours.
Since we are FAILING to reject the null hypothesis when the true mean is actually higher than the value specified
Answer:
I believe your answer would be C. square root of 67
Step-by-step explanation:
If 8 is the square root of 64 and the missing number is just over 8, square root of 72 would be too much and A. and D. would be too little. I do deeply apologize if this is incorrect.
Answer:
73
Step-by-step explanation:
73, 64+43= 107. 180-107= 73
Answer: 69,830
Step-by-step explanation: you basically move the decimal to the right for positive left for negitive and move as many places as the power of the exponent
![(3x - 5) + ( {x}^{2} + 1) \\ 3x - 5 + {x}^{2} + 1 \\ {x}^{2} + 3x - 4](https://tex.z-dn.net/?f=%283x%20-%205%29%20%2B%20%28%20%7Bx%7D%5E%7B2%7D%20%20%2B%201%29%20%5C%5C%203x%20-%205%20%2B%20%20%7Bx%7D%5E%7B2%7D%20%20%2B%201%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20%2B%203x%20-%204)
Therefore the answer is x²+3x-4