Use the pulse rates in beats per minute (bpm) of a random sample of adult females listed in the data set available below to test the claim that the mean is less than 75 bpm. Use a 0.01 significance level. E Click the icon to view the pulse rate data. Pulse rate data Assuming all conditions for conducting a hypothesis test are met, what are the null and alternative hypotheses? Ο Α. Η με 75 bpm H,:p> 75 bpm Ο Β . Η : με 75 bpm H:u#75 bpm Pulse Rate (bpm) 61 78 101 95 OD. Ho: H> 75 bpm H1:H<75 bpm O C. Ho: H= 75 bpm 38 58 97 81 63 57 64 48 H1:H<75 bpm 57 73 Determine the test statistic. 99 O (Round to two decimal places as needed.) 81 87 89 Determine the P-value. 89 92 35 85 |(Round to three decimal places as needed.) 51 79 101 93 State the final conclusion that addresses the original claim. 72 50 105 59 V Ho. There is V evidence to conclude that the mean of the population of pulse rates for adult females is 57 70 91 60 48 89 65 100 95 56 17

The corrosive effects of various soils on coated and uncoated steel pipe was tested by using a dependent sampling plan. The data collected are summarized below, where d is the amount of corrosion on the coated portion subtracted from the amount of corrosion on the uncoated portion. Does this random sample provide sufficient reason to conclude that the coating is beneficial? Use a = 0.01 and assume normality. n- 40, Σd- 207, Σα? = 6199 (a) Find t. (Give your answer correct to two decimal places.) (ii) Find the p-value. (Give your answer correct to four decimal places.) (b) State the appropriate conclusion. O Reject the null hypothesis, there is significant evidence that the coating is beneficial. Reject the null hypothesis, there is not significant evidence that the coating is beneficial. Fail to reject the null hypothesis, there is significant evidence that the coating is beneficial. Fail to reject the null hypothesis, there is not significant evidence that the coating is beneficial.

MORE BENEFITS OF EATING ORGANIC Using specific data, we find a significant difference in the proportion of fruit flies surviving after 13 days between those eating organic potatoes and those eating conventional (not organic) potatoes. This exercise asks you to conduct a hypothesis test using additional data. In this case, we are testing Họ : Po = Pc Ha: Po > Pc where p, and p. represent the proportion of fruit flies alive at the end of the given time frame of those eating organic food and those eating conventional food, respectively. Use a 5 % significance level. Effect of Organic Bananas After 25 Days After 25 days, the proportion of fruit flies eating organic bananas still alive is 0.45 , while the proportion still alive eating conventional bananas is 0.42. The standard error for the difference in proportions is 0.029. What is the value of the test statistic? Round your answer to two decimal places. z = i What is the p-value? Round your answer to three decimal places. p-value = What…

The Cadet is a popular model of sport utility vehicle, known for its relatively high resale value. For a random sample of 33 Cadets, each bought "new" two years ago and each sold "used" within the past month, the least-squares regression equation relating the two variables mileage (denoted by x) and used selling price (denoted by y, in dollars) was y = 39.52 – 0.56x . The standard error of the slope of this least-squares regression line was approximately 0.43. Based on this information, test for a significant linear relationship between the two variables by doing a hypothesis test regarding the population slope B,. (Assume that the variable y follows a normal distribution for each value of x and that the other regression assumptions are satisfied.) Use the 0.10 level of significance, and perform a two-tailed test. Then fill in the table below. (If necessary, consult a list of formulas.) Aa The null hypothesis: H : 0 The alternative hypothesis: H :] O=0 OSO The type of test statistic:…

Find the test statistic: Determine the​ P-value: State the final conclusion that addresses the original claim:

12% of all college students volunteer their time. Is the percentage of college students who are volunteers smaller for students receiving financial aid? Of the 374 randomly selected students who receive financial aid, 41 of them volunteered their time. What can be concluded at the αα = 0.05 level of significance? The test statistic ? z t Correct =  (please show your answer to 3 decimal places.)   The p-value =  (Please show your answer to 4 decimal places.)

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Test the claim about the population​ mean, μ​, at the given level of significance using the given sample statistics.   ​Claim: μ≠7000​; α=0.05​; σ=324. Sample​ statistics: x=7300​, n=39     Determine the critical​ value(s). Select the correct choice below and fill in the answer box to complete your choice.   ​(Round to two decimal places as​ needed.)   A. The critical values are     B. The critical value is

Use the given information to find the critical values  and .  (Use technology or the attached Chi-Square table.) Platelet Counts of Women 80​% confidence n=26 s=65.3