Mathematics, 26.02.2020 02:28 nataoli3843

Given a test statistic of t=2.315 of a left tailed test with n=8

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Answer from: sasalove

Null hypothesis: $\mu =110$

Alternative hypothesis: $\mu \neq 110$

The sample size on this case is n=8, then the degrees of freedom are given by:

df = n-1= 8-1=7

The statistic is given by:

$t= \frac{\bar X -\mu}{\frac{s}{\sqrt{n}}}$

For this case the value of the statistic is given t = 2.315

Since we are using a bilateral test the p value would be given by:

$p_v = 2*P(t_{7}2.315) =0.054$

And we can use the following excel code to find it:

"=2*(1-T.DIST(2.315;7;TRUE))"

Since the p value is higher than the significance level given we FAIL to reject the null hypothesis. And the best conclusion would be:

0.05<P-value <0.10, fail to reject the null hypothesis

Step-by-step explanation:

Assuming this complete question :"Given a test statistic of t=2.315 of a left-tailed test with n=8, use a 0.05 significance level to test a claim that the mean of a given population is equal to 110.

Find the range of values for the P-value and state the initial conclusion 1 point) 0.05<P-value <0.10; reject the null hypothesis

0.05<P-value <0.10, fail to reject the null hypothesis

0.025 < P-value <0.05; reject the null hypothesis

0.025< P-value<0.05; fail to reject the null hypothesis "

For this case they want to test if the population mean is 110 or no, the systemof hypothesis are:

Null hypothesis: $\mu =110$

Alternative hypothesis: $\mu \neq 110$

The sample size on this case is n=8, then the degrees of freedom are given by:

df = n-1= 8-1=7

The statistic is given by:

$t= \frac{\bar X -\mu}{\frac{s}{\sqrt{n}}}$

For this case the value of the statistic is given t = 2.315

Since we are using a bilateral test the p value would be given by:

$p_v = 2*P(t_{7}2.315) =0.054$

And we can use the following excel code to find it:

"=2*(1-T.DIST(2.315;7;TRUE))"

Since the p value is higher than the significance level given we FAIL to reject the null hypothesis. And the best conclusion would be:

0.05<P-value <0.10, fail to reject the null hypothesis

Answer from: Quest

343t464564435rri76i6u

step-by-step explanation:

because i said it is

Answer from: Quest

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

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Given a test statistic of t=2.315 of a left tailed test with n=8...