Answer:
d. Reject H0 if t < -1.6604
Step-by-step explanation:
This is a hypothesis test for the population mean.
The claim is that the mean number of tissues used during a cold is significantly less than 60.
Then, the null and alternative hypothesis are:
The significance level is 0.05.
The critical value for a level of significance is α=0.05, a left-tailed test and 99 degrees of freedom is tc=-1.6604.
The decision rule is that if the test statistic is below tc=-1.6604, the null hypothesis is rejected.
Answer:
-0.43
Step-by-step explanation:
100/-43
Step-by-step explanation:Infant mortality is the death of an infant before his or her first birthday. The infant mortality rate is the number of infant deaths for every 1,000 live births. ... In 2019, the infant mortality rate in the United States was 5.6 deaths per 1,000 live births. (See Mortality in the United States, 2019).,....
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Answer:
The x-value is between –1 and –2, and the y-value is between 3 and 4
Step-by-step explanation:
we have
y=-2x+1 ----> equation A
y=x+5 ----> equation B
Solve the system of equations by elimination
Multiply the equation B by 2 both sides
2y=2x+10 ----> equation C
Adds equation A and equation C
y=-2x+1
2y=2x+10
---------------
y+2y=1+10
3y=11
y=11/3
Find the value of x
y=x+5
11/3=x+5
x=(11/3)-5
x=-4/3
therefore
x=-1.33, y=3.67
The x-value is between –1 and –2, and the y-value is between 3 and 4
Answer:
Step-by-step explanation: