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an you please answer drop down question, A, and B  A.  H0 = p1 or μ1 (=,<,>, ≠ ) p2 or μ2 H1=  p1 or μ1 (=,<,>, ≠ ) p2 or μ2 B. Z or T

Q1) Below find the records of 12 randomly selected used pickup trucks (none used commercially) and 11 randomly selected used passenger cars, the time (in years) that they were kept by the original owner before being sold: Used pickup trucks | 3 | 2.5 2.9 5 4.2 3.1 3.3 4 5.3 3.8 4.5 Used passenger cars | 2.2 3 2.8 4.3 4 3.3 2.9 2.1 2 3.1 3 It is known that the standard deviation of used pickup trucks is 2 years and of used passenger cars is 1 year. (a) Investigate, at the 5% significant level, whether the mean time (in years) that used pickup trucks were kept by the original owner before sold is larger than used passenger cars. (b) What assumption is needed to perform the test in (a). (c) Construct the 96% confidence interval for the mean difference of time (in years) were kept by the original owner before sold between used passenger cars and used pickup trucks. Use this confidence interval to tell whether there is difference in the mean time (in years) between these 2 tynes of…

Q Q Q Search m.pdf (5) A survey of 50 people finds: 13 like Coke. 9 like Sprite. 8 like Root Beer. 5 like Coke and Sprite. 3 like Coke and Root Beer. 4 like Sprite and Root Beer. 2 like all three. First draw the Venn Diagram for the results of this survey then determine how man people like Sprite, but do not like Coke or Root Beer. MAY tv A MacBook Air

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10) - ets.timoteabojorqu x nt/showtest.php?action=skip&to=3 Do rats take more time on average than hamsters to travel through a maze? The table below shows the times in seconds that the rats and hamsters took. Rats: 29, 39, 34, 23, 28, 19, 24, 23, 27 Hamsters: 21, 22, 13, 7, 39, 15, 40, 13 Assume that both populations follow a normal distribution. What can be concluded at the a 0.10 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v?vSelect an answer v (please enter a decimal) H: Select an answer v Select an answer v (Please enter a decimal) b. The test statistic ? = c. The p-value = d. The p-value is ? va e. Based on this, we should Select an answer v the null hypothesis. (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) f. Thus, the final conclusion is that ... O The results are statistically significant at a = 0.10, so there is…

There are 5 black, 3 white, and 4 yellow balls in a box (THE SAME BOX as seen in the previous question). Four balls are randomly selected without replacement. Let Y be the number of yellow balls selected. Find P[Y =2]. 5 3 в w О а. About 21% O b. About 25% С. About 34%. d. About 9.3% e. About 13%

Is the following variable discrete or continuous: The number of times a coin must be flipped until the first Tails is observed. Is the following variable discrete or continuous: The number of questions asked during a 1-hour review session.