Please show all work (cannot use excel for using two tailed test) has to be very detailed! thank you  a. State the null and alternate hypotheses b. Determine whether the correlation between social media use and self-esteem is statistically significant using a two tailed test with α = .05 c. Why do we reject the null when the test statistic is greater than the critical value? Compute r squared and explain what this number tells you.

Q: (c) Test the claim at the 0.01 significance level.

A: Given that,population mean sample mean sample size  Sample standard deviation Assume the level of…

Q: The amount of pollutants that are found in waterways near large cities is normally distributed with…

A: It is given that the mean and standard deviation are 8.7 ppm and 1.8 ppm, respectively. Here, the…

Q: H4: u#5.00 Mbps O B. Ho: H5.00 Mbps H,: u<5.00 Mbps Identify the test statistic, O (Round to two…

A: Given data : sample size, n =50 sample mean, x̄ = 4.81 sample standard…

Q: It is vitally important that using the right quantitative instrument is vital to the efficacy and…

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

Q: A simple random sample of men aged 60 to 70 (Group 1) and a simple random sample of men aged 35 to…

A: Null vs Alternative hyptheses:P-value = 0.04

Q: The amount of coffee that people drink per day is normally distributed with a a mean of 16 ounces…

A: As per guideline expert have to answer first question three subparts only dear student please upload…

Q: Lakeln -year period by Colleg males took an average of four English courses with a standard…

A: Given: The value of test statistics is given as tcal=-3.108. s1 be the sample standard deviation of…

Q: A hypothesis will be used to test that a population mean equals 13 against the alternative that the…

A: Answer level of significance =0.040H0:μ =13H1:μ&lt;13This is left -tailed test.

Q: The display provided from technology available below results from using data for a smartphone…

A: The random variable X follows normal distribution. The population mean is 5.00 Mbps. We have to test…

Q: The display provided from technology available below results from using data for a smartphone​…

A: The null and alternative hypothesis is, The value of test statistic is,  t=-2.378232  ≈-2.38

Q: In the past, the mean runing ime for a certain type of flshight attery has been 7.9 hours. The…

A: Given  mu=7.9, n=40, Xbar=8.1, alpha=0.05,sigma=sd=0.5

Q: 12% of all Americans suffer from sleep apnea. A researcher suspects that a higher percentage of…

A: The random variable sleep apnea follows normal distribution. We have to test whether higher than 12%…

Q: I understand how to get the p value. I used the graphing calculator method: stat-tests-1propZtest,…

A: Note: based on the information, we used graphing calculator (T1-83 plus). In this context, you…

Q: The mean number of eggs per person eaten in the United States is 224. Do college students eat less…

A: 5). The null and alternative hypotheses are:

Q: question below Test the claim that the proportion of men who own cats is significantly different…

A: We have to find p value.

Q: Big babies: The National Health Statistics Reports described a study in which a sample of 335 one-…

A: To find: wheather to reject the null hypothesis or fail to reject the null hypothesis.

Q: The display provided from technology available below results from using data for a smartphone…

A: Given that  μ=5.00 Mbps Null hypothesis=H0 ,  Alternate hypothesis=H1

Q: re n = 183, x = 7.59, s = 1.89. Use a 0.01 significance level to test the claim that the population…

A: n=183 x-bar=7.59 s=1.89 alpha=0.01

Q: I am trying to perform a T-Test Two Sample Assuming Equal Variance test in my excel and once I go to…

A: To perform a t-test for two samples assuming equal variances in Excel, follow the steps given below:…

Q: Do student IQ scores differ significantly from the population (μ = 100 & σ = 15)? components: state…

A: Given the data asIQ111114111106107112115115107981289510378908611590

Q: You wish to test the following claim (Ha) at a significance level of a Ho: P₁ = P₂ Ha: P₁ P2 You…

A: Given Alpha=0.005 n1=126 n2=173 x1=290 x2=486

Q: The following data represent the length of time, in days, to recovery for patients randomly treated…

A: From the information, given thatThe formula of the confidence interval is,where,

Q: 3. [Management Decision] Management must make a decision concerning the adoption of either plan I or…

A: Let 1 and 2 be the subscript for the plan I and plan II, respectively. Then, provided that the…

Q: A data set includes data from student evaluations of courses. The summary statistics are n= 91, x =…

A: Given that,population mean(u)=4.25sample mean, x =4.11standard deviation, s =0.52number (n)=91

Q: Which section of the course did better on the GRE Math exam after the course – the one with homework…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Coumadin is a drug used to thin the blood. In clinical trials, among 5799 patients treated with the…

A: Given that, x=149,n=5799 The sample proportion is, The type of test is two tailed test.

Q: total years of education and an indicator variable for female (1 if yes, 0 otherwise). SUMMARY…

A: As due to the honor-code we are authorized to answer only 3 subparts for each question and that you…

Q: Previously, 4% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician…

A: Given,n=135X=4Sample proportion (p^)=Xn Sample proportion (p^)=4135 Sample proportion…

Q: Esp A consumer products testing group is evaluating two competing brands of tires, Brand 1 and Brand…

A: From the provided information, Sample size (n) = 10 Level of significance (α) = 0.10

Q: 13. Are post hoc tests necessary following a significant ANOVA testing one independent variable with…

A: Note : Since you have asked multiple questions, we will solve the first question for you. If you…

Q: A gaming company claimed that their role-playing games take over 65 hours to complete. A sample of…

A: From the provided information, Sample size (n) = 300 Sample mean (x̅) = 63 Sample standard deviation…

Q: In 2015, the proportion of people with Traumatic Brain Injury was 0.0062 in the United States.…

A: In 2015, the proportion of people with Traumatic Brain Injury was 0.0062 i.e. P = 0.0062 Sample size…

Q: A clinical researcher performs a clinical trial on 12 patients to determine whether a drug treatment…

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

Q: A sample of 51 stocks traded on the NYSE that day showed that 5 went up. You are conducting a study…

A:

Q: The display provided from technology available below results from using data for a smartphone…

A: We have tk identify value of test statistics.