Answer:
Interval for t statistic = (-1.345, 1.345)
Step-by-step explanation:
given that a random sample of size 15 is selected from a normal population. The population standard deviation is unknown.
Since population std deviation is unknown and also sample size <30, we have to use t test only for testing of hypothesis
Given it is a two tailed test at 10% significance level.
Degree of freedom = 15-1 =14
t critical value for df 14 two tailed is
1.345
Hence our test statistic should lie between
(-1.345, 1.345)
Then null hypothesis is accepted
Other wise it is rejected.
Answer: 315,250
Step-by-step explanation:
1. Add the numbers together
245,000 + 46,000 + 132,00 + 838,000 = 1,261000
2. Divide by the # of entries (4)
1,215,046 ÷ 4 = 315250
Answer:
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solution,
Hope this helps...
Good luck on your assignment..
Answer:
8.2pi
Step-by-step explanation:
Hi there!
If the diameter of the rug is 8.2, the radius is 4.1.
The formula for circumference of a circle is 2*pi*r
We'd just plug in 4.1 for r.
2*pi*4.1=8.2pi
Hope this helped! Have a great day! ^u^
