# Presented below test of h 100 versus h 1 100 sample

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presented below. Test of H0: 100 versus H1: 100 Sample mean 98.5 Std error of mean 0.777 Assuming the life length of batteries is normally distributed, if you wish to conduct this test using a .05 level of significance, what is the critical value that you should use? Place your answer, rounded to 3 decimal places in the blank. For example, -1.234 would be a legitimate entry.
Question 17 of 201.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE:For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly statedvalues. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. Suppose a firm that produces light bulbs wants to know whether it can say that its light bulbs typically last more than 1500 hours. Hoping to find support for their claim, the firm collects a random sample of n = 25 light bulbs and records the lifetime (in hours) of each bulb. The information related to the hypothesis test is presented below. Test of H0: 1500 versus H1:> 1500 Sample mean 1509.5 Std error of mean 4.854 What is the test value that you would use to conduct this test? Place your answer, rounded to 3 decimal places in the blank. For example, 1.234 would be a legitimate entry.
Part 3 of 3 -3.0/ 3.0 PointsQuestion 18 of 201.0/ 1.0 PointsAn alternative or research hypothesis is usually the hypothesis a researcher wants to prove.
Question 19 of 201.0/ 1.0 PointsIf a null hypothesis about a population proportion p is rejected at the 0.025 level of significance, then it must also be rejected it at the 0.05 level.
Question 20 of 201.0/ 1.0 PointsSample evidence is statistically significant at the level only if the p–value is larger than .TrueFalseAnswer Key: False
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