with a standard deviation of 0.6 ounces. If the manufacturer decides on a significance level of 0.05 test, should the null hypothesis be rejected?
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- Either complete solution or leave it hanging I vill down vote if not complete solution.Assume a significance level of a = 0.01 and use the given information to complete parts (a) and (b) below. Original claim: The standard deviation of pulse rates of a certain group of adult males is more than 14 bpm. The hypothesis test results in a P-value of 0.3989. a. State a conclusion about the null hypothesis. (Reject Ho or fail to reject Ho.) Choose the correct answer below. O A. Reject Ho because the P-value is less than or equal to a. O B. Fail to reject Ho because the P-value is greater than a. O C. Rejecdo because the P-value is greater than a. O D. Fail to reject Ho because the P-value is less than or equal to . b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? O A. There is not sufficient evidence to support the claim that the standard deviation of pulse rates of the group of adult males is more than 14 bpm. O B. There is sufficient evidence to support the claim that the standard…When the population standard deviation is unknown and the sample size is greater than 30, what table value should be used in computing a confidence interval for a mean? a. z b. t c. chi square d. standard deviation
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- Do a hypothesis for the following, make sure to include and label all five steps: Test the claim that the weights of quarters manufactured with a new machine have a standard deviation less than .058 g. If a sample of 25 has a sample standard deviation of .049 g. Use a significance level of 0.05.A survey found that women's heights are normally distributed with mean 63.9 in. and standard deviation 2.9 in. The survey also found that men's heights are normally distributed with mean 69.4 in. and standard deviation 3.5 in. Consider an executive jet that seats six with a doorway height of 55.7 in. Complete parts (a) through (c) below. a. What percentage of adult men can fit through the door without bending? The percentage of men who can fit without bending is D96 (Round to two decimal places as needed.) Enter your answer in the answer box and then click Check Answer. parts remaining Clear All Check AnswerAn educational researcher claims that the average GPA of graduate students at FIU is less than 3.5 . To test his claim he collected data on 81 graduate students . The sample mean GPA was 3.25 with a standard deviation of 0.3 . What is the conclusion ? Group of answer choices A. Reject the null hypothesis B. Type I error C. Fail to reject the null hypothesis D. Reject the alternative hypothesis
- The mean annual tuition and fees for a sample of 14 private colleges in California was $37,900 witrh a standard deviation of $7,200. A dotplot shows that it is reasonable to assume that the population is approxiamately normal. Can you conclude that the mean tuition and fees for private institutions in California differs from $35,000? a. State the null and alternate hypothesis. b. Compute the value of the t statistic. How many degrees of fredom are there?A researcher is studying how much electricity (in kilowatt hours) people from two different cities use in their homes. Random samples of 11 days from Tampa (Group 1) and 16 days from New York City (Group 2) are shown below. Test the claim that the mean number of kilowatt hours in Tampa greater than the mean number of kilowatt hours in New York City. Use a significance level of a = 0.10. Assume the populations are approximately normally distributed with unequal variances. Round answers to 4 decimal places. Tampa New York City 1015.4 1010 1010.3 1022.8 1001.7 1028.9 1001.7 1026.9 1022.6 1001.7 1020.2 1012.4 1021.9 1015.9 1018.9 1005.8 996.2 1006.1 1010.5 1012 1005.1 1025.9 1005.6 1020.2 985.3 994.9 1013.2 What are the correct hypotheses? Note this may view better in full screen mode. Select the correct symbols for each of the 6 spaces. Ho: Select an answer ✓ ? Select an answer ✓ H₁: Select an answer ✓ ? ✓ Select an answer ✓