The tax on a 48 dollar item would be $4.08
Answer:
There is enough evidence to reject the manufacturer’s claim and the standardized test statistic z is -3.43
Step-by-step explanation:
A manufacturer of sprinkler systems designed for fire protection claims that the average activating temperature is at least 135°F.
So, Null hypothesis:
Alternate hypothesis :
To test this claim, you randomly select a sample of 32 systems and find the mean activation temperature to be 133°F.
x=133
n = 32
Population Standard deviation =
Formula :
z=-3.43
Refer the z table for p value
p value = 0.0003
p value < α
So, we failed to accept null hypothesis
Hence there is enough evidence to reject the manufacturer’s claim and the standardized test statistic z is -3.43
Answer:
4/6
Step-by-step explanation:
look for the LCM of the denominators then divide with each denominator and multiply the answer you have got with the numerator after add it you want change it to it's simplest form
Answer:
$20.4 is his total. No he will not have enough money. He would be $5.40 short. I hope this helps. Please follow me and give me the Brainliest answer do I can continue providing you with help. I'm available daily! :)
Good luck and I hope this helps!
Step-by-step explanation: