The average hours spent per person checking social media in a week is expected to be 13 hours. The researcher believes that the mean to be different, she drew a random sample of 15 from a normally distributed population. Assume The null hypothesis indicated a two tailed test and the researcher decided to use 10% significance level. For what value oft will the hypothesis not be rejected? Between 1.753 and - 1.753 Between 1.761 and -1.761 To the left of 1.761 or to the right of - 1.753 To the left of -1.753 or to the right of 1.753 A dietitian is looking into the average weight of middle school & High school students in Bahrain. The population mean was KG 45,55 with a standard deviation on 14.44. Assuming It is normally distributed. She drew a sample of 20 students whose average weight was KG 42.25 Calculate the Test Statistic? (write your answer in 2 decimal numbers) A manufacturer of leather products wanted to test a new machine it has recently bought in comparison to its previously installed machines He decided to do a hypothesis test with a level of confidence of 0.85, what is his level of significance at each side of the normal distribution, considering that this is a two tailed hypothesis. (write your answer in 2 decimal places) The average hours spent per person checking social media in a week is expected to be 13 hours. The researcher believes that the mean to be different, she drew a random sample of 15 from a normally distributed population. Assume The null hypothesis indicated a two tailed test and the researcher decided to use 10% significance level. For what value oft will the hypothesis not be rejected? Between 1.753 and - 1.753 Between 1.761 and -1.761 To the left of 1.761 or to the right of - 1.753 To the left of -1.753 or to the right of 1.753 A dietitian is looking into the average weight of middle school & High school students in Bahrain. The population mean was KG 45,55 with a standard deviation on 14.44. Assuming It is normally distributed. She drew a sample of 20 students whose average weight was KG 42.25 Calculate the Test Statistic? (write your answer in 2 decimal numbers) A manufacturer of leather products wanted to test a new machine it has recently bought in comparison to its previously installed machines He decided to do a hypothesis test with a level of confidence of 0.85, what is his level of significance at each side of the normal distribution, considering that this is a two tailed hypothesis. (write your answer in 2 decimal places)