Yolanda owns a jewelry boutique. She wonders if the wording for a sale affects t
ID: 3158140 • Letter: Y
Question
Yolanda owns a jewelry boutique. She wonders if the wording for a sale affects the number of customers who enter. On given days she puts up one of three types of signs: "Storewide Sale," "Big Savings," or "Major Markdowns". Then she records the number of customers each hour that day. She does this for 3 weeks, varying the signs so that each sign was used on each day of the week over the 3-week period. Here are the date: What are the independent and dependent variables in this study? IV:___________________ DV:____________________ State the null hypothesis and the research hypothesis. null: alternative: Calculate F and compare it with the critical value of F at the.01 and.05 alpha levels. At what level of error can you reject the null hypothesis, if at all? critical value at.01________ critical value at.05__________Explanation / Answer
a)
IV: The wording for a sale
DV: The number of customers who enter
b)
Null: The mean number of customers each day for each wording for the sale are all equal.
Alternative: The mean number of customers each day for each wording for the sale are not all equal.
**************************
c)
Using technology, we get the following summary:
Hence, the F value is
F = 0.378787879 [ANSWER]
********************
Meanwhile, the critical values are, as df1 = 2, df2 = 18,
Fcrit(0.05) = 3.554557146 [ANSWER]
Fcrit(0.01) = 6.012904835 [ANSWER]
**********************
As from the table, the P value is big, Pvalue = 0.6900, then we cannot reject the null hypothesis at both 0.05 and 0.01 levels. [ANSWER]
*****************************************************
Hi! There are many different technologies available, like graphing calculators, spreadsheets, and you can even find some online tools in specific problems like this (one-way anova). Thanks!
Anova: Single Factor SUMMARY Groups Count Sum Average Variance Column 1 7 61 8.714286 12.2381 Column 2 7 51 7.285714 8.238095 Column 3 7 51 7.285714 17.2381 ANOVA Source of Variation SS df MS F P-value Between Groups 9.52381 2 4.761905 0.378788 0.690021 Within Groups 226.2857 18 12.57143 Total 235.8095 20Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.