machupicchuholiday
Calculators
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
machupicchuholiday
machupicchuholiday
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
MATH SOLVE
Home
Suppose a researcher is testing the hypothesis Upper H 0: pequals0.4 versus Upper H 1: pless than0.4 and she finds the P-value to be 0.33. Explain what this means. Would she reject the null hypothesis? Why? Choose the correct explanation below. A. If the P-value for a particular test statistic is 0.33, she expects results no more extreme than the test statistic in about 33 of 100 samples if the null hypothesis is true. B. If the P-value for a particular test statistic is 0.33, she expects results no more extreme than the test statistic in exactly 33 of 100 samples if the null hypothesis is true. C. If the P-value for a particular test statistic is 0.33, she expects results at least as extreme as the test statistic in about 33 of 100 samples if the null hypothesis is true. D. If the P-value for a particular test statistic is 0.33, she expects results at least as extreme as the test statistic in exactly 33 of 100 samples if the null hypothesis is true. Choose the correct conclusion below. A. Since this event is unusual, she will reject the null hypothesis. B. Since this event is not unusual, she will reject the null hypothesis. C. Since this event is unusual, she will not reject the null hypothesis. D. Since this event is not unusual, she will not reject the null hypothesis.
General
4 months ago
Write the equation in standard form for the circle with center (4,0) passing through 4,(11/2).
General
4 months ago
I’m stuck here please help !!!
General
4 months ago
Conservationists have despaired over destruction of tropical rain forest by logging, clearing, and burning." These words begin a report on a statistical study of the effects of logging in Borneo. Here are data on the number of tree species in 12 unlogged forest plots and 9 similar plots logged 8 years earlier: Unlogged 22 18 22 20 15 21 13 13 19 13 19 15 Logged 17 4 18 14 18 15 15 10 12 Use the data to give a 90% confidence interval for the difference in mean number of species between unlogged and logged plots. Compute degrees of freedom using the conservative method.Interval: _____ to ______.
General
4 months ago
A marketing firm is asked to estimate the percent of existing customers who would purchase a "digital upgrade" to their basic cable TV service. The firm wants 99 percent confidence and an error of ± 5 percent. What is the required sample size (to the next higher integer)?A. 664B. 625C. 801D. 957
General
4 months ago
Write two equivalent expressions that represents the situation. What is the difference in their Elevations? And airplane flies an altitude of 25,000 feet. A submarine a diverse to a depth of 600 feet below sea level.
General
4 months ago
of 100 students,65 are members of a mathematics club and 40 are members of a physics club. if 10 are members of neither club then how many students are members of a.both clubs?b.only mathematics club?c.only physics club?
General
4 months ago
Each game costs 1$ and each ride costs $3.50. Sam spent $28.50 altogether at the carnival and the number of rides she went on is 3 more than the number of games she played. Determine the number of games Sam played and the number of rides Sam went on.
General
4 months ago
A farmer uses a lot of fertilizer to grow his crops. The farmer's manager thinks fertilizer products from distributor A contain more of the nitrogen that his plants need than distributor B's fertilizer does. He takes two independent samples of four batches of fertilizer from each distributor and measures the amount of nitrogen in each batch. Fertilizer from distributor A contained 23 pounds per batch and fertilizer from distributor B contained 18 pounds per batch. Suppose the population standard deviation for distributor A and distributor B is four pounds per batch and five pounds per batch, respectively. Assume the distribution of nitrogen in fertilizer is normally distributed. Let µ1 and µ2 represent the average amount of nitrogen per batch for fertilizer's A and B, respectively. Calculate the value of the test statistic.
General
4 months ago
Previously, an organization reported that teenagers spent an average of 4.5 hours per week on the phone. The organization thinks that the current mean is higher. To test the claim, fifteen randomly chosen teenagers were asked how many hours per week they spend on the phone. The sample mean was 4.75 hours with a sample standard deviation of 2.0. Suppose that a hypothesis test is conducted to test the claim that the mean hours is more than 4.5 hours per week. What are the hypotheses for the test?
General
4 months ago
What can be determined about this data set before finding the range or the interquartile range? 19, 25, 35, 38, 41, 49, 50, 52, 99
General
4 months ago
The means and mean absolute deviations of the amount of rain that fell each day in a local city, last week and this week, are shown below. Means and Mean Absolute Deviations of Rainfall Last Week and This Week Last Week This Week Mean 3.5 in. 2.7 in. Mean Absolute Deviation 1.2 in. 0.5 in. Which expression compares the difference of the two means to this week’s mean absolute deviation?(A) 0.8/0.7(B) 2.7/0.7(C) 0.8/0.5(D) 2.7/0.5
General
4 months ago
Plot the x- and y-intercepts to graph the equation. y=13x−1 .PLEASE plot it on a graph PLEASE and i will get you brainly and 15 points
General
4 months ago
The recipe makes enough stew for 6 people, and the ingredients cost $9.75. How much would it cost to serve 24 people? Use the rate table to solve the proportion.
General
4 months ago
Partition a number line from 0 to 1 into fourths.Decompose 3/4 into 6 equal lengths.
General
4 months ago
Evelyn is waiting in line for concert tickets. She is 2.5 blocks from the ticket booth. 16 blocks equals 1 mile. Each person takes up about 2 feet in the line. Which calculation can be used to find about how many people are ahead of Evelyn in line?
General
4 months ago
WHERE ARE ALL OF MY MATH GENIUSES AT!!!!!!!!1.)Factory workers test 80 batteries. Four batteries are defective. What is the experimental probability that a battery is defective?2.) Assume this trend continues. Predict the number of defective batteries in a batch of 1,600.3.)THERE ARE SIX OPEN CONTAINERS ARRANGED AS SHOWN. YOU TOSS A BALL AND IT FALLS INTO ONE OF THE CONTAINERS AT RANDOM. FIND EACH PROBABILITY. (ORDER OF NUMBERS IN A TRIANGLE: 123456)P(number greater than 4)P(even number)P(4)P(7)4.)a car comes in the colors and models listed in the table below. assume there is the same chance of selecting any color or model.silver hatchbackgray coupeblack sedanGive sample spacefind the probability that a car selected at random is silver hatchbackfind the probability that a car selected at random is yellow coupe5.)design a simulation that can be used to estimate the probability that a student will get at least 2 answers correct when guessing the answers to 3 true or false questions.6.)on average 9% of the packages delivered by a shipping company are late. use the random digits below as a simulation tool to estimate the probability that a customer can receive at least 4 packages without any being late. each row represents one trial.63 13 02 4151 44 40 60 25 63 84 1171 81 32 79 72 39 13 7510 85 99 9359 70 00 6851 64 94 0891 71 39 9570 27 23 61
General
4 months ago
From the sample space sequals={1, 2, 3, 4,..., 15} a single number is to be selected at random. given event a, that the selected number is even, and event b, that the selected number is a multiple of 4, find p(upper a vertial line upper ba∣b).
General
4 months ago
What is the effect if two parallel lines are rotated 90° clockwise? A)change'direction but remain parallel B) change direction but are now perpendicular C) no longer parallel because one line changed direction D)no longer parallel because two lines changed direction (NEED HELP)
General
4 months ago
Jack bought two sweaters for $17.99 and a pair slacks for $25.50. including a 5 1/2% tax, how much was his total purchase?
General
4 months ago
Previous
1
2
3
4
5
6
7
8
9
10
11
12
13
Next