Answer the image. Also you don't need to explain your answer.
1 answer:
Answer:
Step-by-step explanation:
To find the total length, you should add all lengths and calculate the sum. There are
3 buttons of length inch
2 buttons of length inch
4 buttons of length inch
2 buttons of length inch
3 buttons of length inch
2 buttons of length inch
2 buttons of length 1 inch
2 buttons of length inches
Total length:
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Answer:
At 5% significance level, it is statistically evident that there is nodifference in the proportion of college students who consider themselves overweight between the two poll
Step-by-step explanation:
Given that a poll was taken this year asking college students if they considered themselves overweight. A similar poll was taken 5 years ago.
Let five years ago be group I X and as of now be group II Y
(Two tailed test at 5% level of significance)
Group I Group II combined p
n 270 300 570
favor 120 140 260
p 0.4444 0.4667 0.4561
Std error for differene =
p difference = -0.0223
Z statistic = p diff/std error = -1.066
p value =0.2864
Since p value >0.05, we accept null hypothesis.
At 5% significance level, it is statistically evident that there is nodifference in the proportion of college students who consider themselves overweight between the two poll