Answer:
Step-by-step explanation:
We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean
For the null hypothesis,
µ = 100g
For the alternative hypothesis,
µ < 100g
Due to the <, It means that it is left tailed test.
Since the number of samples is large, the population standard deviation is given, the z test would be used. The formula is
z = (x - µ)/(σ/√n)
Where
x = sample mean
µ = population mean
σ = population standard deviation
n = number of samples
From the information given,
µ = 100g
x = 99 g
σ = 1g
n = 30
z = (99 - 100)/(1/√30) = - 5.48
Looking at the normal distribution table, the probability corresponding to the z score is less than 0.00001
P value < 0.00001
Answer:
360/20
Step-by-step explanation:
20 sec = 360 feet
feet per second means how many feet for every 1 second so
1 sec = 360/20 feet
If you like to venture further, feel free to check out my insta (learntionary). I'll be constantly posting math tips and notes! Thanks!
M = 1 - 2 / 3 - 1
m = - 1 / 2
Answer:
is there a picture or something
Step-by-step explanation:
or like some equation? Im in 7th grade too but i need a picture in order to help you So when u get a picture i edit my anwser and help you
