Mathematics, 20.01.2021 05:10, carelee1269

Child psychologists study the time, in months, that it takes for infant boys and girls to say their first words. For a certain population, the distributions of time for both populations have the same mean and have the same standard deviation, μ=8 months and σ=1.4 months. Two independent random samples of infant boys and girls were taken, and the time it took for the infants in each sample to say their first words was recorded. The summary statistics for the number of months are shown in the following table.

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 16:20, williamsgregg5214

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Answers: 3

continue

Mathematics, 21.06.2019 23:30, yaretxi

If you measured the width of a window in inches and then in feet with measurement would you have the greater number of units

Answers: 3

continue

Mathematics, 21.06.2019 23:30, shreyapatel2004

What is the area of a triangle with a base of 7x and height of 8x expressed as a monomial? question 5 options: 1x 15x2 28x2 56x2

Answers: 1

continue

Mathematics, 22.06.2019 00:00, enevjordan

What is 617.3 miles and each gallon of gas the car can travel 41 miles select a reasonable estimate of the number of gallons of gas karl used.