Answer:
the answer is 5x divide by 12
Answer:
Step-by-step explanation:
C×2
=2c
Answer:
d. Reject H0 if t < -1.6604
Step-by-step explanation:
This is a hypothesis test for the population mean.
The claim is that the mean number of tissues used during a cold is significantly less than 60.
Then, the null and alternative hypothesis are:
The significance level is 0.05.
The critical value for a level of significance is α=0.05, a left-tailed test and 99 degrees of freedom is tc=-1.6604.
The decision rule is that if the test statistic is below tc=-1.6604, the null hypothesis is rejected.
Answer:
The cost of plans is same for 120 minutes.
Step-by-step explanation:
Given:
One cellular phone charge = $26.50 a month and $0.15 per minute.
Another cellular charges = $14.50 a month and $0.25 per minute.
Let the number of minutes at which both plans are same be = minutes
For minutes the plan charges are as following:
1)
2)
So, we equate the above expressions as the plans are same.
Multiplying both sides by 100.
Subtracting both sides by 1450.
Subtracting both sides by
Dividing both sides by 10.
∴
The cost of plans is same for 120 minutes.