4. A researcher wanted to examine the effect of a new math study skills program on second graders. Fifteen students took the new study skills program for six weeks and then took a standardized math exam, which is known to have a population mean score of u 80. The scores on the exam for the 15 students (who took the study skills program) are reported below Scores on the standardized math exam for the 15 students: 79, 85, 86, 75, 82, 84, 85, 81, 75, 84, 78, 90, 85, 83, 80 Test to see whether the students who took the new study skills program have significantly higher test scores than the national average. Perform the appropriate test in SPSS using a 05 = a. State the null and alternative hypotheses below b. What type of test should be run on the data (be specific with the exact name of the test)? For example, don't just state "t test," but the specific t test used c. What is the conclusion of the hypothesis test? State the p-value and the decision about the hypothesis test below. (Don't write the results here - that will be done in (d) below -just state p and whether Ho is rejected.) d. What is the effect size for the study? Calculate and report the effect size below. Indicate the magnitude of the effect size according to Cohen's standards and interpret what the effect size means in terms of standard deviation units. e. Write the results of the test in APA format below

Question

I have attached a picture of the question. Please only answer section A, B, and C.

4. A researcher wanted to examine the effect of a new math study skills program on second
graders. Fifteen students took the new study skills program for six weeks and then took a
standardized math exam, which is known to have a population mean score of u 80. The scores
on the exam for the 15 students (who took the study skills program) are reported below
Scores on the standardized math exam for the 15 students: 79, 85, 86, 75, 82, 84, 85, 81, 75, 84,
78, 90, 85, 83, 80
Test to see whether the students who took the new study skills program have significantly higher
test scores than the national average. Perform the appropriate test in SPSS using a 05
=
a. State the null and alternative hypotheses below
b. What type of test should be run on the data (be specific with the exact name of the test)? For
example, don't just state "t test," but the specific t test used
c. What is the conclusion of the hypothesis test? State the p-value and the decision about the
hypothesis test below. (Don't write the results here - that will be done in (d) below -just state p
and whether Ho is rejected.)
d. What is the effect size for the study? Calculate and report the effect size below. Indicate the
magnitude of the effect size according to Cohen's standards and interpret what the effect size
means in terms of standard deviation units.
e. Write the results of the test in APA format below
Expand
Transcribed Image Text

4. A researcher wanted to examine the effect of a new math study skills program on second graders. Fifteen students took the new study skills program for six weeks and then took a standardized math exam, which is known to have a population mean score of u 80. The scores on the exam for the 15 students (who took the study skills program) are reported below Scores on the standardized math exam for the 15 students: 79, 85, 86, 75, 82, 84, 85, 81, 75, 84, 78, 90, 85, 83, 80 Test to see whether the students who took the new study skills program have significantly higher test scores than the national average. Perform the appropriate test in SPSS using a 05 = a. State the null and alternative hypotheses below b. What type of test should be run on the data (be specific with the exact name of the test)? For example, don't just state "t test," but the specific t test used c. What is the conclusion of the hypothesis test? State the p-value and the decision about the hypothesis test below. (Don't write the results here - that will be done in (d) below -just state p and whether Ho is rejected.) d. What is the effect size for the study? Calculate and report the effect size below. Indicate the magnitude of the effect size according to Cohen's standards and interpret what the effect size means in terms of standard deviation units. e. Write the results of the test in APA format below

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: novel pages-  a random sample of 25 novels has a standard deviation of 9 pages. Find the 95% confide...

A: The sample standard deviation is 9.The sample size is 25.

Q: A football coach randomly selected ten players and timed how long each player took to perform a cert...

A: Solution:The sample mean is obtained below:From the given information, number of observations is 10 ...

Q: The article "Facebook Use and Academic Performance Among College Students"† estimated that 87% perce...

A: It is given that the population proportion is 0.87. In the survey the sample proportion van be obtai...

Q: 5. Suppose that the probability of obtaining zero defective items in a sample of 50 items off the as...

A: It is given that P(getting zero defective items) is 0.34 and P(getting 1 defective items) is 0.46.

Q: Two fair dice are rolled, one blue, (abbreviated B) and one red, (abbreviated R). Each die has one o...

A: Note:Hey there! Thank you for the question. The Venn d=Diagram that you have posted is in image form...

Q: i need help with how to figure out this problem. i don't understand how to find the solution in a ga...

A: From the provided information, if a coin is tossed and a die is rolled than the total sample space c...

Q: (Previous Problem for reference: A randomsample of 10 males 50 years of age is selected and their we...

A: Given:X=# Hrs ExerciseY=SBP

Q: Find the standard deviation of the distribution in the following situations. (a) MENSA is an organiz...

A: a)It is given that the mean is 100.The IQs in the top 2% of the population represents the area of 0....

Q: Please give me answer of these questions?

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: the distribution of certain test scores  is a nonstandard normal distribution with a mean of 80 and ...

A: Given:Population mean (μ) = 80Population standard deviation (σ) = 3

Q: In 2008, the Detroit Lions set an NFL record by losing all 16 regular-season games. Suppose that the...

A: It is given that n =16.Here, probability of winning an individual game is 0.10.

Q: Based on all student records at Camford University, students spend an average of 5.5 hours per week ...

A: Hey, since there is multiple subpart questions posted, we will answer first three subparts. If you w...

Q: Question 4 of 7 Big babies: The National Health Statistics Reports described a study in which a samp...

A: From the given information,Sample size (n) =315, mean (μ) =25.6, standard deviation (σ) =5.3 and lev...

Q: 63% of all students at a college still need to take another math class. If 4 students are randomly s...

A: It is given that n =4 and p = 0.63.The probability mass function of binomial distribution is given b...

Q: what would the 95% confidence limits for a sample of 120 with a mean of 51 and a standard deviation ...

