18 (b)
The weight, \(Y\) grams, of marmalade in a jar can be modelled as a normal variable with mean \(\mu\) and standard deviation \(\sigma\)
18 (b) (i)
18 (b) (i) \(\_\_\_\_\) \(\_\_\_\_\) \(346 - \mu = 1.96 \sigma\)
Fully justify your answer. \(\_\_\_\_\)
[0pt] [3 marks] \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\) \(\_\_\_\_\)
\end{tabular}}
\hline \end{tabular} \end{center} 18 (b) (ii) Given further that $$\mathrm { P } ( Y < 336 ) = 0.14$$ find \(\mu\) and \(\sigma\)
[0pt] [4 marks]
\includegraphics[max width=\textwidth, alt={}, center]{0abb6343-017d-4629-8a2d-cfb405dc2d14-28_2492_1721_217_150}