Answer: -1.5
Step-by-step explanation:
When population standard deviation is known, then the formula to find the z-test statistic for population mean is given by :-
, where n= Sample size.
= Population mean
= Sample mean
= Population standard deviation.
As per given , we have (average infants contracted typhoid each month)
n= 4 (No. of months)
Then , the value of the appropriate test statistic will be :
Hence, the value of the test statistic = -1.5
Answer:
h = -7x - 11
Step-by-step explanation:
Yes
Y varies directly with x, it is a direct relationship between the two.
4x - 12
You can get this by switch the f(x) and the x and then solving for the new f(x)
<em>One mile is equal to 1760 yards. Therefore, 1.5 miles is equal to 1.5 x 1760 = 2640 yards.</em>
<em>1.5 mile = 2640 yards</em>
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<em>Hope this helps</em>
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<em>Please give me Brainliest</em>