Statistics question and answers for October 18, 2023
- Q Trydint bubble gum company claims that 8 out of 10 people prefer their gum to Eklypse Test their claim at the 90 confidence level The null and alternative hypothesis in...
- Q A nurse claims the average number of patients per shift is 50 For which confidence interval should you reject Ho 48 to 51 52 to 55 47 to 52 49...
- Q Reject Correct Answer Do not reject Part 3 4 Part 4 of 4 the null hypothesis Ho State a conclusion There Choose one enough evidence to conclude that the mean...
- Q In a survey 10 people were asked how much they spent on their child s last birthday gift The results were roughly bell shaped with a mean and standard deviation...
- Q The pulse rates of 140 randomly selected adult males vary from a low of 45 bpm to a high of 125 bpm Find the minshum sample size required to estimate...
- Q Shade the intersection of the following system of inequalities y x 1 3 y 2x 4 A graphing utility was used to produce a table of values for functions y...
- Q b Is Ho rejected at the a 0 05 level c Is Ho rejected at the a 0 01 level Part 1 of 3 a Compute the value of the...
- Q Measuring lung function One of the measurements used to determine the health of a person s lungs is the amount of air a person can exhale under force in one...
- Q Part 2 of 4 Find the P value Round the answer to at least four decimal places P value 0 0258 Part 2 4 Part 3 of 4 Determine whether...
- Q a State the appropriate null and alternate hypotheses b Compute the P value c State a conclusion Use the a 0 01 level of significance Part 1 of 4 a...
- Q sample of 180 six year old girls weighed between 2003 and 2006 had an average weight of 50 4 pounds Assume the population standard deviation is a 16 5 pounds...
- Q Lifetimes of AAA batteries are approximately normally distributed A manufacturer wants to estimate the standard deviation of the lifetime of the AAA batteries it produces A random sample of 16...
- Q What are the degrees of tre d f 4 What is the critical value for this sample Round to four decimal places critical value 13 277 Complete the table by...
- Q What are the degrees of freedom d f 4 A B C D E What is the critical value for this sample Round to four decimal places critical value 13...
- Q Response A B C D E Observed Frequency 12 23 24 21 9 Expected Frequency 17 8 17 8 17 8 17 8 17 8 Or OT 0 OT O...
- Q the a 0 05 significance level test the claim that the responses occur with the same frequency Ho the test question responses occur with the same frequency Ha at least...
- Q Complete the table by calculating the expected frequencies Expected Frequency Category A B C D E Observed Frequency 14 13 13 5 8 What is the chi square test statistic...
- Q 4 categories occur with the following distribution Category A gives 40 category B gives 30 category C gives 10 and category D gives 20 of the distribution Ho the categories...
- Q 15 An ecologist working with the New Jersey Department of Environmental Projection has been tasked with monitoring the water quality at beaches near Monmouth University She has recruited some of...
- Q 1 A study randomly assigned adult subjects to one of three exercise treatments 1 a single long exercise period five days per week 2 several ten minute exercise periods five...
- Q e Test the claim that the log concentration of Enterococcus faecalis at beaches 2 and 4 differ at the 0 05 significance level
- Q Part 0 4 Part 1 of 4 Measuring lung function One of the measurements used to determine the health of a person s lungs is the amount of air a...
- Q Facebook A study showed that two years ago the mean time spent per visit to Facebook was 20 8 minutes Assume the standard deviation is a 8 0 minutes Suppose...
- Q Heavy children Are children heavier now than they were in the past The National Health and Nutrition Examination Survey NHANES taken between 1999 and 2002 reported that the mean weight...
- Q Part 0 3 Part 1 of 3 Z 4 A test is made of Ho 14 versus H 14 A sample of size n 48 is drawn and x 12...
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