Mathematics, 05.05.2020 16:17 bricefitzpatrick0429
A sample of 81 account balances of a credit company showed an average balance of $1,200 with a standard deviation of $126.
a. Formulate the hypotheses that can be used to determine whether the mean of all account balances is significantly different from $1,150.
b. Compute the test statistic.
c. Using the p-value approach, what is your conclusion? Let α = .05.
Answers: 3
Mathematics, 22.06.2019 01:30
Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =
Answers: 3
Mathematics, 22.06.2019 02:30
Aband wants to create a cd of their last concert. to creat the cds, the cost will be $350 advertisement fee plus $3 per cd.write an inequality that represents how many cds they can buy with a maximum of $1225.solve the inequality
Answers: 1
Mathematics, 22.06.2019 03:00
∠1 and ∠2 are vertical angles. ∠2 has a measure of 63°. what is the measure of ∠1 ? enter your answer in the box.
Answers: 2
A sample of 81 account balances of a credit company showed an average balance of $1,200 with a stand...
Mathematics, 21.10.2020 02:01
Biology, 21.10.2020 02:01
Mathematics, 21.10.2020 02:01
Engineering, 21.10.2020 02:01
Mathematics, 21.10.2020 02:01
Mathematics, 21.10.2020 02:01
Chemistry, 21.10.2020 02:01
Mathematics, 21.10.2020 02:01
Mathematics, 21.10.2020 02:01
Biology, 21.10.2020 02:01