A: It is given that mean and standard deviation are 51 and 12, respectively.

Q: A random sample of 25 observations yield a mean of 106 and a standard deviation of 12. Find the prob...

A: From the given information,Sample size 25, mean 106 and standard deviation 12

Q: A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 50% ...

A: Given datan= 10p= 0.5probability that exactly two-fifths of the buyers would prefer green is given b...

Q: Please show TI 84 steps

A: The given data show that the surface roughness of coated interior pipes.

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean...

A: Given mean = 1503Standard deviation = 308The minimum score required for admission = 1626The Z score ...

Q: Question 1

A: Let mu1 be the sample mean of acute schizophrenics and mu2 be the mean of chronic schizophrenics.Hyp...

Q: rosoft Edge atic/nb/ui/evo/index.html?deploymentid-589573205424674386703380718elSBN-9780357035108&id...

A: Given Datadfbetween = 2dfwithin = 30Degrees of freedom of treatments is given byK-1 = 2K represents ...

Q: The National Assessment of Educational Progress (NAEP) includes a mathematics test for eighth‑grade ...

A: Given The mean mathematics score = 282Standard deviation = 110Sample size n = 136900The standard dev...

Q: Bags of dog food are labeled 1 through 50. What is the probability that the dog will choose a number...

A: It is provided that, the bags of food have been labeled through 1 to 50.The formula to calculate the...

Q: What is the formula for this standard deviation?   What does the central limit theorem say about the...

A: Solution:Standard deviation:The variation between each observation from its mean is known as standar...

Q: A marketing firm wishes to estimate the standard deviation of the ages of college students. How many...

A: It is given that the margin of the error E is 0.05σ, respectively. The level of confidence is 0.95.

Q: Problem 4

A: Preliminary calculation:Using the EXCEL formula “=NORM.S.INV(1-(0.05/2))”, the z-value for 95% confi...

Q: Number 19.

A: a)It is given that the population mean before treatment is given as 40, population mean after treatm...

Q: Let x be the number of units (in thousands) that a company produces and let p(x) be the profit (in t...

A: Enter the Given Data in Excel as shown below

Q: Translate each of the following research questions into appropriate H0 and Ha. Census Bureau data s...

A: Note:Hey there! Thank you for the question. As have posted two different questions together- identif...

Q: The probability of a randomly selected adult in one country being infected with a certain virus is 0...

A: It is provided that the probability, in one country a randomly selected adult being infected with a ...

Q: calculate the probability of exactly 3 successes in 4 tries. p= 0.2

A: Given:n = 4, r= 3, p = 0.2Consider that the random variable X follows a binomial distribution with p...

Q: A standard six-sided die shows a number, 1, 2, 3, 4, 5, or 6, on each of its sides. You roll the die...

A: The sample space for the given experiment is S={1,2,3,4,5,6}Define the given events as,E={2,4,6} the...

Q: Suppose that 30% of all students who have to buy a text for a particular course want a new copy (the...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: 27. Call me: A sociologist wants to construct a 95% confidence interval for the proportion of childr...

A: It is given that margin of error (E) is 0.02 and the confidence level is 95%.Here,

Q: In a random sample of 340 cars driven at low altitudes, 46 of them exceeded a standard of 10 grams o...

A: Given Data

Q: Scrapper Elevator Company has 20 sales representatives who sell its product throughout the United St...

A: Solution:a.The distribution of sample means is identified below: Central limit theorem:If the sample...

Q: 72% of owned dogs in the United States are spayed or neutered. Round your answers to four decimal pl...

A: Hello! As you have posted 4 sub parts, we are answering the first 3 sub-parts.  In case you require ...

Q: Six hundred and five survivors of a heart attack, were randomly assigned to follow either (1) a diet...

A: Given Data

Q: #4: Suppose that X1,... , X7n is an i.i.d. random sample drawn from a U[a, 1] uniform distribution, ...

A: Click to see the answer

Q: An investigator wants to estimate the impact of smoking on the incidence of prostate cancer. The inc...

A: Note: Hi there! Thanks for posting the question. It is not clear from your question that what to cal...

Q: please answer 1 & 2 The National Highway Safety Administration recognizes that the antilock...

A: 1)Formulation of hypothesisNull Hypothesis: - There is no difference between the average fatal crash...

Q: Assume that adults have IQ scores that are normally distributed with a mean of μ=105 and a standard ...

A: It is given that IQ score of adults is normally distributed with mean 105 and standard deviation is ...

Q: Please explain, in basic terms, how the Central Limit Theorem helps me obtain a likely value of the ...

A: Central limit theorem:Central limit theorem is defined as the sampling distribution of any identical...

Q: At a dog show, there are 26 tickets in a raffle cup for the basket I want (including mine).  What is...

A: The total number of tickets are 26 and only one ticket per person in the cup is allowed.

Q: Please see picture

A: Solution:1.The expected value of X is obtained below:

Q: Part 1  Scores for a common standardized college aptitude test are normally distributed with a mean ...

A: Hello there! there are more than one question. According to our policies we cannot answer more than ...

Q: Part A. Please show ti 84 steps

A: (a) The random sample, n is 60, the standard deviation is 20 and the sample mean is 32. The confiden...

Q: Big babies: The National Health Statistics Reports described a study in which a sample of 355 one-ye...

A: a) From the given information, the claim of the problem is testing whether the mean weight of one-ye...

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the h...

A: It is given that the mean and standard deviation are 69.0 and 2.8.

Q: In a state's Pick 3 lottery, you pay $1.48 to select a sequence of three digits (from 0 to 9), such ...

A: Given Total number of picks in lottery = 3Total number of digits from 0 to 9 = 10The amount paid to ...