The key here is to not worry too much and just follow PEMDAS.
Here we have the expression . Following PEMDAS, we complete the expression inside the parentheses first, or
. This gives us
or just
Hope this helps.
What is the interquartile range of this data? 5 8 13 17
1 answer:
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Answer:
The group's claim is not supported at 1% significance level.
Step-by-step explanation:
given that a local group claims that the police issue more than 60 speeding tickets a day in thire area
The data they collected for 2 weeks is given below:
70 48 41 68 69 55 70
57 60 83 32 60 72 58
Std error of mean =
(Right tailed test at 1% significance level)
Mean difference = 0.10
Test statistic t with df 13 = mean difference/std error
= 0.029
p value = 0.4886
Since p >0.01, we accept null hypothesis
The group's claim is not supported at 1% significance level.