38.72 divided by 1.1 equals to 35.2.
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Its 7/20 because 35% as a fraction is 35/100 and u divided 35 by 5 and get 7 as your top number and divided 100 by 5 and get 20 for your bottom number
Answer:
<h3>
x = -2 or x = 7</h3>
Step-by-step explanation:
Answer:
for 0.05 level of significance p value is greater than so it cant not reject
Step-by-step explanation:
given data
mean = 12499 miles
sample n = 50
standard deviation = 3140 miles
μ = 12800 miles
to find out
Is there support for claim 0.05 level significance
solution
we find here first standard statistic test for z
z = ( mean - μ) / ( SD × √n ) ................1
put here value
z = ( 12499 - 12800) / ( 3140 / √50 )
z = -0.67783
and we can find from table
P value for z is -0.67783 is 0.2489
so for 0.05 level of significance p value is greater than so it cant not reject
