old Curriculum has n1=19,new curriculum n2=25. a=0.01Thanks. Thanks.
Posted: Mon Jul 11, 2022 11:24 am
old Curriculum has n1=19,new curriculum n2=25. a=0.01Thanks.
Thanks.
A group of third grade students is taught using a new curriculum. A control group of third grade students is taught using the old curriculum. The reading test scores for the two groups are shown in the back to back stem-and-leaf plot. Al a-001, there enough evidence to support the claim that the new method of teaching reading produces higher reading test scores than the old method does? Assume the population variances are equal Complete parts (a) through (e) below. Assume the samples are random and independent, and the populations are normally distributed DA 16 OB. 14-5.176 Old New Curriculum Curriculum -2.419 (Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate answers as needed) Select the correct rejection region(s) below 07-6-1-6 14-4 2|3 7648 99774420 578 77655100 6 022344555677 701148999 857 Key: 41710 74 Old and 70 New (c) Find the standardized test statistic t-(Type an integer or decimal rounded to three decimal places as needed.) GOLD 200.05%, 4. AK Points: 0.44 of 1
A group of third grade students is taught using a new curriculum. A control group of third grade students is taught using the old curriculum. The reading test scores for the two groups are shown in the back-to-back stem-and-leaf plot. At a 0.01, is there enough evidence to support the claim that the new method of teaching reading produces higher reading test scores than the old method does? Assume the population variances are equal Complete parts (a) through (e) below. Assume the samples are random and independent, and the populations are normally distributed OA 14 (11 14-6.176 Old New Curriculum Curriculum 19-6446 0.1-6 23 7648 99774420578 77055100 6 022344555677 701148999 -2419 (Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate ansevers as needed) Select the correct rejection region(s) below. 857 Key: 41710 74 Old and 70 New (c) Find the standardized test stabi t-Type an integer or decimal rounded to three decimal places as needed.)
Thanks.
- Old Curriculum Has N1 19 New Curriculum N2 25 A 0 01thanks Thanks 1 (33.91 KiB) Viewed 40 times
- Old Curriculum Has N1 19 New Curriculum N2 25 A 0 01thanks Thanks 2 (26.01 KiB) Viewed 40 times
A group of third grade students is taught using a new curriculum. A control group of third grade students is taught using the old curriculum. The reading test scores for the two groups are shown in the back-to-back stem-and-leaf plot. At a 0.01, is there enough evidence to support the claim that the new method of teaching reading produces higher reading test scores than the old method does? Assume the population variances are equal Complete parts (a) through (e) below. Assume the samples are random and independent, and the populations are normally distributed OA 14 (11 14-6.176 Old New Curriculum Curriculum 19-6446 0.1-6 23 7648 99774420578 77055100 6 022344555677 701148999 -2419 (Type an integer or decimal rounded to three decimal places as needed. Use a comma to separate ansevers as needed) Select the correct rejection region(s) below. 857 Key: 41710 74 Old and 70 New (c) Find the standardized test stabi t-Type an integer or decimal rounded to three decimal places as needed.)