&Review Paired Sp22.pdf - Adobe Acrobat Pro DC (32-bit) X File Edit View E-Sign Window Help Home Tools GOLFFFFFF.pdf 1212.pdf junq.pdf Review Paired Sp22... x A 2 / 4 91.9% 3. Children who watch cartoons with food commercials, on average ate 30.1 grams of crackers while watching TV as compared to an average of 25.5 grams of crackers for those children who watch cartoons without food commercials. There are 26 children in each sample, with the sample standard deviation of 8.5 grams and 7.8 grams respectively. Green first sample, purple second sample At a 0.05 level of significance, the challenge is that the mean amount of crackers eaten is significantly higher for children who watched cartoons with food advertisements. (HINT: The challenge would be the alternative hypothesis) Pooled variance = Ho : food no food Ha: H1 > H2 tails crit a stat pvalue Decision: Type here to search O N W X 58.F Mostly cloudy ~ ENG 12:24 AM 6/12/2022 12&Review Paired Sp22.pdf - Adobe Acrobat Pro DC (32-bit) X File Edit View E-Sign Window Help Home Tools GOLFFFFFF.pdf 1212.pdf jung.pdf Review Paired Sp22... x A 3 / 4 + 91.9% 4. The winter holiday season is always the busiest for e-commerce businesses, with the most sales and biggest discounts. It has been assumed that there is the same proportion of online shoppers from one year to the next. In 2019, 800 customers were asked "Did you shop online during the holiday season?" 584 replied "yes" and 216 replied "no". In 2018, 600 customers were asked "Did you shop online during the holiday season?" 423 replied "yes" and 177 replied "no". Test the researcher challenge at the significant level a=0.01 that there was a different proportion of online shoppers in 2019 compared to 2018. 2019 2018 crit stat pvlaue Ho: Ha : Sample proportion for 2019 = Sample proportion for 2018 = Grand proportion - Type here to search O N E W X 58.F Mostly cloudy ~ ENG 12:24 AM 6/12/2022 12