10.3 Matched Samples - Outcome 10.3Be able to analyze the difference between two population means when the samples are matched BUQU 1230 Esther Tiessen

Hypothesis Tests Statistical Inference About Means and Proportions with Two Populations  BUQU 1230  Esther Tiessen Outcome 10.3—Be able to analyze the difference between two population means when the samples are matched.

Hypothesis Tests Two Populations Statistical inference about the difference between two population: ü means (σ1 and σ2 known) ü means (σ1 and σ2 unknown)  means (matched samples)  proportions

Hypothesis Tests Two Populations Statistical inference about the difference between two population: ü means (σ1 and σ2 known) ü means (σ1 and σ2 unknown)  means (matched samples)  proportions t -Test: Paired -Sample for Means

Hypothesis Tests Example A Winnipeg based company has documents that must be quickly distributed to district offices throughout Canada. The firm must decide between two delivery services, UPX and INTEX, to transport its documents. How can the company determine which is the fastest

Hypothesis Tests Example A Winnipeg based company has documents that must be quickly distributed to district offices throughout Canada. The firm must decide between two delivery services, UPX and INTEX, to transport its documents. How can the company determine which is the fastest How would you help the company determine which is the fastest service?

Hypothesis Tests Example A Winnipeg based company has documents that must be quickly distributed to district offices throughout Canada. The firm must decide between two delivery services, UPX and INTEX, to transport its documents. How can the company determine which is the fastest Independent Samples  a random set of documents is chosen and each document is sent by one of the delivery services.  a second random set of documents is chosen and each document is sent by the other delivery service  the results are analyzed as in the previous section How would you help the company determine which is the fastest service?

Hypothesis Tests Example A Winnipeg based company has documents that must be quickly distributed to district offices throughout Canada. The firm must decide between two delivery services, UPX and INTEX, to transport its documents. How can the company determine which is the fastest Independent Samples  a random set of documents is chosen and each document is sent by one of the delivery services.  a second random set of documents is chosen and each document is sent by the other delivery service  the results are analyzed as in the previous section How would you help the company determine which is the fastest service? results may be affected by the distance travelled by documents—because random selection it may not be the same for the 2 samples

Hypothesis Tests Example A Winnipeg based company has documents that must be quickly distributed to district offices throughout Canada. The firm must decide between two delivery services, UPX and INTEX, to transport its documents.