I need the test statistic and the p value. D Chrome-Do Homework-Angleana Phippa

Question

I need the test statistic and the p value.

D Chrome-Do Homework-Angleana Phippa à Secure https:/www.mathxl.com/Student/PlayerHomework.aspx?homeworkld 463616582&questionld-3;&flushed-false;&cld-4822368;&centerwin-yes; MAT113 Intro to Stats (UMM-Spring 2018) Angleana Phipps 13124/18 3.33 PM MyLabs Homework: Assignment #8 (Ch 83) o My Cours Score: 0 of 1 pt Save 5 of 7 (5 complete) Hw Score: 57.14%, 4 of 7 pts Course hH E Question Help X 8.3.21-E d in difflerent tradtional medicines. Use a 0.05 significance level to test the claim that the mean lead concentration for all such medicines is less than 17 9g 12 8 1015.5 115 15 155 19.5 6 9 What are the nul and ahernative hypotheses? Study eText Chapter Tools C. Ho : >170g Determine the test statistic (Round to two decimal places as needed.) Course Enter your answer in the answer box and then click Check Answer Check Answer Clear A

Explanation / Answer

Ho:mu=17

H1:mu<17

use below Rcode:

leadconc <- c(12,8,10,15.5,11.5,15,15.5,19.5,6,9)
t.test(leadconc,mu=17,alternative = "less")
Output:

One Sample t-test

data: leadconc
t = -3.6623, df = 9, p-value = 0.002608
alternative hypothesis: true mean is less than 17
95 percent confidence interval:
-Inf 14.60255
sample estimates:
mean of x
12.2

ANSWERS:

t=-3.66

p=0.0026

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