STAT.F/BUS.+ECON.-MYLABSPLUS ACCESS CAR
13th Edition
ISBN: 9780135411711
Author: MCCLAVE
Publisher: PEARSON
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Chapter 15.6, Problem 15.55LM
a.
To determine
To Specify: The null and alternative hypotheses.
b.
To determine
To obtain: The rejection region for the test.
c.
To determine
whether the effectiveness of three different treatments differs or not.
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The following data are from an independent-measures experiment comparing two treatment conditions. Treatment 1 Treatment 2
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M2 = _____________________________
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The data below are from an independent-measures experiment comparing three different treatment conditions.
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Chapter 15 Solutions
STAT.F/BUS.+ECON.-MYLABSPLUS ACCESS CAR
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- The data below are from an independent-measures experiment comparing three different treatment conditions. Treatment 1 Treatment 2 Treatment 3 0 1 4 0 4 3 0 1 6 2 0 3 Your conclusion: choose a number. reject the null hypothesis (1) fail to reject the null hypothesis (2)arrow_forwardFollowing the above cross, 28 offspring expressed the recessive phenotype, and 56 offspring expressed the dominant phenotype. a. How many degrees of freedom are there for a χ2 calculation? b. What is the critical value from the χ2 table? c. What is your calculated χ2 value? Show your work. d. Do you accept or reject the null hypothesis, and does that mean that the Punnett square correctly predict the outcomes of the cross?arrow_forwardA researcher wishes to see whether there is any difference in the weight gains of athletes following one of three special diets. Athletes are randomly assigned to three groups and placed on the diet for 6 weeks. The weight gains (in pounds) are shown here. What can be concluded here? Diet A Diet B Diet C 3 10 8 6 12 3 7 11 2 4 14 5 8 6 A) At a 5% level of significance, there is enough evidence to reject the null hypothesis that there is no difference in the diets. B) The data prove that there is a difference in the diets. C) The data prove that there is no difference in the diets. D) A) At a 5% level of significance, there is not enough evidence to reject the null hypothesis that there is no difference in the diets E) None of the choicesarrow_forward
- The following data summarize the results from an independent-measures study comparing three treatment conditions. Treatment I II III N = 12 4 3 8 G = 48 3 1 4 ∑X2 = 238 5 3 6 4 1 6 x̅1 = 4 x̅2 = 2 x̅3 = 6 T1 = 16 T2 = 8 T3 = 24…arrow_forwardQ3. The following data are from a completely randomized design. [Multiple choice with single answer] Treatment A Treatment B Treatment C 30 40 40 36 38 40 33 38 36 32 42 34 Sample mean 32.75 39.5 37.5 Sample variance 6.25 3.6667 9 At the α = 0.05, test whether the means for the three treatments are equal. (A). Using F table, what is the most possible range of values of the p-value? (a) 0.025<p-value<0.1 (b) 0.025<p-value<0.05 (c) 0.05<p-value<0.1 (d) 0.01<p-value<0.05 (e) 0.01<p-value<0.025 (f) None of the above (B). What is the Fisher’s LSD value? (a) 5.3236 (b) 3.3236 (c) 2.77 (d) 4.0164 (e) 5.3780 (f) None of the above (C). Is there a significant difference between the means for treatments A and B? (a) Yes, because 32.75≠39.5 (b) No, because 32.75<39.5 (c) No, because 6.75>LSD (d) Yes, because -6.75<LSD (e) Yes, because 6.75<LSD (f) None of the abovearrow_forwardMethod A: M1= 54, SS1= 400, n1= 15 Method B: M2=40, SS2= 440, n2=15 Using alpha=0.05 should the null hypothesis by rejected for the above data?arrow_forward
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