Will someone please fill in the rest of the missing blank spaces for the lab rep

Question

Will someone please fill in the rest of the missing blank spaces for the lab report for question 10.8. Thank you

10.8 Use Minitab 2 pts. 3 pts. 2 pts 1 pt. Normality test p-value: group A, group B Are variances equal? No Accept or reject null hypothesis (Ho)? Accept Does growth regulator affect internode growth? Use Minitab: Test reaction time instead of pulse rate Ho: Are variances equal? Accept or reject null hypothesis (Ho)? Among women, do smokers have faster reaction times than non-smokers? p-value 0.0235 10.10 2 pts. 3 pts 2 pts. 1 pt. Hi Normality test p-value: group A p-value 10.11 By hand or use Excel Ho: The population means of the hairy and non-hairy spiders are not significant H1: The population means of the hairy and non-hairy spiders are significant Ua: 146.5 Accept or reject null hypothesis (Hor nejeut 2 pts 3 pts. 2 pts Alpha: 0.05 527 words Ub: 63.5 Ueritical: 73 ie hairy spiders scarier? Yes

Explanation / Answer

10.8

here we use R- software and code for the paired t- test is as follows

> Treated_plant<-c(15.2,12.3,11.6,14.8,10.2,14.2)
> untreated_plant<-c(13.5,9.8,10.2,8.7,9.2,9.0)
> t.test(Treated_plant,untreated_plant,paired=TRUE,conf.level=0.95,alternative = c("two.sided"),var.equal = FALSE)

OUTPUT

Paired t-test

data: Treated_plant and untreated_plant
t = 3.411, df = 5, p-value = 0.01902
alternative hypothesis: true difference in means is not equal to 0
95 percent confidence interval:
0.7350741 5.2315925
sample estimates:mean of the differences

2.983333

and AD test for normality was not performed because the minimum number of observation is 7 but in our case, no. of observation is only 6.

> library(nortest)
> ad.test(Treated_plant)
Error in ad.test(Treated_plant) : sample size must be greater than 7

> ad.test(untreated_plant)
Error in ad.test(untreated_plant) : sample size must be greater than 7

But in our test statistics, the value of p is 0.01902 which is less than 0.025 it means there is a significant difference between them. i.e, hence we reject the null hypothesis.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.