Suppose a random sample of 100 observations from a binomial population gives a value of p 0.69, and you are interested in the population proportion. Consider testing Ho:p Ha :P0.75. Find the p-value of this test. 0.75 versus

Q: In a study of births in 2007, it was found that 51% were male and 49% were female. If 100 people are…

A: Given that there are 51% are male and 49% are female & if 100 people selected randomly we have…

Q: For a Normal Random Variable X with a mean of 80 and a Standard Deviation of 7, find P(73<X<94)

A:

Q: A sample of n=4 scores has SS=60. what is the variance for this sample?

A:

Q: A population has SS - 100 and variance, o-4. What is the value of EX - jal for the population? O 100…

A: given that ss of population=100 variance σ2 =4 σ2= [Σ(x-μ)2]/N where N is number of data

Q: d) If the variance is 120 1b, what sample size is necessary to estimate true yield point to be…

A: Given that  Variance  ?2=120 Margin of error =E =3 99% confidence.

Q: For a binomial distribution, mean = 4 and variance 4/3. Then the value of p is

A: For a binomial distribution ,                                            Mean       = n×p…

Q: A Pearon’s r correlation revealed a significant relationship between timespent outside at age four…

A: From the provided information, The correlation r(16) = 0.51 Here 16 is the degree of freedom.

Q: You assume equal variances in a two-sample t-test. n1 = 12 and d.f. = 18. What is n2?

A: It is given that n1 =12 and df =18.

Q: The table on the last page displays the cdf for continuous random variable X, which has a mean of 1…

A: We know, the median divides the data into two equal parts, therefore, If PX≤x=PX≥x=0.5, then x is…

Q: Suppose 500 coins are tossed. Using the normal curve approximation to the binomial distribution,…

A: Binomial approximation: The normal distribution can be used as an approximation to the binomial…

Q: A sample of n -9 scores is obtained from a population with u- 70 and o - 18. If the sample mean is M…

A: Given that, n=9μ=70σ=18M=76

Q: Suppose a random variable x is best described by a normal distribution with = 60 and o=4. Find the…

A: The mean is 60 and the standard deviation is 4.

Q: A sample of n = 9 scores has SS = 200. What is the variance for this sample?

A:

Q: A sample of n = 26 scores has SS = 125. What is the variance for this sample ?

A: According to the given information, we have SS = 125 n = 26

Q: For a sample of n = 200, what is the mean of the binomial distribution with p = .20 and q = .80?

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: In practice, when comparing two means using small samples, when would you recommend assuming equal…

A: We have to find current option from the given options.

Q: A sample of n = 9 men are asked." what is the fastest you have ever driven a car?" The sample mean…

A: Given: n=9

Q: In a 4-week study about the effectiveness of using magnetic insoles to treat plantar heel pain, 50…

A:

Q: Assume that you have a binomial experiment with p = 0.4 and a sample size of 120. What is the…

A: Given that, From binomial experiment, Probability, p = 0.4 Sample size, n = 120

Q: Suppose a random variable, x, arises from a binomial experiment. Suppose n = 8 and p = 0.62 (Must…

A: Given data, n=8 p=0.62

Q: For the case where the population ratio to population is p = 0.08, what is the probability of…

A: It is an important part of statistics. It is widely used.

Q: in a binomial distribution, if n= 4 and p = 1/3 then the value of variance is?

A: Given:     n = 4 probability of success (p) = 1/3

Q: A sample of n =16 scores has a mean of M =65 and an estimated standard error = 2 What is the sample…

A: Given Information: Sample size (n) = 16 Mean  = 65 Standard Error (SE) = 2 To find the variance of…

Q: If you are given n=593n=593 and p=0.3p=0.3 for a binomial experiment, use the normal distribution to…

A: The random variable X follows normal distribution. We have to find the probability that X greater…

Q: For a sample of n = 11 scores with SS = 440. What is the sample variance and the estimated standard…

A: Sample  Variance s2 = SS/n-1 Estimated standard error sM = s/sqrt(n).

