data values

The data obtained from a sample survey of purchasers of the car yielded the results as shown. At α = 0.01, find the chi-square test value. Does the gender determine the type of car purchased? => 11.3, yes or 7.43, yes or 7.43, no or 11.3, no..

The standard deviation of the amount of car sales for 6 years in state 1 is 1.14 and for state 2 is 1.08. Find the F-test value. Does the variance of amount of car sales for both states differ at 90% confidence level? The data is in millions of dollars. => 2.09, yes or 1.11, no ..

If the mean of the data 30, 36, 54, x , 42, 48 is 41, then find the value of x . => 169 or 41 or 210 or 36..

The owner of a restaurant claimed that the number of days the workers missed the work due to illness before a program is less than that after the program.The data is shown. Find the test value and verify if his claim is correct at 99% confidence. Before (X 1 ) 2 6 3 5 3 1 2 Afte..

A manual of Medical Information reports that the average weight of a new born baby is 7 pounds. As per the data collected from 15 maternity hospitals, the average weight of a newborn was 7.1 pounds and the standard deviation, 0.2 pounds. Use the P-value method, at α = 0.05..

A study was conducted to find the relationship between the number of accidents commited and the age of the driver. The data gathered from a sample survey of individual drivers is as per the table. At α = 0.1, find the chi-square test value and test the hypothesis that the ..

Determine the equation of the regression line for the data and predict the value for y ′ when x = 3.0. x 2.1 1.7 1.1 1.5 2.7 y 40 37 35 36 42 => y ′ = 29.438 - 4.704 x , 15.326 or y ′ = 4.704 + 29.438 x , 93.018 or y ′ = 4.704 + 29.438 x , 43.55 or y &pri..

Consider data on seniority of job position and gender. The data is tabulated as shown: Level 1 Level 2 Level 3 Male 150 100 50 Female 100 75 25 At α = 0.01, find the critical value and the chi-square test value. => 16.812, 1.98 or 4.605, 9.21 or 9.21, 1..

The data corresponding to the attitudes of six persons before and after watching a movie on exercise is given. A high value indicates a more favorable attitude towards exercise. At 99% confidence find the test value and check whether the means differ. Before (X 1 ) 12 ..

Select the incorrect statement(s). I. If a confidence interval does not include H 0 , then a hypothesis test will reject H 0 . II. If a confidence interval include H 0 , then a hypothesis test will reject H 0 III.For testing H 0 , t distribution is appropriate when the standard deviation is estimat..