In a study of performance ratings of ex-smokers, a random sample of 34 ex-smokers had a mean rating of 2.21and a sample standard deviation of 2.21.for an independent random sample of 86 long-term ex-smokers, the mean rating was as 1.47 and the sample standard deviation was 1.69. find the lowest level of significance at which the null hypothesis of equality of the two population means can be rejected against the two-sided alternative

no

explanation:

you can be freinds, and people but not follow people.

school a:

minimum value is 2

maximum value is 22

the lower quartile is 2.5

the median is 10

the upper quartile is 15.5

school b:

minimum value is 9

maximum value is 20

the lower quartile is 12

the median is 16

the upper quartile is 18

box plot for school a isn't symmetrical. the data tails on the right

box plot for school b isn't symmetrical. the data tails on the left

hope i

-lavira: )

the formula of a midpoint between a abd b: