Solve the problem.
-A simple random sample of students is selected, and the students are asked how much time they spent preparing for a test. The times (in hours)are as follows: $\begin{array} { c c c c c c c } 1.3 & 7.2 & 4.2 & 12.5 & 6.6 & 2.5 & 5.5 \end{array}$
Based on these results, a confidence interval for the population mean is found to be $\mu = 5.7 \pm 4.4$. Find the degree confidence.
A)90%
B)95%
C)98%
D)99%

Question

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The Answer of Solve the problem.
-A simple random sample of students is selected, and the students are asked how much time they spent preparing for a test. The times (in hours)are as follows: $\begin{array} { c c c c c c c } 1.3 & 7.2 & 4.2 & 12.5 & 6.6 & 2.5 & 5.5 \end{array}$
Based on these results, a confidence interval for the population mean is found to be $\mu = 5.7 \pm 4.4$. Find the degree confidence.
A)90%
B)95%
C)98%
D)99%

Solve the Problem 1.37.24.212.56.62.55.5\begin{array} { c c c c c c c } 1.3 & 7.2 & 4.2 & 12.5 & 6.6 & 2.5 & 5.5 \end{array}1.3​7.2​4.2​12.5​6.6​2.5​5.5​

Solve the Problem $\begin{array} { c c c c c c c } 1.3 & 7.2 & 4.2 & 12.5 & 6.6 & 2.5 & 5.5 \end{array}$