Q: In a 4-week study about the effectiveness of Do you Feel Better? Magnetic Insoles using magnetic…

A: n1 = 51, x1 = 18, p1 = 0.353 n2 = 48, x2 = 16, p2 =0.381

Q: For the experiment above, let X denote the number of diamonds that are drawn. For this random…

A:

Q: The assumption of homogeneity of variances was tested by Levene’s Test, F(2, 432) = .75, p = .48.…

A: Decision rule: If p-value ≤ α, then reject the null hypothesis. Otherwise, fail to reject the null…

Q: Q3: Let i be the observed mean of a random sample of size n from a distribution having mean u and…

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: The General Social Survey polled a sample of 1048 adults in the year 2010, asking them how many…

A: Answer :-  Z-test for two populations   1) when the data are normally follows then use the Z test (…

Q: The variance of a binomial distribution for which n = 100 and p = 20 is: O 100 80 20 O 16 A Moving…

A:

Q: Q2 A new battery supposedly with a charge of 1.5 volts actually has a voltage with a uniform…

A: Given,      A new battery supposedly with a charge of 1.5 volts      actually has a voltage…

Q: For a sample of n = 100, what is the standard deviation of the binomial distribution with p = .20…

A: Given : It is asked to find the of n = 100 With the given standard deviation p = 0.20 and q = .80

Q: A study wants to investigate whether the population variance is greater than 8. If a random sample…

A: Given : n = 40 s2 = 10 Hypothesis : H0 : σ2 ≤ 8 H1 : σ2 &gt; 8

Q: A repeated measures study using a sample of n=32 participants would produce a t statistic with df=…

A: Given problem is : A repeated measures study using a sample of n=32 participants would produce a t…

Q: a. Obtain the cdf of X. b. What is P(X ≤ .5)? c. Using the cdf from (a), what is P(.25 < X ≤ .5)?…

A: we have the pdf, f(x) = 90x8(1-x)= 90(x8-x9) for 0&lt;x&lt;1 we want to find, a. Obtain the cdf of…

Q: A sample of n = 9 scores has a variance of s2 = 36. What is the estimated standard error for the…

A: Estimated standard Error of Mean =    Given, n=9 S2=36 Therefore substitute n,S2   in above…

Q: If all the possible random samples with n = 36 scores are selected from a normal population with µ =…

A: Identify the correct option for the average of all the sample means. The correct option is…

Q: An independent-measures study produces sample means of M, 20 and M2 17. If both samples have n = 18…

A: The formula for Cohen’s D is: d = (M1 – M2) / spooled Where: M1 = mean of group 1 = 20 M2 =…

Q: Consider a population with variance 41 and mean 1. What is the z-score for a the value x = 20? Round…

A: Given: Variance= 41 Mean =1 To find: z-score for the value x=20

Q: A Repeated-Measures study using a sample of n = 20 participants would produce a t-statistic with df…

A: We have given following statement A Repeated measures study using of n = 20 participants would…

Q: Assume that you have a binomial experiment with p = 0.4 and a sample size of 50. The variance of…

A: X be a random variable that follows binomial distribution with probability of success 0.40 and…

Q: The null hypothesis for a repeated-measures test states O cach individual will have a difference…

A: Repeated measures design is known as a design that includes numerous measures of a similar variable…

Q: A sample of n = 25 scores has a mean of x̅ = 65 and an estimated standard error of sM = 2 points.…

A: Given that, x̅ = 65sM = 2 n=25 The formula of sample variance is, Using the standard error of…

Q: The assumption of homogeneity of variances was tested, and the Levene’s test yielded a value of (p =…

A: The hypothesis to be tested here is- H0:σ12=σ22=σ32=.....=σk2 Homogenity of varianceH1:σi2≠σj2 For…

Q: An experiment compares two treatment conditions with a sample of n = 20 in each treatment. If the…

A: Solution:-  We have given that  Sample size n = 20 and two treatment.

Q: Assume that you have a binomial experiment with p= .3 and a sample size of a 100. The value of the…

A: Conider a binomial random variable "X". The variance of the random variable X is given by:

Q: In a 4-week study about the effectiveness of using magnetic insoles to treat plantar heel pain,…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: (a) Calculate n . s for these data, the mean of the variances of the four samples and the value of…

A: Given Data :   Variety A Variety B Variety C Variety D   65 55 56 62   64 56 59 59   60 63…

Q: = 8 and

A: Here it is given that - n=4 ∑X=8 ∑X2 = 40

Unitary Method

The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products. 

Speed, Time, and Distance

Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.

Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

Units and Measurements

Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.