my question contains 4 points kindly answer the all, if u won't don't solve , answer clear and if u r not sure from answer don't solve plz , thank u , sir
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p value for 2 tailed test=2*p value for one tailed test
p value table for one tailed test as follows:
my question contains 4 points kindly answer the all, if u won't don't solve , answer...
Please answer all Question 24 1 pts Solve the problem. A 90% confidence interval for the average salary of all CEOs in the electronics industry was constructed using the results of a random survey of 45 CEOs. The interval was to make more useful inferences from the data, it is desired to reduce the width of the confidence interval. Which of the following will result in a reduced interval width? O Decrease the sample size and decrease the confidence level....
Question 2 ases 5 pts Je Use the confidence level and sample data to find a confidence interval for estimating the population u. Find the margin of error E and round your answer to the nearest tenth. n 49, = 87,5 - 12: 90% confidence Question 4 5 pts Use the confidence level and sample data to find a confidence interval for estimating the population p. Round your answer to the nearest tenth, if necessary. Test scores: n - 100...
The average daily volume of a computer stock in 2011 was u = 35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 40 trading days in 2014, he finds the sample mean to be 27.5 million shares, with a standard deviation of s = 14.9 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a)...
Please show all work. Use the following information for questions 1-10: A researcher is creating a new treatment protocol for Myelodysplastic Syndrome (MDS), a form of preleukemia. Following the old treatment protocol, 32% of patients with MDS will develop leukemia within 5 years of MDS diagnosis. He believes his new treatment protocol will lead to fewer MDS patients developing leukemia. He takes a random sample of 100 individuals on his new treatment protocol. Of these 100 individuals, 27 develop leukemia...
The principal of a school claims that the percentage of students at his school that come from single-parent homes is 11%. He takes a random sample of 100 students and finds 15 students (15%) come from single-parent homes. At the 0.05 significance level, test his claim by providing each of the following: a. the null and alternative hypothesis b. the test statistic c. the pvalue d. state the final conclusion in nontechnical terms e. describe what type 1 error would...
Please answer all questions Question 30 1 pts Solve the problem. To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed. The FDA tests on this cigarette yielded mean nicotine content of 24.4 milligrams and standard deviation of 2.2 milligrams for a sample of r9 cigarettes. Construct a 95% confidence interval for the mean nicotine content...
Using the dataset that you used for the midterm (Find it on the Blackboard), do the following: 1) (4 points) Submit the values for items a to e in the table below: mean, sample size, standard deviation, and 95% confidence interval for mean. (SPSS Command: Analyze/Descriptive Statistics/Explore) Variable Statistic Height Mean 71.2 Sample Size N 999 Standard Deviation 2.913 95% Confidence Interval for Mean Lower Bound 71.02 Upper Bound 71.38 2) (4 points) Assume that you want to test whether...
The average daily volume of a computer stock in 2011 was u = 35.1 milion shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 40 trading days in 2014, he finds the sample mean to be 25,3 million shares with a standard deviation of s 12.1 million shares. Test the hypotheses by constructing a 95% confidence interval. Complete parts (a) through...
The quality control team of a chemical factory is comparing two types of alloys (Alloys A & B) for their sulphur content. According to industry standards, it is suggested that the mean sulphur content of Alloy A should be 2mg/cm' less than the mean sulphur content of Alloy B. The Team obtained the following random samples of sulphur content measurements for Alloys A and B (in mg/cm). Alloy 1 Sample Data from HW Dataset.xls: column A7-A Alloy 2 Sample Data...
Someone plz plz help with this Statistics Intro to R programming question!!! Here are the examples and follow by my question!! Thank you so much!! I appreciate it !!!!My question!!!! Question Type 1: If possible, calculate the 90% confidence intervals for the temperature it takes for crickets to chirp 15 chirps per second. Code (you must copy and paste your code like below in blue color): # Reading in the data Crickets-read.table(C:/Desktop/CricketChirpsvsTemperature.csv', header TRUE, #View Data View Crickets) #Data analysis...