The following data are from a simple random sample: 8, 11, 13, 10, 13, 17. The point estimate of the population mean is:

A random sample of 100 individuals provides 25 positive responses.

Then the point estimate of the population proportion with "positive" responses is:

If the sample size is 45, then the degree of freedom is equal to

If a sample has 'n' observation $x_1$, $x_2$ ............. $x_n$ with 'm' constraints on these values then degree of freedom of sample statistic is:

Consider the following hypothesis

$H_0: \mu = 315$ and $H_a: \mu \neq 315$

A sample of 60 provided a sample mean of 324.6. The standard deviation ($\sigma$) is 14 and level of significance $\alpha = 0.05$. Then the confidence interval is:

[Given: $Z_{a/2}{\frac{14}{\sqrt60}} = 3.54$]

If we reject the null hypothesis when it is true, we might be making

For the data from the simple random sample as: 5, 8, 10, 7, 18, 12

The point estimate of the population standard deviation is