Mathematics, 22.11.2019 04:31 rhettperkins
The fma company has designed a new type of 16 lb. bowling ball. the company knows that the average man who bowls in a scratch league with the company's old ball has a bowling average of 155. the company asks a random sample of 120 men bowling in scratch leagues to bowl for five weeks with their new ball. the mean of bowling averages for these men with the new ball is 170. the variance is 100. if we want to test the null hypothesis that the new ball does not have the same bowler's average as the last ball using α=0.05, find the rejection region and test statistic of the necessary test to be hel?
Answers: 3
= 
= -1.96
= 
= 1.96
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 19:30, leannamat2106
Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.
Answers: 1
Mathematics, 21.06.2019 19:30, jrassicworld4ever
Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
You know the right answer?
The fma company has designed a new type of 16 lb. bowling ball. the company knows that the average m...
Questions in other subjects:
History, 06.08.2019 03:10
English, 06.08.2019 03:10
English, 06.08.2019 03:10
