Mathematics, 23.04.2020 19:48 abby28734
Paul wants to compare whether the prices of tangerines in two supermarkets differ significantly. He has been noting down the daily prices for the last few days and has found the difference in the sample means to be 20 cents. If the standard deviation of the distribution of the difference between sample means is 28 cents and we are testing the null hypothesis at the 95% confidence level, which statement is true?
A.
The difference between the two means is significant at the 95% confidence level, so the null hypothesis must be rejected.
B.
The difference between the two means is not significant at the 95% confidence level, so the alternative hypothesis must be rejected.
C.
The difference between the two means is not significant at the 95% confidence level, so the null hypothesis must be rejected.
D.
The difference between the two means is not significant at the 95% confidence level, so the alternative hypothesis must be accepted.
E.
The difference between the two means is significant at the 95% confidence level, so the alternative hypothesis must be rejected.
Answers: 2
Mathematics, 21.06.2019 17:40
Afamily of five rents a kayak and splits the total time, k, equally. each family member spent less than 25 minutes kayaking. which values can be used to complete the math sentence below so that it accurately represents the situation? intro done
Answers: 2
Mathematics, 21.06.2019 18:40
20 points for the brainliest? drag each tile to the correct box. not all tiles will be used. arrange the steps to solve the equation . plz
Answers: 2
Mathematics, 21.06.2019 19:00
Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b
Answers: 1
Paul wants to compare whether the prices of tangerines in two supermarkets differ significantly. He...
English, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
Social Studies, 10.11.2020 14:00
Arts, 10.11.2020 14:00
World Languages, 10.11.2020 14:00
Geography, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
English, 10.11.2020 14:00
Social Studies, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00