3.2+Confidence+Intervals+NCEA+Info

NCEA Info - mean - proportion - difference between two means. || ** Achievement with Merit ** || · Demonstrate an understanding of confidence intervals. || · This will include some of: - interpreting confidence intervals - justifying or refuting claims about a   population parameter - calculating the sample size required to   meet a pre-specified precision - estimating population totals. || - effect of changing parameters on the precision or standard error - applications of the Central Limit Theorem, i distribution of sample means ii distribution of sample totals iii use of probability including normal distribution. ||
 * || ====== **Achievement Criteria** ====== || ====== **Explanatory Notes** ====== ||
 * == Achievement == || · Calculate confidence intervals for population parameters. || ·  Population parameters for which confidence intervals are calculated will be selected from:
 * <span style="font-size: 12pt; font-family: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-AU; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">
 * ** Achievement with Excellence ** || <span style="font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol; msofareastfontfamily: Symbol; msobidifontfamily: Symbol; msolist: Ignore;">· Demonstrate an understanding of the theory behind confidence intervals. || <span style="font-family: Symbol; mso-fareast-font-family: Symbol; mso-bidi-font-family: Symbol; msofareastfontfamily: Symbol; msobidifontfamily: Symbol; msolist: Ignore;">·  The understanding may involve: