What is our decision for a goodness of fit test with a computed chi-square value of 12.34 and a critical value of 10.355?

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Aspirin is packed in 120 tab bottles with weight normally distributed with mean 600g and standard deviation 6g.  Rejected bottles are those whose weight differs from the mean weight by 15g or more.  That is, rejected bottles have weight either too small or too large.  We want to find out how many bottles will be rejected from a daily production of 5000 bottles. 1,Do we have to calculate one z-score or two z-scores?     2. The negative z-score is    3. The positive z-score is      4.How many bottles, of the 5000, do we anticipate to have to reject?

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p∗=72%p∗=72%. You would like to be 95% confident that your esimate is within 0.2% of the true population proportion. How large of a sample size is required?n = Do not round mid-calculation. However, use a critical value accurate to three decimal places.

Bonferroni adjustments are necessary when making multiple comparisons to avoid inflating the Type I error rate. True False

what  is the  ​ chi-square test for goodness of fit for the study​ (use the 0.01 ​level)State the null and research hypotheses?Determine the cutoff sample score at which the null hypothesis should be rejected.?what is the cutoff score ? Solve for A-F based on the chart attached?

The average expenditure per student for a certain school year was $10,550 with a population standard deviation of $1600.   A survey for the next school year of 100 randomly selected students resulted in a sample mean of $11000.  Do these results indicate that the average expenditure has changed? use α = 0.01 a/ state the hypothesis b/ find the critical value(s) c/ find the test value d/ make a decision e/ write the summary