The fill mass $X\,$ g of a product is Normally distributed with known standard deviation 6 g. A researcher tests $H0:μ=50H_0:\mu=50$ against $H1:μ>50H_1:\mu>50$ , where $\mu\,$ is the population mean fill mass in grams, using a random sample of size 36.

Find the critical region for $\bar X\,$ at the 5% significance level.

A sample gives $xˉ=51.7\bar x=51.7$ . Carry out the test and interpret the result in context.

Find the critical region for $\bar X\,$ at the 5% significance level.

A sample gives $xˉ=51.7\bar x=51.7$ . Carry out the test and interpret the result in context.

2 Statistics

Question 321

Markscheme

2 Statistics

Question 321

Markscheme

2 Statistics

Question 321

2 Statistics Questions

2 Statistics

Question 321

2 Statistics Questions