Answer:
Since the calculated value of Z does not fall in the critical region we accept our null hypothesis that mean = 60 seconds
Step-by-step explanation:
State the null hypothesis
H0: u = 60against the claim
Ha u≠ 60 (this is a two tailed test)
Sample size n= 36
Sample mean=X`= 55
Population mean = u= 60
The significance level α = 0.05
Standard deviation= Sd = 22 seconds
Z= X`- u / Sd /√n
Z= 55- 60 / 22/√6
z= - 5/22/6
Z= -1.3635
The value of z from the table is Z∝/2= ±1.96
The critical region is less than - 1.96 and greater than 1.96.
Since the calculated value of Z does not fall in the critical region we accept our null hypothesis that mean = 60 seconds
Answer:
<h2>The answer should be true.</h2><h2>y<40</h2><h2>1<16</h2>
Step-by-step explanation:
To solve this inequality, isolate the term of y from one side of the equation.
y-24<16
First, add 24 from both sides.

Solve.
Add.


Therefore, the solution is y<40.
y=25 should be subtract by 24 is less than 16.
25-24<16
Solve.
Subtract.
25-24=1
Rewrite the problem down.
1<16
These statements are true.
3.2 is 16% of 20 you turn 20 into a decimal and multiply 3.2 by .20 and get the answer
The number 390.0826 in an expanded form is 300 + 90 + 8/100 + 2/1000 + 6/10000
<h3>How to write the number in an expanded form?</h3>
The number is given as:
390.0826
Next, we split the numbers:
This is done as follows:
390.0826 = 300 + 90 + 0.08 + 0.002 + 0.0006
Express the decimals as fractions
390.0826 = 300 + 90 + 8/100 + 2/1000 + 6/10000
Hence, the number 390.0826 in an expanded form is 300 + 90 + 8/100 + 2/1000 + 6/10000
Read more about expanded forms at
brainly.com/question/655925
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The answer is
x^5
is correct......