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Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H₁. H₂:0 H₁:0 (b) Determine the type of test statistic to use. Type of test statistic: Chi-Square (c) Find the value of the test statistic. (Round to three or more decimal places.) 0 (d) Find the two critical values at the 0.10 level of significance. (Round to three or more decimal places.) and (e) At the 0.10 level, can the owner conclude that the mean daily sales of the two stores differ? Yes No Degrees of freedom: μ |x X a S X 00 0#0 0<0 Р 0=0 OSO 020 O

Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified. (If necessary, consult a list of formulas.) (a) State the null hypothesis H and the alternative hypothesis H₁. H₂:0 H₁:0 (b) Determine the type of test statistic to use. Type of test statistic: Chi-Square (c) Find the value of the test statistic. (Round to three or more decimal places.) 0 (d) Find the two critical values at the 0.10 level of significance. (Round to three or more decimal places.) and (e) At the 0.10 level, can the owner conclude that the mean daily sales of the two stores differ? Yes No Degrees of freedom: μ |x X a S X 00 0#0 0<0 Р 0=0 OSO 020 O

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter9: Solving Quadratic Functions
Section: Chapter Questions
Problem 4CA
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Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H₁. HO H₁ :0 (b) Determine the type of test statistic to use. Type of test statistic: Chi-Square (c) Find the value of the test statistic. (Round to three or more decimal places.) ▼ Yes No Degrees of freedom: (d) Find the two critical values at the 0.10 level of significance. (Round to three or more decimal places.) and (e) At the 0.10 level, can the owner conclude that the mean daily sales of the two stores differ? μ |x 9 0=0 O X S OSO P 2 010 <Q 020 0*0 0<0 0>0 3 E
Transcribed Image Text:Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H₁. HO H₁ :0 (b) Determine the type of test statistic to use. Type of test statistic: Chi-Square (c) Find the value of the test statistic. (Round to three or more decimal places.) ▼ Yes No Degrees of freedom: (d) Find the two critical values at the 0.10 level of significance. (Round to three or more decimal places.) and (e) At the 0.10 level, can the owner conclude that the mean daily sales of the two stores differ? μ |x 9 0=0 O X S OSO P 2 010 <Q 020 0*0 0<0 0>0 3 E
The owner of a chain of mini-markets wants to compare the sales performance of two of her stores, Store 1 and Store 2. Sales can vary considerably depending on the day of the week and the season of the year, so she decides to eliminate such effects by making sure to record each store's sales on the same 10 days, chosen at random. She records the sales (in dollars) for each store on these days, as shown in the table below. 34 5 6 789 10 Day Store 1 Store 2 Difference (Store 1 - Store 2) Send data to calculator Check 1 454 381 73 2 446 808 975 404 835 275 754 341 42 -27 221 -66 399 7 809 246 263 703 336 759 (a) State the null hypothesis H and the alternative hypothesis H₁. HO H₁:0 (b) Determine the type of test statistic to use. Type of test statistic: Chi-Square 63 50 300 214 734 Based on these data, can the owner conclude, at the 0.10 level of significance, that the mean daily sales of the two stores differ? Answer this question by performing a hypothesis test regarding (which is u with a letter "d" subscript), the population mean daily sales difference between the two stores. Assume that this population of differences (Store 1 minus Store 2) is normally distributed. + Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified. (If necessary, consult a list of formulas.) -54 49 -31 Degrees of freedom: н X O S 00 Р <Q ola 0=0 OSO 020
Transcribed Image Text:The owner of a chain of mini-markets wants to compare the sales performance of two of her stores, Store 1 and Store 2. Sales can vary considerably depending on the day of the week and the season of the year, so she decides to eliminate such effects by making sure to record each store's sales on the same 10 days, chosen at random. She records the sales (in dollars) for each store on these days, as shown in the table below. 34 5 6 789 10 Day Store 1 Store 2 Difference (Store 1 - Store 2) Send data to calculator Check 1 454 381 73 2 446 808 975 404 835 275 754 341 42 -27 221 -66 399 7 809 246 263 703 336 759 (a) State the null hypothesis H and the alternative hypothesis H₁. HO H₁:0 (b) Determine the type of test statistic to use. Type of test statistic: Chi-Square 63 50 300 214 734 Based on these data, can the owner conclude, at the 0.10 level of significance, that the mean daily sales of the two stores differ? Answer this question by performing a hypothesis test regarding (which is u with a letter "d" subscript), the population mean daily sales difference between the two stores. Assume that this population of differences (Store 1 minus Store 2) is normally distributed. + Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified. (If necessary, consult a list of formulas.) -54 49 -31 Degrees of freedom: н X O S 00 Р <Q ola 0=0 OSO 020
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