Dandee Donuts wants to determine if there are differences in what donuts people prefer. The research...

Dandee Donuts wants to determine if there are differences in what donuts people prefer. The research hypothesis is that there is a difference between donuts. They consult their records and pick a random selection of days for each donut and write the count of how many donuts were sold. The data set is below: The Dandee Donut The Sour Cream Donut White Frosted Donut 560 435 200 485 490 235 787 327 157 324 599 268 580 430 215 672 385 400 499 575 307 583 200 108 245 433 203 Perform a one-way ANOVA.

What can we conclude from this test? the null hypothesis. There between donuts. They additional t-tests to determine where that difference i

Expert Solution

H0: There is no significance difference among the means of three group

H1: At least two groups means are different

From the given data

		Total	Ti^2/ni
The Dandee Donut	560	485	787	324	580	672	499	583	245	4735	2491136
The Sour Cream Donut	435	490	327	599	430	385	575	200	433	3874	1667542
White Frosted Donut	200	235	157	268	215	400	307	108	203	2093	486738.8
									G=	10702	4645417

Since p-value = 0.000 < alpha 0.05 so we reject H0

Thus we conclude that tt least two group means are different

t-test:

From the given data

orchestra answered 2 years ago

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