Mariah wanted to make cookies for her family but needed to reduce the recipe. The original recipe required five cups of flour an
2 answers:
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Answer:
Step-by-step explanation:
We can calculate the mean with the following formula:
And if we replace the values given we got:
The mode is the most repeated value and for this case with a frequency of 2 the mode is:
In order to find the median we need to order the dataset on increasing way like this:
50554, 51588, 52384 ,52584, 52762
53108, 53987 , 53987 , 54079, 54364
Since we have 10 values an even number the median is calculated from the average between positions 5 and 6 on the data ordered, and we got:
The mid range is defined like this:
And if we replace we got:
Answer
given,
mean = 12 Kg
standard deviation = 0.5 Kg
assume the observed statistic is = 11.1
now,
assuming the number of sample = 4
n = 4
Hypothesis test:
H₀ : μ≥ 12
Ha : μ < 12
now,
significant level α = 0.05
z* = -3.60
Test statistics, Z* = -3.60
P-value
P(Z<-3.60) = 0.002 (from z- table)
P- value = 0.002
now,
reject the value of H₀ when P-value < α
0.002 < 0.05
since, it is less P-value < α , we have to reject the null hypothesis