Mathematics
Mathematics, 06.12.2020 04:10, joujousis

Two random samples are selected from two independent populations. A summary of the samples sizes, sample means, and sample standard deviations is given below: n1=51,n2=50,x¯1=54.4,x¯2=73.1,s1=5. 2s2=10.6 Find a 95% confidence interval for the difference μ1−μ2 of the means, assuming equal population variances. Confidence Interval =

answer
Answers: 1

Other questions on the subject: Mathematics

image
Mathematics, 20.06.2019 18:04, fdelacruz19
Tree diagram to find the prime factors of 18
Answers: 2
image
Mathematics, 21.06.2019 18:20, nehaljay1883
The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%
Answers: 1
image
Mathematics, 21.06.2019 20:50, kassandramarie16
Amanda went into the grocery business starting with five stores. after one year, she opened two more stores. after two years, she opened two more stores than the previous year. if amanda expands her grocery business following the same pattern, which of the following graphs represents the number of stores she will own over time?
Answers: 3
image
Mathematics, 21.06.2019 22:00, Isaiahgardiner5143
Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?
Answers: 3
Do you know the correct answer?
Two random samples are selected from two independent populations. A summary of the samples sizes, sa...

Questions in other subjects:

Konu
Mathematics, 17.12.2020 06:00