Use technology and a t-test to test the claim about the population mean μ at the given level of significance a using given sample statistics. Assume the population is normally distributed. Claim: μ> 76; x = 0.10 Sample statistics: x= 77.8, s = 3.1, n = 27

This assignment is worth 1 points. The extra point will be added to your overall course grade. For example: if you receive an 88% in the course you can receive up to 1 point giving you a new score of 89%. The following rubric will be used.  0.25 point for drawing the normal distribution curve with the mean value labeled on the curve and the appropriate area shaded. 0.25 point for determining the value of the standard deviation of the sample mean.  0.5 point for finding the correct probability.   All work must be shown in order to receive any credit.  Please upload your completed assignment here.    The length of time taken on the SAT for a group of students is normally distributed with a mean of 2.5 hours and a standard deviation of 0.25 hours. A sample size of n = 60 is drawn randomly from the population. Find the probability that the sample mean is between two hours and three hours.

Can a normal approximation be used for a sampling distribution of sample means from a population with u = 55 and o = 10, when n = 4? Answer E Tables E Keypad Keyboard Shortcuts O Yes, because the mean is greater than 30. O Yes, because the sample size is less than 30. O No, because the sample size is less than 30. O No, because the standard deviation is too small.

Test the claim below about the mean of the differences for a population of paired data at the level of significance x. Assume the samples are random and dependent, and the populations are normally distributed. Claim: μ ≥0; x = 0.10. Sample statistics: d= -2.4, s = 1.3, n = 19 Identify the null and alternative hypotheses. Choose the correct answer below. OA. Ho: Hd 0 The test statistic is t = (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) Since the P-value is the level of significance, C OB. Ho: Hd>0 Ha: Hd ≤0 O D. Ho: Hd #0 Ha: Hd = 0 OF. Ho: Hd 20 Ha: Hd <0 the null hypothesis. There statistically significant evidence to reject the claim.

Use a​ t-test to test the claim about the population mean μ at the given level of significance α using the given sample statistics. Assume the population is normally distributed.   ​Claim: μ=52,500​; α=0.10     Sample​ statistics: x=52,691​, s=1900​, n=17   LOADING... Click the icon to view the​ t-distribution table. What are the null and alternative​ hypotheses? Choose the correct answer below.     A. H0​: μ≠52,500 Ha​: μ=52,500   B. H0​: μ≤52,500 Ha​: μ>52,500   C. H0​: μ=52,500 Ha​: μ≠52,500   D. H0​: μ≥52,500 Ha​: μ<52,500 What is the value of the standardized test​ statistic?   The standardized test statistic is nothing. ​(Round to two decimal places as​ needed.) What​ is(are) the critical​ value(s)?   The critical​ value(s) is(are) nothing. ​(Round to three decimal places as needed. Use a comma to separate answers as​ needed.) Decide whether to reject or fail to reject the null hypothesis.     A. Fail to reject H0.…

Use technology to help you test the claim about the population​ mean, μ​, at the given level of​ significance, α​, using the given sample statistics. Assume the population is normally distributed.   ​Claim: μ>1230​; α=0.07​; σ=205.81. Sample​ statistics: x=1263.09​, n=250   Calculate the standardized test statistic.   The standardized test statistic is enter your response here   . ​(Round to two decimal places as​ needed.)

Use technology and a​ t-test to test the claim about the population mean μ  at the given level of significance α using the given sample statistics. Assume the population is normally distributed.   ​Claim: μ>76​; α=0.01     Sample​ statistics: x=79.1​, s=3.5​, n=27