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Lisa stopped at Burger King fast food restaurant 5 times, and each time ordered large size French fries. Having nothing better to do, she counted how many French fries she received. The results follow: 73, 75, 83, 68, and 78 Assume that the number of French fries served at Burger King are normally distributed 21. Referring to Problem G, which hypothesis should we test if we want to know if the average number of French fries in a large size order served at Burger King is over 70 fries? a. Z-test of a population mean b. Z-test of a population proportion r-test of population mean d. f-test of population proportion C 22. Referring to Problem G, what are the degrees of freedom? a. 2.158 b. 0.10 c. 4 d. 70 23. Referring to Problem G, if a 0.10 and test statistic - 2.158, you would decide that a. The null hypothesis is not rejected. b. The alternative hypothesis is not rejected. lt c. The null hypothesis is rejected. d. Insufficient information exists on which to make a decision. Referring to Problem G, an appropriate conclusion is a. There is not enough evidence to conclude that the average number of French fries is less than 70, b. There is enough evidence to conclude that the average number of French fries is greater than 70. c. There is not enough evidence to conclude that the average number of French fries is equal to 70. d. There is enough evidence to conclude that the average number of French fries is less than 70. 25. Referring to Problem G, how could this hypothesis be incorrect? a. A sample of 5 French fries orders were taken. b. Al-test was done rather than a z-test. c. French fries were chosen on the basis of the server. d. The null hypothesis contained an equality. 4 of 9
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