The students who run the school store ordered 1440 pencils. They are putting them in packages of 6 pencils. About how many packa
1 answer:
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Answer:
There is not sufficient evidence to support the claim that there is a linear correlation between the heights and pulse rates of women
Step-by-step explanation:
The correlation coefficient between the variables h(height in inches) and pulse rates (in beats per minute) is 0.202
Sample size n=40
Level of significane alpha = 0.01
Create null and alternate hypothesis as:
H0: r=0
Ha: r not equal 0
(Two tailed test at 1% significance level)
Sample r = 0.202
r difference = 0.202
test statistic t =
df =n-2 =38
t critical value for 0.01 and df =38 is 2.704
Since our test statistic lies below 2.704, we accept null hypothesis
There is not sufficient evidence to support the claim that there is a linear correlation between the heights and pulse rates of women
- i =
- Product rule of radicals: √ab = √a x √b
Firstly, factor out i:
Next, apply the product rule of radicals here as such:
<u>Your answer is 5i√2, or the second option.</u>